Dissertations / Theses: 'Hirsutism'

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Vourvouli-Rickers, Filia-Styliani [Verfasser]. "Evaluierung und Standardisierung des SAHQ (Skin Academy Hirsutism Questionnaire) Fragenbogens für Patientinnen mit Hirsutismus / Filia-Styliani Vourvouli-Rickers." Gießen : Universitätsbibliothek, 2017. http://d-nb.info/1144828058/34.

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Ekbäck, Maria Palmetun. "Hirsutism and quality of life with aspects on social support, anxiety and depression." Doctoral thesis, Örebro universitet, Institutionen för hälsovetenskap och medicin, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-32020.

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Hirsutism is excessive hair growth in women. The prevalence is estimated at 5%. The aim of this thesis was to describe different aspects of how life is affected for women suffering from hirsutism. Both qualitative and quantitative methods were used. Study I showed that hirsutism deeply affects women’s experiences of their bodies in a negative way and was experienced as a life sorrow. In Study II the patient-physician relationship was described. The patient-physician relationship from the patient’s perspective was suboptimal, as most meetings included feelings of being rejected and even humiliation. In Study III the aim was to translate and psychometrically evaluate an instrument that measures perceived social support, “The Multidimensional Scale of Perceived Social Support” (MSPSS). The translation was performed according to WHO:s official process, and validation was performed in a sample that consisted of 281 participants, 127 women with hirsutism (main sample) and 154 nursing students. MSPSS had good psychometric properties with regard to factor structure, construct validity, internal consistency and reproducibility. Study IV described different aspects of HRQoL in the main sample, the correlation of anxiety, depression, level of hairiness, age and BMI. The F-G scores were dichotomized into minor (F-G ≤14) and major (F-G≥15) hair growth. Higher levels of hair growth were significantly correlated to a lower level of QoL measured by DLQI, EQ-5D and symptoms of both anxiety and depression measured by HADS. Study V investigated if social support was associated with quality of life and outcome of HRQoL compared to a reference group of women (n=1115). SF-36, the MSPSS and the F-G scale were used. Compared to the reference group, women with hirsutism reported lower quality of life in all dimensions of SF-36 (p<0.01) The dimension most affected was vitality (VT=41.2), which had a lower value than has been reported for patients with MS and myasthenia gravis. A Multiple Regression Analysis showed a significant relation between quality of life and social support, indicating its importance for the ability to adapt, in spite of low quality of life.

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Wippel, Cássia dos Santos. "Hirsutismo autorreportado e comorbidades na pós-menopausa." Universidade Federal de Santa Maria, 2017. http://repositorio.ufsm.br/handle/1/11880.

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Polycystic Ovarian Syndrome (PCOS) is the most frequent metabolic disorder in the female population. It affects 10% of women of childbearing age, and its pathophysiology, although not completely known, is associated with insulin resistance, hyperandrogenism and gonadotropin alteration. The diagnosis is of exclusion and is difficult due to the multiple phenotypes found, being fundamental the presence of menstrual dysfunction and alteration of the levels of androgens. Hirsutism, increased pilification in androgen-dependent areas, is a frequent complaint and correlates with PCOS in up to 95% of cases. Women with PCOS are at greater risk for developing metabolic syndrome and cardiovascular disease. These comorbidities usually manifest with aging and there are no guidelines for diagnosing PCOS after menopause. Because of this, we have attempted to prove the hypothesis that the history of self-reported hirsutism and / or oligomenorrhea influences the calculation of risk for comorbidities after menopause (type 2 diabetes mellitus, asthma, chronic bronchitis or emphysema, osteoarthritis, stroke, Heart failure, angina or myocardial infarction, multiple sclerosis, neoplasia, and Parkinson's disease). This cross-sectional study investigated women (1057) with at least 55 years of age, post-menopausal, with no cognitive deficit and / or communication difficulty who were seen in primary care services in a municipality in the south of Brazil during the 24-month period, Through a structured questionnaire that collected self-reported data on the presence of comorbidities, reproductive history and complaint of hirsutism in menacme. A significantly higher prevalence of comorbidities was found in women with a history of hirsutism and / or oligomenorrhea [OR = 1.6 (95% CI 1.1-2.4), or = hirsutism [OR 2.0 95% CI 1.3-3.2), P = 0.004]. As well as the prevalence of stroke, angina or myocardial infarction, heart failure, chronic obstructive pulmonary disease and osteoarthritis were significantly higher (p <0.03). Therefore, the presence of hirsutism and oligomenorrhea in menacing are risk factors for comorbidities, mainly cardiovascular, these alterations are possibly associated with the presence of PCOS, so its correct diagnosis in the menacme could avoid the reduction of quality of life in senectude. Síndrome dos Ovários Policísticos (SOP) é a desordem metabólica mais frequente na população feminina, acomete 10% das mulheres em idade fértil e cuja fisiopatologia, apesar de não ser completamente conhecida, associa-se a resistência à insulina, hiperandrogenismo e alteração das gonadotropinas. O diagnóstico é de exclusão e dificultado devido aos múltiplos fenótipos encontrados, sendo fundamental a presença de disfunção menstrual e alteração dos níveis de androgênios. O hirsutismo, pilificação aumentada em áreas andrógeno-dependentes, é queixa frequente e correlaciona-se a SOP em até 95% dos casos. Mulheres portadoras de SOP tem maior risco para desenvolver síndrome metabólica e doenças cardiovasculares. Essas comorbidades costumam manifestar-se com o envelhecimento e inexistem diretrizes para diagnosticar SOP após a menopausa. Devido a isso, tentamos comprovar a hipótese de que a história de hirsutismo e/ou oligomenorreia autorrelatada na menacme influencia no cálculo do risco para comorbidades após a menopausa (diabetes mellitus tipo 2, asma, bronquite crônica ou enfisema, osteoartrite, acidente vascular cerebral, insuficiência cardíaca, angina ou infarto do miocárdio, esclerose múltipla, neoplasia e doença de Parkinson). Esse estudo transversal investigou mulheres (1057) com pelo menos 55 anos, na pós-menopausa, sem déficit cognitivo e/ou dificuldade de comunicação que foram atendidas em serviços de atenção primária de um município do sul de Brasil durante o período de 24 meses, através de um questionário estruturado que coletou dados autorrelatados da presença de comorbidades, história reprodutiva e queixa de hirsutismo na menacme. Identificou-se prevalência de comorbidades significativamente maior nas mulheres com história de hirsutismo e/ou oligomenorreia [OR = 1,6 (95% IC 1,1-2,4), p = 0,002] ou hirsutismo isolado [OR 2,0 (IC 95% 1,3-3,2), P = 0,004]. Assim como a prevalência de acidente vascular cerebral, angina ou infarto do miocárdio, insuficiência cardíaca, doença pulmonar obstrutiva crônica e osteoartrite foram significativamente maiores (p <0,03). Portanto, a presença de hirsutismo e oligomenorreia na menacme são fatores de risco para comorbidades, principalmente cardiovasculares, essas alterações são possivelmente associadas a presença de SOP, por isso seu correto diagnóstico na menacme poderia evitar a redução da qualidade de vida na senectude.

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Olorunrinu, Kikelomo. "Nigerian Women Living in The United States are More Hirsute than Those Living in Nigeria." Yale University, 2008. http://ymtdl.med.yale.edu/theses/available/etd-08232007-131346/.

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This study was to determine if there exists a difference in the rate of hirsutism in genetically similar women in two different environments. 112 Nigerian women living in the U.S.A and 70 women living in Nigeria were surveyed. All women completed a pictorial survey scoring peripheral hair growth in 6 body areas from 0 (no significant hair growth) to 4 (severe hair growth). Total hirsutism score was calculated as a sum of individual scores. The survey also included demographic data, menstrual history, and data regarding use of hormonal treatments. Statistical comparisons between groups included t-test, nonparametric tests and chi-square test. Multiple regression analysis was carried out to identify independent predictors of peripheral hair growth. Women residing in U.S.A had a 31% higher total hirsutism score than those residing in Nigeria. This difference was not related to irregular menstrual cycle. To account for possible effects of age, B.M.I and differences in tribal origin, multiple regression analysis was performed. Location (living in U.S.A vs. Nigeria) remained the strongest predictor of total hirsutism score (P=0.02); tribal origin was also significant (P=0.04), while age and B.M.I had no independent predictive value (P>0.1). It was concluded that this difference, is not explained by factors such as age, obesity and ethnic origin. We propose that this difference may be due to differences in environmental or lifestyle factors of the women.

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Neves, Erika Mendonça das. "Síndrome dos ovários policísticos: correlação dos fenótipos com as manifestações metabólicas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5139/tde-05112013-123657/.

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A síndrome dos ovários policísticos (SOP) é o distúrbio endócrino-metabólico mais frequente na menacme, com prevalência de 7 a 10 %, contribuindo com o aumento do risco cardiovascular e/ou diabetes mellitus tipo II nessas mulheres. OBJETIVOS: Identificar as características epidemiológicas e os diferentes fenótipos da SOP, a prevalência da síndrome metabólica encontrada em cada fenótipo e os fatores associados ao risco metabólico dessas pacientes. CASUÍSTICA E MÉTODO: Estudo observacional com 566 mulheres entre 14 e 39 anos portadoras de SOP, segundo o consenso de Rotterdam. O risco metabólico foi avaliado pela análise descritiva com intervalo de confiança de 95%. As variáveis quantitativas foram testadas pelo método de Shapiro-Wilk e teste não paramétrico de Mann-Whitney. Para a análise multivariada usou-se a razão de prevalências entre as diversas variáveis independentes e o desfecho risco metabólico. Identificamos os fatores associados ao risco metabólico empregando a regressão de Cox com variância robusta. RESULTADOS: Das 566 pacientes, 27,9% tinham entre 20 e 24 anos; 84,5% eram afrodescendentes; 90,6% apresentavam irregularidade menstrual; 91,8% hirsutismo; 77,7% ovários aumentados e/ou policísticos; 15,7% com pelo menos um filho; IMC elevado em 66,5%; CA superior a 88 em 51%; pressão arterial sistólica e diastólica elevadas em 38,9% e 20% das pacientes respectivamente; 7,7% intolerância a carboidratos, 40,8% de HDL-colesterol reduzido, 8,8% de triglicerídeos elevados. Encontramos risco metabólico em 21%, com predomínio dos fenótipos E (28,4%), B (25%) e A (22%). Antecedentes familiares de diabete, hipertensão arterial, câncer ginecológico e câncer não ginecológico não contribuíram, com significância estatística, para o aumento de eventos metabólicos. O acréscimo de um ano na idade elevou o risco em 5%. A cada subida de uma unidade no IMC foram adicionados 8%. A presença de hirsutismo triplicou o risco. Pacientes com pelo menos um filho apresentaram duas vezes mais síndrome metabólica do que as sem filhos. CONCLUSÕES: Foi observada maior frequência de síndrome metabólica entre os fenótipos que apresentam em comum oligoanovulação e hirsutismo (E, B e A). Em pacientes com SOP a idade, a paridade, a presença de hirsutismo e obesidade foram os fatores independentemente relacionados ao aumento do risco metabólico Polycystic ovary syndrome (PCOS) is an endocrine and metabolic disorder that is more frequent in premenopausal, affecting 7 to 10% of women, contributing to the increase of cardiovascular and/or type II diabetes mellitus risk. OBJECTIVES: To identify the epidemiological characteristics and different phenotypes of PCOS, the prevalence of metabolic syndrome found in each phenotype and metabolic risk factors associated with these patients. PATIENTS AND METHODS: Observational study of 566 women between 14 and 39 years with PCOS according to the Rotterdam criteria. The metabolic risk was assessed by descriptive analysis with a confidence interval of 95%. Quantitative variables were tested by using Shapiro-Wilk method and nonparametric Mann-Whitney test. For the multivariate analysis the prevalence ratio between several independent variables and the outcome metabolic risk were used. Factors associated with the metabolic risk were identified by using Cox regression with a robust variance. RESULTS: Of 566 patients, 27.9% were between 20 and 24 years, 84.5% were of African descents; 90.6% had oligoanovulation; 91.8% hirsutism; 77.7% enlarged ovaries and/or polycystic, 15.7% with at least one child in high BMI 66.5%, CA 88 exceeding 51%; systolic and diastolic blood pressure elevated by 38.9% and 20% of patients, respectively, 7.7% carbohydrate intolerance, 40.8% HDL-cholesterol changed, 8.8% triglyceride levels. Metabolic risk found in 21%, with a predominance of E phenotypes (28.4%), B (25%) and A (22.1%). Family history of diabetes, hypertension, gynecological cancer and gynecological cancer does not contribute with statistical significance for increased metabolic events. The one-year increase in age raised the risk by 5%. Every increase of one unit in BMI 8% were added. Presence of hirsutism tripled the risk. Patients with at least one child were twice as metabolic syndrome than those without children. CONCLUSIONS: A higher frequency of metabolic syndrome phenotypes that have in common oligoanovulation and hirsutism (E, B and A) were observed. Independently associated factors with the metabolic risk in PCOS patients were age, parity, hirsutism and obesity

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Keegan, Anna. "My secret shame : an exploratory study into the impact of perceived hirsutism in women with polycystic ovary syndrome." Thesis, University of East London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.532409.

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Curi, Daniella De Grande. "Polimorfismos do gene BMP4 em pacientes com a síndrome dos ovários policísticos." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5139/tde-24022015-090756/.

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A síndrome dos ovários policísticos (SOP) é um distúrbio endócrino complexo e heterogêneo, caracterizado por hiperandrogenismo e anovulação crônica. Dentre as manifestações clínicas do hiperandrogenismo, o hirsutismo é o mais frequente e pode estar presente em cerca de 70% das pacientes com SOP. Sabe-se que o crescimento e diferenciação do pelo são regulados por fatores locais, endócrinos, parácrinos e genéticos. No entanto, a fisiopatologia do hirsutismo ainda é pouco conhecida. O gene BMP4 (que codifica a Proteína Morfogenética Óssea-4) relaciona-se ao controle do crescimento e diferenciação do pelo, porém não há estudos sobre seu papel no hirsutismo em mulheres com síndrome dos ovários policísticos. Foram estudadas 245 mulheres, 142 SOP e 103 controles em que analisaram-se os polimorfismos rs4898820 e 538 T/C, para verificar frequências genotípicas e alélicas. Nas pacientes com SOP foi investigada a existência de associação entre esses polimorfismos e hirsutismo e parâmetros laboratoriais e clínicos. Não houve diferença significante na frequência dos polimorfismos entre os grupos. Não houve associação dos polimorfismos com hirsutismo. Quando analisados os exames laboratoriais das mulheres com SOP, houve associação do genótipo mutado do polimorfismo 538 T/C (CC) com níveis mais altos de SHBG, menores de glicemia e maior sensibilidade à insulina. Houve também associação entre os alelos mutados (CC ou TC), com menores níveis de testosterona livre. Encontrou-se diferença significante para o FSH nas portadoras do genótipo mutado para o polimorfismo rs4898820 (TT). Não houve associação dos polimorfismos com hirsutismo Polycystic ovary syndrome (PCOS) is a complex and heterogeneous endocrine disorder characterized by chronic anovulation and hiperandrogesnism. Among the clinical manifestations of hyperandrogenism, hirsutism is the most frequent and may be present in approximately 70% of patients with PCOS. It is known that the hair growth and differentiation are coordinated by local, endocrine, paracrine and genetic factors. However, the pathophysiology of hirsutism is poorly understood. BMP-4 (Bone Morphogenetic Protein-4) is a gene involved in the hair growth and differentiation, but there are no studies about its action in hirsutism in women with polycystic ovary syndrome. A total of 245 women, 142 with PCOS diagnostic and 103 control women were studied to investigate the the allelic frequency of the single nucleotide polymorfisms rs4898820 and 538 T/C in PCOS in comparison with the control group. In PCOS group, we sought to investigate a possible association between the genetic variations and the hirsutism. There were no differences for the polymorphisms between groups. There was no association between the genotypes and the presence of hirsutism in PCOS women. When the polymorphisms were analyzed in the PCOS group, those who had homozygous genotype for 538 T/C (CC) had lower levels of SHBG, lower levels of glucose and better insulin sensitivity. Mutated allele (CC or TC), were associated with lower levels of free testosterone. Those who had the mutated genotype for the polymorphism rs4898820 (TT) had higher levels of FSH

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Fernandes, Ligia Gabrielli. "Síndrome dos ovários policísticos: uma abordagem epidemiológica." Tese apresentada ao Programa de Pós-Graduação em Saúde Coletiva, como requesito parcial para obtenção do título de Doutor em Saúde Pública, 2013. http://www.repositorio.ufba.br/ri/handle/ri/12838.

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Submitted by Maria Creuza Silva (mariakreuza@yahoo.com.br) on 2013-09-04T13:46:01Z No. of bitstreams: 1 Tese. Ligia Gabrielli. 2013.pdf: 1026296 bytes, checksum: 89f63e16b88a791cbbe005081c01884e (MD5) Approved for entry into archive by Maria Creuza Silva(mariakreuza@yahoo.com.br) on 2013-09-04T13:53:08Z (GMT) No. of bitstreams: 1 Tese. Ligia Gabrielli. 2013.pdf: 1026296 bytes, checksum: 89f63e16b88a791cbbe005081c01884e (MD5) Made available in DSpace on 2013-09-04T13:53:08Z (GMT). No. of bitstreams: 1 Tese. Ligia Gabrielli. 2013.pdf: 1026296 bytes, checksum: 89f63e16b88a791cbbe005081c01884e (MD5) Previous issue date: 2013 A síndrome dos ovários policísticos (SOP) é a doença endócrina mais freqüente em mulheres com idade reprodutiva. Apresenta prevalência entre 2 e 15%, tendo sido estimada em 8,5% (IC 95%: 6,80-10,56) em Salvador, Brasil. Caracteriza-se por fenômenos relacionados à oligoovulação, hiperandrogenismo e subfertilidade, além de se constituir numa síndrome metabólica que predispõe à obesidade, diabetes mellitus tipo 2, hipertensão e dislipidemia. O diagnóstico precoce traz consigo a chance da intervenção para a prevenção das complicações. Apesar do quadro completo de fatores de risco para a doença cardiovascular (DCV), não tem sido fácil demonstrar esta associação. Muitos trabalhos têm sido realizados com resultados desconcertantes, pois ao tempo em que apontam invariavelmente para a associação da síndrome com os fatores de risco conhecidos para DCV não mostram de forma consistente a associação com a ocorrência desses eventos. A necessidade de pesquisar mulheres com SOP que se encontrem em faixa etária de risco para as DCV leva à necessidade de identificá-las na fase de sua ocorrência, que costuma ser na pós menopausa, momento em que uma parte dos critérios diagnósticos consagrados para mulheres em idade reprodutiva já não estão presentes, ou se encontram atenuados. Outro problema encontrado são as definições e padronização de métodos utilizados para a identificação dos componentes do diagnóstico, em particular para a utilização em estudos com grandes amostras. Um dos principais marcadores da SOP é o hiperandrogenismo clínico, representado predominantemente pelo hirsutismo, que costuma ser identificado através do escore de Ferriman-Gallwey, método com grandes problemas de aplicabilidade em estudos populacionais. A patogênese da SOP é ainda incerta. Alguns dados apontam para causas genéticas, com ocorrência frequente num mesmo grupo familiar, porém até o momento, nenhum padrão de herança, gene ou grupo de genes foi associado à ocorrência da síndrome de modo consistente. Exposições precoces são também aventadas, que se iniciam na vida intrauterina, passando pelo período pós-natal, infância e adolescência, o que parece configurar um acúmulo de eventos adversos que levam à morbidade na vida adulta e apontam não só para a multicausalidade, como também para a necessidade de se apropriar da perspectiva do curso de vida como modelo teórico para dar conta da sua complexidade. A quase totalidade dos estudos sobre o tema realizados no Brasil é da área clínica, observando-se uma carência absoluta de estudos epidemiológicos nacionais. O objetivo geral desta tese foi estudar a síndrome dos ovários policísticos numa perspectiva epidemiológica, possibilitando meios para sua identificação em estudos populacionais. Os objetivos específicos indicam os artigos que compõem este trabalho: a) construir e validar instrumento simplificado para a identificação de hirsutismo; b) propor e avaliar critérios plausíveis para a identificação de mulheres com SOP na pós-menopausa e c) estudar fatores associados à SOP, reconstruindo domínios que representem as diversas fases da vida e a ocorrência de comorbidades tardias. No primeiro artigo, construiu-se e validou-se questionário simplificado e autoaplicável com quatro perguntas, para identificar o hirsutismo em mulheres acima dos 35 anos, adequado para uso em larga escala e adaptável para diversos meios de aplicação, dentre eles, a internet. No segundo artigo foram propostos critérios diagnósticos para a síndrome em mulheres na pós-menopausa e pôde-se mostrar como os fenótipos resultantes identificaram mulheres com características clínicas e bioquímicas esperadas para mulheres com SOP, validando os critérios propostos com desfechos epidemiológicos prováveis. O terceiro artigo descreveu fatores sociodemográficos, reprodutivos e metabólicos associados à SOP e como eles se comportaram em relação à ocorrência da síndrome. A população de estudo foi composta por trabalhadoras da Universidade Federal da Bahia que integram a coorte do ELSA-Brasil. Todos os artigos foram realizados com os dados transversais da linha de base, efetuada de 2008 a 2010. Com este trabalho, que é a continuidade do projeto de pesquisa epidemiológica sobre o tema, que se iniciou em 2007 com o estudo de prevalência da SOP na atenção primária de Salvador, começam a ganhar corpo dados brasileiros sobre esta parcela significativa de mulheres, que apresenta riscos particulares para doenças crônicas comuns, porém de alta morbimortalidade. Salvador

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Wiltgen, Denusa. "Polimorfismos do gene da calpaína 10 (CAPN10) e associação com síndrome metabólica em pacientes com síndrome de ovários policísticos (PCOS)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/10848.

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Lundberg, Annica, and Emma Ring. "Att leva med Polycystiskt ovariesyndrom en litteraturstudie." Thesis, Malmö högskola, Fakulteten för hälsa och samhälle (HS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-24363.

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Bakgrund: Polycystiskt ovariesyndrom (PCO) är ett vanligt syndrom som många kvinnor lider av. PCO innebär att äggstockarna bildar fler folliklar (cystor) än vad som anses vara normalt samt att en hormonell obalans föreligger. PCO har en prevalens på 5-10 procent och är en vanlig endokrin avvikelse hos kvinnor i fertil ålder. Då dessa kvinnor befinner sig i hela vårdkedjan är det viktigt att som allmänsjuksköterska känna till hur denna patientgrupp upplever sin livssituation. Syfte: Syftet med denna litteraturstudie var att undersöka kvinnors upplevelser av att leva med PCO och hur det påverkade deras livskvalitet. Metod: Analys av tio vetenskapliga artiklar, varav sex av artiklarna hade en kvalitativ ansats och fyra av dem hade en kvantitativ ansats. Resultat: Analysen resulterade i fyra huvudteman: Avvikande yttre, sex och relationer, sjukvården samt självuppfattning. Bristande vård samt en generellt lägre livskvalitet sågs hos dessa kvinnor. Slutsats: Implikationer för vården blir att utveckla sin kunskap inom detta område för att på så sätt förbättra livskvaliteten för kvinnor med PCO. Bakground: Polycystic ovary syndrome (PCO) is a common syndrome that many women suffer from. PCO means that the ovary produces multiple follicles (cysts) than what is considered normal, and that a hormonal imbalance can be seen. PCO means that the ovary produces multiple follicles (cysts) than what is considered to be normal. PCO has a prevalence of 5-10 percent and is a common endocrine differential in women of childbearing age. These women are in the continuum of care, why it is important for a general nurse to know how these patients perceive their life situation. Aim: The aim of this study is to explore women's experiences of living with PCO and how it affects their quality of life. Method: Analysis of ten scientific papers, there six of the items had a qualitative approach, and four of them had a quantitative approach. Result: The analysis resulted in four main themes: Deviant exterior, sex and relationships, health and self-perception. Lack of care and a generally lower quality of life were observed in these women. Conclusion: Implications for health care will be to develop their knowledge in this area in order to improve the quality of life for women with PCO.

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Taponen, S. (Saara). "Metabolic and clinical characteristics of women with self-reported symptoms of polycystic ovary syndrome." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:9514273176.

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Abstract Oligomenorrhea (menstrual disturbances) and hirsutism (excessive growth of body hair) are typical symptoms of polycystic ovary syndrome, a common endocrine disorder with long-term health risks among fertile-age women. Associations between body size development and polycystic ovary syndrome symptoms in a cohort design (528 symptomatic and 1479 asymptomatic women) and endocrine, metabolic and clinical characteristics of women with self-reported symptoms of oligomenorrhea or hirsutism in a nested case-control design (518 cases and 1036 controls) were investigated in this general population-based study. Gynecologic ultrasonographic examinations were performed in 196 cases and 67 controls to assess the morphology of the ovaries and its relationship to biochemical and clinical parameters. The study population was derived from the Northern Finland Birth Cohort 1966, which included all births with expected birth dates in 1966 in Northern Finland and is well representative of the general female population. Polycystic ovary syndrome symptoms in adulthood were associated with obesity, particularly abdominal obesity, in adolescence and in adulthood, but not with birth weight or being small for gestational age. Hormonal changes typical of polycystic ovary syndrome, i.e. higher circulating concentrations of testosterone, luteinizing hormone (LH) and insulin and lower levels of sex hormone-binding globulin (SHBG), were detected in women with self-reported symptoms of oligomenorrhea and/or hirsutism compared with the controls. Less favorable metabolic cardiovascular disease risk factor profiles, higher body mass index (BMI), waist-hip ratio (WHR), and triglyceride and C-reactive protein (CRP) concentrations and lower high density lipoprotein cholesterol (HDL-C) levels, were detected in women with symptoms, being the most severe among women who reported both hirsutism and oligomenorrhea. Unfavorable characteristics were pronounced in the presence of overweight or obesity. Women with symptoms more often had features characteristic of polycystic ovarian morphology associated with an endocrine and clinical profile reflecting polycystic ovary syndrome. This study shows that questioning in regard to symptoms of oligomenorrhea and hirsutism is useful in detecting women at risk of polycystic ovary syndrome and associated health risks. Avoidance of being overweight is important among young women to prevent the development of insulin resistance. Systematic follow-up of women with symptoms of oligomenorrhea and hirsutism is justified for prevention and early detection of long-term health risks.

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Oppermann, Karen. "Diagnóstico etiológico do hirsutismo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1992. http://hdl.handle.net/10183/164161.

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Este trabalho foi desenvolvido com o objetivo de se identificar e caracterizar a população de hir s utismo do nosso meio. Para este mulheres fim, foi investigada uma amostra de pacientes com esta queixa. O hirsutismo pode ser uma queixa freqüente, principalmente em regiões de colonização mediterrânea, sendo esta uma característica do nosso local de trabalho (RS). O hir s utismo pode estar relacio nado a graus variados de hiper androgenismo, e manifestar-se como queixa isolada, ou como parte de um quadro clínico mais florido. Quanto a sua etiologia, pode ser decorrente de um processo neoplásico e/ou por uma disfunção ovariana ou adrenal, ou mesmo por uma hiperutilização androgênica pelo folículo piloso. Partindo-se destes conceitos iniciais, formulou-s e um protocolo de pesqu isa para caracte ri zar e definir o diagnóstico etiológico em uma amostra de mulheres hirsutas. Esta pesquisa iniciou em maio/89, em um grupo de pacientes que procuraram espontãneamente a Unidade de Endocrinolog ia Ginecológica do Serviço de Endocrinilogia do HCPA, com esta queixa . Foram analisados dados clínicos e laboratoriais de 58 mulheres hirsutas e comparados aos resultados de um grupo controle. Os exames hormonais foram processados por RIE, no laboratório de radioimunoensaio do HCPA . Os resul tados foram anal isados estatisticamente através do teste "T" de Student ou ANOVA, e da análise discriminante nesta amostra de hirsutas e de mulheres controle. Com a avaliação dos dados coletados pode-se caracteri zar a amostra de mulheres hirsutas em mulheres com hirsutisrno por disfunção ovariana (ciclos menstruais disfuncionais, níveis de andrógenos elevados, níveis normais de 170HP), separadas em ovários policísticos tipo I ou tipo II (PCOI ou II) conforme a resposta do LH ao LHRH, mulheres tardio elevados), com hiperplasia adrenal congênita níveis de 170HP basais e/ou de início estimulados e mu lheres com hirsutismo idiopático (ciclos menstruais regulares e ovulatórios e exames hormo nais no rmais). Não foi detectado nenhum caso de hirsutismo de origem tumoral . A amostra geral de hirsutas caracterizo use por terníveis mais elevados de a ndr ógenos quando comparados ao grupo controle, por ter uma média de IMC > 25kg/m2 e por ter ciclos disfuncionais em 59% dos casos. Através deste estudo, pode-se identifi car os diferent es grupos e tiológicos conforme a seguin te class ificação: hirsutismo por hiperplasia adrenal congênita de início tardio em 8, 9% dos casos, por PCO tipo! em 30,3%, por PCO tipo II em 12, 5% e hirsutismo idiopático em 48 ,2% dos casos.

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Parisis-Picavet, Nathalie Constancis Elizabeth. "Les tumeurs à cellules stéroïdes de l'ovaire." Créteil : Université de Paris-Val-de-Marne, 2004. http://doxa.scd.univ-paris12.fr:80/theses/th0232681.pdf.

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BARRERE, LEFAUCHER CHRISTINE. "A propos du traitement de l'hirsutisme feminin par la spironolactone : resultats preliminaires." Reims, 1992. http://www.theses.fr/1992REIMM008.

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Frederick, Samuel Lee Locy Robert D. "Thermotolerance in Gossypium hirsutum." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Theses/FREDERICK_SAMUEL_25.pdf.

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EWANE, LOBE EPACKA MARIELLE. "Interet du dosage du glucuronide d'androstanediol dans le diagnostic de l'hirsutisme." Lyon 1, 1990. http://www.theses.fr/1990LYO1M440.

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17

Lehle, Fredric R., and Omer K. Ahmed. "Fermentation in Cotton (Gossypium hirsutum) Seeds." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204520.

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Ethanol and acetaldehyde production by cotton seeds subjected to anoxic stress imposed by CO₂ or N₂ gas was quantified during the imbibition phase. Fermentation capacity was low in dry seeds and quickly increased during the first few hours of imbibition. In hydrated seeds, ethanol and acetaldehyde excretion following anoxic stress followed a linear trend in time. Ethanol excretion exceeded that of acetaldehyde by an order of magnitude. Similar rates of production were observed whether anoxic was imposed by either CO₂ or N₂ gas. Excreted ethanol and acetaldehyde were rapidly metabolized following alleviation of anoxic stress.

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Lécureuil, Nicole. "Méthodologie et intérêt clinique d'un dosage de testostérone-estradiol-binding globulin." Tours, 1987. http://www.theses.fr/1987TOUR3807.

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Crave, Jean-Charles. "Proteine de liaison des hormones steroides sexuelles ; role des facteurs metaboliques et nutritonnels." Lyon 1, 1990. http://www.theses.fr/1990LYO1M182.

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Local, Andrea. "Cloning of Carbonic Anhydrase from Cotton (Gossypium hirsutum L.)." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc279044/.

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Carbonic anhydrase is a ubiquitous zinc-metalloenzyme that catalyzes the interconversion of carbon dioxide and carbonate and has been found to play a wide range of roles in animals, plants and bacteria. Cotton genomic and cDNA libraries were screened for the plastidial isoform of carbonic anhydrase. The nucleotide sequences of two 1.2 Kb partial cDNA clones were determined. These clones exhibit high homology to carbonic anhydrases from other dicot plants and possess all the expected peptide motifs. For example, serine and threonine rich chloroplastic targeting peptide and conserved zinc binding residues are both present. These clones were utilized to isolate two carbonic anhydrase genes that were shown to encode different isoforms by PCR and RFLP analysis.

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Huff, Jonathan Andrew. "Glyphosate Tolerance in Roundup Ready Flex Cotton (Gossypium hirsutum)." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-04092007-153615.

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Farias, Angélica Torres Vilar de. "Crescimento e desenvolvimento do algodoeiro em função de doses de silício e ácido salicílico." Universidade Estadual da Paraíba, 2012. http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/1927.

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Made available in DSpace on 2015-09-25T12:21:28Z (GMT). No. of bitstreams: 1 PDF - Angelica Torres Vilar de Farias Parte 1.pdf: 3084992 bytes, checksum: c8267eaa6950355d73d478c31a92ef16 (MD5) Previous issue date: 2012-08-17 The herbaceous cotton (Gossypium hirsutum L. race Latifolium Hutch) is one of the top ten species domesticated by human beings. Its main product is the fiber that wears almost half of humanity. It is also a source of protein, the fifth oilseed of the world and the second of Brazil, and the third source of biodiesel in our country with excellent quality oil, which is very good for human consumption and for the production of biofuels, and good chemical stability. Among the limiting factors for the cotton plant development stands mineral nutrition considering that there is little information available for this cultivar about the use of silicon, as a beneficial element and also the use of new plant hormones, that is the case of salicylic acid, used isolated and in combination. The objective of this research to identify and quantify the isolated and in combination effects of these two products on growth and biochemical aspects of herbaceous cotton, cultivar BRS 8H, that is quite drought resistant and produces an average of excellent intrinsic quality fiber. The experiment was conducted in semi-controlled conditions (greenhouse) in Campina Grande, Paraiba, on the premises of Embrapa Algodão in 20 liters capacity vessels. It was used a completely randomized design with three replications and 16 treatments, in a 4 x 4 factorial analysis scheme, having as factor four silicon concentrations: 0; 40; 80 e 120 g L-1 and four salicylic acid concentrations: : 0; 5; 10 e 15 mM. It was measured several variables of growth, such as non-destructive analysis (leaf area, stem diameter and plant height) at various periods of the cycle of the plant besides dry weight, leaf area ratio, leaf weight ratio, specific leaf area and biochemical aspects (total chlorophyll content and peroxidase activity). The cotton plant cv. BRS 8H when grown under foliar application of silicon (SI), and salicylic acid (SA) isolated and in combination, showed significant changes in growth and biochemical aspects, which highlights the need for further research with larger amplitude range of these factors order to obtain more conclusive results for the tested variables. O algodoeiro herbáceo (Gossypium hirsutum L. raça Latifolium Hutch.) é uma das dez principais espécies domesticadas pelo homem, seu produto principal é a fibra que veste quase metade da humanidade. É ainda fonte de proteína, a quinta oleaginosa do mundo e a segunda do Brasil, e a terceira fonte de biodiesel do nosso país, tendo um óleo de excelente qualidade, muito bom para a alimentação humana e para a produção de biocombustíveis, sendo de boa estabilidade química. Dentre os fatores limitantes para o desenvolvimento do algodoeiro destaca-se a nutrição mineral, tendo em vista que são poucas as informações disponíveis para esta cultivar sobre o uso do silício, como elemento benéfico e também o uso de novos hormônios de plantas, caso do ácido salicílico, utilizados isolados e em conjunto, objetivou-se com este trabalho de pesquisa verificar e quantificar os efeitos isolados e conjuntos destes dois produtos no crescimento e aspectos bioquímicos do algodoeiro herbáceo, cultivar BRS 8H, que é bem resistente a seca e produz fibra média de excelente qualidade intrínseca. O experimento foi conduzido em condições semicontroladas (casa de vegetação), em Campina Grande, PB, nas dependências da sede da Embrapa Algodão em vasos de 20 litros de capacidade. Foi utilizado o delineamento inteiramente casualizado, com três repetições e 16 tratamentos, em esquema de análise fatorial 4 x 4, sendo os fatores quatro concentrações de silício: 0; 40; 80 e 120 g L-1 e quatro concentrações de ácido salicílico: 0; 5; 10 e 15 mM. Foram medidas diversas variáveis do crescimento, tais como análise não destrutiva (área foliar, diâmetro do caule e altura de planta) em vários períodos do ciclo da planta, além de massa seca, razão de área foliar, razão de peso foliar, área foliar específica e aspectos bioquímicos (teor de clorofila total e atividade da peroxidase). O algodoeiro cv. BRS 8H quando cultivado sob a aplicação foliar do silício (SI) e do ácido salicílico (AS) isolados e conjuntamente, apresentou alterações significativas no crescimento e em aspectos bioquímicos, o que evidencia a necessidade do desenvolvimento de novas pesquisas com maior faixa de amplitude desses fatores para que se obtenham resultados mais conclusivos para as variáveis testadas.

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Sayegh, Majd. "La résistance du cotonnier Gossypium hirsutum à la bactériose causée par Xanthomonas campestris pathovar malvacearum : rôle du gène GhLOX1 dans la réaction hypersensible." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL077N/document.

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La RH est une réaction de défense. L’interaction entre G.hirsutum et Xcm repose sur le concept gène-à-gène. L’infection du cultivar Réba B50 possédant les gènes R B2B3 par Xcm18 conduit à une RH associée à une activité LOX, responsable de la peroxydation des lipides, et à la transcription du GhLOX1. Premièrement, 6 génotypes de G.hirsutum contenant divers gènes R ont été retenus pour analyser la variabilité de la réponse LOX suite à l’infection par Xcm1, 18 ou 20. Notre étude a porté sur plusieurs critères, le phénotype, la perte en eau, l’activité LOX et la transcription du GhLOX1. Les résultats montrent une variabilité du phénotype RH en fonction des sources de résistances. Pour chaque type d’interaction incompatible, l’activité LOX et la transcription du GhLOX1 révèlent une augmentation significative corrélée à l’apparition des symptômes RH et à la diminution de la teneur en eau. La réponse LOX est conservée lors de la RH, quelle que soit la race de Xcm ou le génotype. Le GhLOX1 considère comme un marqueur moléculaire de la résistance spécifique du cotonnier à Xcm. Deuxièmement, le rôle du GhLOX1dans la mise en place de la RH en analysant sa fonction potentielle par surexpression. Des cotylédons ont été transformés avec la séquence codante GhLOX1 fusionnée au CaMV35S. Ces cotylédons transformés ont révélé (i) une activité LOX significativement supérieure à celle des cotylédons témoins montrant que le GhLOX1 code pour une protéine active et (ii) un phénotype sans modifications apparentes par rapport à celui des cotylédons non transformées, sauf dans certains contextes d’interactions cotonnier/Xcm où la surexpression de ce gène induit l’apparition de symptômes de type RH. L’effet de l’agro-infiltration sur l’expression de certains gènes pendant la transformation a révélé l’induction précoce et non spécifique de l’expression de gènes de défense. Ces travaux constituent une première étape dans l’analyse fonctionnelle du GhLOX1 dans la résistance spécifique du cotonnier à Xcm The HR is a defense strategy. The interaction between G.hirsutum and Xcm is governed by the gene-for-gene concept. The infection of the cultivar Reba B50 that contains B2B3 R genes by race Xcm18 leads to a HR associated with a LOX activity response involved in peroxidation of lipids and with transcription of GhLOX1. First, 6 genotypes of G. hirsutum containing various R genes were tested to analyze the variability of the LOX response following the infection by Xcm1, 18 or 20. Several criteria were investigated including the phenotype, the water loss, the LOX activity and GhLOX1 transcription. The results showed variation in HR phenotype according to the tested R genes. For each type of the incompatible interaction, LOX activity and transcription of GhLOX1 were always significantly increased paralleled the apparition of the HR symptoms and the decrease in the water content. LOX response (enzymatic activity and GhLOX1 transcription) is associated with HR whatever the genotype of both Xcm races and cotton plant. Thus, the GhLOX1 consider as a molecular marker of the cotton specific resistance to Xcm. Second, the role of the GhLOX1 gene in the execution of the cotton HR to Xcm by analyzing its possible function by over-expression, the cotyledons were transformed with the GhLOX1 coding sequence fused to the CaMV35S. These transformed cotyledons revealed (i) a LOX activity significantly higher than that detected in the control, showing that the GhLOX1 encodes for an active protein and (ii) that the phenotype of these cotyledons was indistinguishable as compared to the non transformed cotyledons, except when the HR symptoms were induced in some GhLOX1-over-expressed cotyledons. The effect of agro-infiltration on expression of some plant genes during the transformation revealed early and nonspecific induction of the expression of defense genes. This work constitutes a preliminary investigation for the functional analysis of the GhLOX1 in order to assess its role in the cotton specific resistance to Xcm

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Chabraoui, Layachi. "Dosage spécifique de la DHA dans le sang par CPG : applications à l'étude de la signification physiopathologique de la DHA et de son sulfate chez l'homme." Lyon 1, 1987. http://www.theses.fr/1987LYO1W253.

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25

Furtado, Roselayne Ferro. "Cultivares de algodoeiro herbÃceo submetidas Ã infestaÃÃo natural de pragas." Universidade Federal do CearÃ, 2006. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1318.

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As cultivares de algodoeiro apresentam caracterÃsticas morfolÃgicas e quÃmicas diferentes que podem influenciar a susceptibilidade Ãs pragas. Neste contexto, esse trabalho teve o objetivo de comparar a suscetibilidade das cultivares de algodoeiro herbÃceo BRS Antares, BRS 201, BRS Facual, BRS IpÃ, BRS ITA 96 BRS Sucupira, CNPA 8H, CNPA ITA 90, CNPA Precoce 3 e DeltaOpal Ãs pragas agrÃcolas, nas condiÃÃes de Fortaleza, CE. No experimento em campo, o delineamento experimental utilizado foi o de blocos casualizados, com trÃs repetiÃÃes para as plantas submetidas Ã infestaÃÃo natural e uma repetiÃÃo para as plantas com controle da infestaÃÃo. Cada parcela constituiu-se de trÃs linhas de trÃs metros, sendo a Ãrea Ãtil composta somente da linha central constituÃda por treze plantas. Para o monitoramento das pragas fez-se a cada sete dias observaÃÃes em campo. Na InfestaÃÃo por cochonilha (Planococcus sp.) e pulgÃo (Aphis gossypii) anotou-se o nÃmero de plantas infestadas quando essas apresentavam pelo menos uma colÃnia da espÃcie. Para o ataque de besouro-creme (Costalimaita ferruginea) anotou-se o nÃmero de plantas que apresentavam dano ≥ 10% do nÃmero total de folhas. Na infestaÃÃo por lagarta-rosada (Pectinophora gossypiella) anotou-se o nÃmero de plantas atacadas. Foram consideradas as seguintes caracterÃsticas agronÃmicas: (a) altura de inserÃÃo do primeiro ramo frutÃfero, (b) nÃmero de nÃs atÃ o primeiro ramo frutÃfero, (c) altura de plantas, (d) nÃmero de ramos frutÃferos por planta, (e) nÃmero de capulhos por planta, (f) dias para abertura da primeira flor, (g) dias para abertura do primeiro capulho, (h) peso mÃdio do capulho, (i) percentagem de fibra, (j) peso de 100 sementes, (l) precocidade da colheita e (m) produÃÃo. No experimento de casa-de-vegetaÃÃo, plantas das dez cultivares foram infestadas apÃs dezesseis dias de germinaÃÃo com cinco pulgÃes adultos. A contagem do nÃmero de adultos/planta foi realizada apÃs vinte e quatro horas de infestaÃÃo e a segunda avaliaÃÃo referente ao nÃmero de ninfas e de adultos/planta foi feita decorridos seis dias da instalaÃÃo do experimento. O delineamento experimental utilizado foi o inteiramente casualizado com dez tratamentos e seis repetiÃÃes. As pragas cochonilha, pulgÃo e besouro-creme nÃo demonstraram diferenÃa na preferÃncia das cultivares. A infestaÃÃo pela lagarta-rosada foi maior nas cultivares: BRS Antares, CNPA Precoce 3 e DeltaOpal. Foram encontradas reduÃÃes significativas em relaÃÃo ao controle para as seguintes caracterÃsticas: altura de inserÃÃo do primeiro ramo frutÃfero, altura das plantas, produÃÃo, precocidade e peso mÃdio dos capulhos. Considerando a infestaÃÃo das pragas e o rendimento de fibra na produÃÃo total entre as plantas infestadas, verificou-se que a cultivar CNPA Precoce 3 e CNPA ITA 90 apresentaram valores inferior e superior Ãs outras cultivares, respectivamente. Na infestaÃÃo artificial feita com os pulgÃes, nÃo houve diferenÃa significativa entre as cultivares, as quais apresentaram em mÃdia 4,06 adultos apÃs 24 horas de infestaÃÃo, 7,76 e 62,91 ninfas e adultos apÃs seis dias de infestaÃÃo, respectivamente. Pode-se concluir que a CNPA ITA 90 foi a cultivar com melhor desempenho nesta pesquisa em frente Ã susceptibilidade Ãs pragas. The cotton cultivars have different morphological and chemical characteristics that may influence the susceptibility of the plants to pests. The objective of this work was to compare the susceptibility of the Upland cotton cultivars BRS Antares, BRS 201, BRS Facual, BRS IpÃ, BRS ITA 96, BRS Sucupira, CNPA 8 H, CNPA ITA 90, CNPA Precoce 3 and DeltaOpal to agricultural pests in the conditions of Fortaleza-CearÃ, Brazil. In field tests, the experimental design was a completely randomized block with three replications for the plants submitted to natural infestation and one repetition for the plants with control of the infestation. Each experimental unit had three rows with three meters long. The area observation was composed by the central row with thirteen plants. The evaluations of the infestations were made across observations in the field ever each seven days. The number of plants infested by mealybug (Planococcus sp.) and aphid (Aphis gossypii) was recorded each seven days when the plants had at least one colony of the species. The number of plants infested by yellow beetle (Costalimaita ferruginea) was recorded when the plants had at least 10% or more leaves damaged. In the infestation for pink bollworm (Pectinophora gossypiella) it was recorded the number of attacked plants. The following agronomic characteristics were considered: (a) first fruiting branch height, (b) number of nodes for the first fruiting branch, (c) plant height, (d) number of fruiting branches/plant, (e) number of boll/plant, (f) days of first flower open, (g) days of first boll open, (h) average of boll weight, (i) fiber percentage, (j) 100 seeds weight, (l) earliness and (m) yield. In greenhouse test, the plants of the ten cultivars were infested with six adult aphids after six days of germination. The number of adults/plant was recorded twenty four hours after infestation and the number of ninphs and adults/plant was also recorded six days after beginning of the experiment. The experimental design was a completely randomized with six replication of each cultivar. There were no significant differences among the cultivars damaged by Planococcus sp, A. gossypii, C. ferruginea. The cultivars BRS Antares, CNPA Precoce 3 and DeltaOpal were more infested by P. gossypiella than the other cultivars. There were significant differences among infested plants and control plants for the following characters: first fruiting branch height, plant height, earliness, yield and average of boll weight. CNPA Precoce 3 yielded less fibers and CNPA ITA 90 had the highest fiber yield. The greenhouse results indicated that there were no significant differences among the cultivars which showed an average of 4,06 adults twenty four hours after infestation and also 7,76 and 62,91 ninphs and adults respectively, six days after the infestation. CNPA ITA 90 cultivar was the one with smaller susceptibility to pests.

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Melero, Mariana Moreira [UNESP]. "Aplicação de subdoses dos herbicidas glyphosate, 2,4-d e paraquat em algodoeiro." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138225.

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Submitted by Mariana Moreira Melero null (marianamelero@gmail.com) on 2016-05-02T15:13:06Z No. of bitstreams: 1 Mestrado_Mariana.pdf: 1132056 bytes, checksum: 67c296d4c37e6e143ec6bc3787d4d140 (MD5) Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-05-04T15:01:47Z (GMT) No. of bitstreams: 1 melero_mm_me_ilha.pdf: 1132056 bytes, checksum: 67c296d4c37e6e143ec6bc3787d4d140 (MD5) Made available in DSpace on 2016-05-04T15:01:47Z (GMT). No. of bitstreams: 1 melero_mm_me_ilha.pdf: 1132056 bytes, checksum: 67c296d4c37e6e143ec6bc3787d4d140 (MD5) Previous issue date: 2016-03-02 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) O Brasil encontra-se entre os maiores produtores mundiais de algodão. O objetivo deste trabalho foi verificar os efeitos da aplicação de subdoses dos herbicidas glyphosate, 2,4-D e paraquat em algodoeiro em condições de campo. Nos três anos agrícolas estudados (2010/2011, 2011/2012 e 2013/2014), foram instalados três ensaios, em cada ano, na Fazenda de Ensino, Pesquisa e Extensão, da Faculdade de Engenharia – Unesp, Campus de Ilha Solteira. O delineamento experimental empregado foi o de blocos ao acaso, com 6 tratamentos e 4 repetições, totalizando 24 parcelas para cada um dos ensaios. No primeiro ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida glyphosate, sendo: 0,0 (testemunha); 26,0; 52,0; 78,0; 104,0; e 130,0 g e.a. ha- 1; no segundo ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida 2,4-D, sendo: 0,0 (testemunha); 0,68; 1,36; 2,04; 2,72; e 3,40 g e.a. ha-1; E no terceiro ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida paraquat, sendo: 0,0 (testemunha); 4,8; 9,6; 14,4; 19,6; e 24,0 g i.a. ha-1. Para todos os ensaios, os produtos foram aplicados quando a cultura se encontrava no estádio B4. Observa-se que a produtividade de algodão em caroço aumentou até a subdose de 52 g e.a. glyphosate ha-1 no ano de 2010/11, não sendo observado tal efeito no ano 2011/12 e para o ano 2013/2014, houve um aumento de produção, porém não houve diferença estatística. No segundo ensaio, não houve diminuição na produtividade de algodão em caroço nos três anos de pesquisa e, no terceiro ensaio, a produtividade não sofreu interferência da aplicação, nos dois primeiros anos, para o terceiro ano, o paraquat apresentou resultados estatisticamente significativos, sendo a dosagem 24 g i. a. ha-1 a que apresentou maior incremento na produção em relação à testemunha. The Brazil is among the largest producers of cotton. The objective of this study was to evaluate the effects of doses of application of glyphosate herbicide, 2,4-D and paraquat in cotton under field conditions. For all three crop years (2010/2011, 2011/2012 and 2013/2014), three essays have been installed and the experimental design was the randomized blocks, with 6 treatments and 4 repetitions, totaling 24 plots for each the tests. In the first experiment, the treatments were a combination of doses of glyphosate, as follows: 0.0 (control); 26.0; 52.0; 78.0; 104.0; and 130.0 g a.e. ha-1; in the second trial, the treatments consisted of the application of 2,4-D herbicide doses, as follows: 0.0 (control); 0.68; 1.36; 2.04; 2.72; and 3.40 g a.e. ha-1; And in the third test, the treatments were a combination of doses of the herbicide paraquat, as follows: 0.0 (control); 4.8; 9.6; 14.4; 19.6; and 24.0 g a.i. ha-1. The cotton productivity in core sub-dose increased to 52 g a.e glyphosate ha-1 in the year 2010/11, not being observed this effect in the year 2011/12 and for the year 2013/2014, an increase of production, but there was no statistical difference. In the second trial , there was no decrease in cotton productivity in seed in the three years of research and, the third test, productivity did not suffer application of interference in the first two years of study, for the third year, paraquat showed statistically significant results, the dosage being 24 g a.i.. ha-1 presented the highest increase in production compared to the control. CAPES: 157840-1

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Melero, Mariana Moreira. "Aplicação de subdoses dos herbicidas glyphosate, 2,4-d e paraquat em algodoeiro /." Ilha Solteira, 2016. http://hdl.handle.net/11449/138225.

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Orientador: Enes Furlani Junior Resumo: O Brasil encontra-se entre os maiores produtores mundiais de algodão. O objetivo deste trabalho foi verificar os efeitos da aplicação de subdoses dos herbicidas glyphosate, 2,4-D e paraquat em algodoeiro em condições de campo. Nos três anos agrícolas estudados (2010/2011, 2011/2012 e 2013/2014), foram instalados três ensaios, em cada ano, na Fazenda de Ensino, Pesquisa e Extensão, da Faculdade de Engenharia – Unesp, Campus de Ilha Solteira. O delineamento experimental empregado foi o de blocos ao acaso, com 6 tratamentos e 4 repetições, totalizando 24 parcelas para cada um dos ensaios. No primeiro ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida glyphosate, sendo: 0,0 (testemunha); 26,0; 52,0; 78,0; 104,0; e 130,0 g e.a. ha- 1; no segundo ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida 2,4-D, sendo: 0,0 (testemunha); 0,68; 1,36; 2,04; 2,72; e 3,40 g e.a. ha-1; E no terceiro ensaio, os tratamentos foram constituídos pela aplicação das subdoses do herbicida paraquat, sendo: 0,0 (testemunha); 4,8; 9,6; 14,4; 19,6; e 24,0 g i.a. ha-1. Para todos os ensaios, os produtos foram aplicados quando a cultura se encontrava no estádio B4. Observa-se que a produtividade de algodão em caroço aumentou até a subdose de 52 g e.a. glyphosate ha-1 no ano de 2010/11, não sendo observado tal efeito no ano 2011/12 e para o ano 2013/2014, houve um aumento de produção, porém não houve diferença estatística. No segundo ensaio, não... (Resumo completo, clicar acesso eletrônico abaixo) Abstract: The Brazil is among the largest producers of cotton. The objective of this study was to evaluate the effects of doses of application of glyphosate herbicide, 2,4-D and paraquat in cotton under field conditions. For all three crop years (2010/2011, 2011/2012 and 2013/2014), three essays have been installed and the experimental design was the randomized blocks, with 6 treatments and 4 repetitions, totaling 24 plots for each the tests. In the first experiment, the treatments were a combination of doses of glyphosate, as follows: 0.0 (control); 26.0; 52.0; 78.0; 104.0; and 130.0 g a.e. ha-1; in the second trial, the treatments consisted of the application of 2,4-D herbicide doses, as follows: 0.0 (control); 0.68; 1.36; 2.04; 2.72; and 3.40 g a.e. ha-1; And in the third test, the treatments were a combination of doses of the herbicide paraquat, as follows: 0.0 (control); 4.8; 9.6; 14.4; 19.6; and 24.0 g a.i. ha-1. The cotton productivity in core sub-dose increased to 52 g a.e glyphosate ha-1 in the year 2010/11, not being observed this effect in the year 2011/12 and for the year 2013/2014, an increase of production, but there was no statistical difference. In the second trial , there was no decrease in cotton productivity in seed in the three years of research and, the third test, productivity did not suffer application of interference in the first two years of study, for the third year, paraquat showed statistically significant results, the dosage being 24 g a.i.. ha-1 presente... (Complete abstract click electronic access below) Mestre

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28

Justi, Maria Marta [UNESP]. "Cloreto de Mepiquat em cultivares de algodoeiro (Gossypium hirsutum L.)." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/105176.

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Made available in DSpace on 2014-06-11T19:33:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-18Bitstream added on 2014-06-13T19:44:33Z : No. of bitstreams: 1 justi_mm_dr_jabo.pdf: 497881 bytes, checksum: 84f3db860aba3b676cb265a4612b41d8 (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Com o objetivo de avaliar o efeito de doses de cloreto de mepiquat em cultivares de algodão herbáceo, foi conduzido um experimento no ano agrícola de 2002/2003, na Fazenda de Ensino e Pesquisa da FEIS/UNESP, localizada no município de Selvíria (MS). O delineamento experimental utilizado foi o de blocos ao acaso, com parcelas subdivididas, e quatro repetições. Nas parcelas foram estudados quatro cultivares de algodão (Coodetec 401, IAC 24, DeltaOpal e Deltapine Acala 90) e nas subparcelas, três doses de cloreto de mepiquat (0,0; 50,0 e 100,0 g i.a.ha-1). As parcelas experimentais constituíram-se de seis linhas com 10 m de comprimento e 0,90 m de espaçamento entrelinhas, sendo consideradas úteis as quatro linhas centrais. Foram determinados, em dez plantas de cada parcela, a altura das plantas e o diâmetro do caule. O número de nós no caule, número de ramos e de capulhos por planta foi obtido em cinco plantas amostradas de cada parcela. A produção de algodão em caroço foi determinada através da colheita dos capulhos em quatro metros de cada uma das duas linhas centrais. Amostras de 20 capulhos de cada parcela foram utilizadas para a obtenção da massa média de um capulho, massa de 100 sementes, porcentagem de fibra e características tecnológicas da fibra. A análise de crescimento foi feita determinando-se, a cada 14 dias, a área foliar e a massa seca acumulada nos diferentes órgãos da planta. A partir desses dados foram calculados a área foliar total, razão de área foliar, área foliar específica, razão de massa de folhas, taxa de crescimento relativo e taxa assimilatória líquida. Considerando-se 100% a massa seca total, determinou-se a distribuição em porcentagem da massa seca entre as diferentes estruturas da planta... The experiment was conducted with the objective of evaluating the effect of doses of mepiquat chloride in cotton cultivars in the agricultural year of 2002/2003, at Teaching and Research Farm of FEIS/UNESP, located in Selvíria, MS, Brazil. The experimental design was complete blocks in split-plot arrangement and four replications. In the plots four cotton cultivars (Coodetec 401, IAC 24, DeltaOpal and Deltapine Acala 90) were studied and in the subplots, three doses of mepiquat chloride (0,0; 50,0 and 100,0 g i.a.ha-1). The experimental plots had six rows with 10 m of length and 0,90 m between rows, being considered useful the central four rows. The height of the plants and the diameter of the stem were measured in ten plants in each plot. The number of nodes in the stem, number of branches and of fruits per plant were obtained in five plants collected from each plot. The cotton yield was determined through the harvested fruits of the two central rows. Samples of 20 fruits of each plot were used to obtain the average mass of one fruit, mass of 100 seeds, fiber percentage and technological characteristics of the fiber. The growth analysis was performed by determining, every 14 days, the leaf area and the dry mass accumulated in the different organs of the plant. From those data, total leaf area, leaf area ratio, specific leaf area, ratio of leaf mass, relative growth rate and net assimilation rate, were calculated. Considering the total dry mass as 100%, the distribution, in percentage, of the dry mass among the different structures of the plant was determined. The obtained results allowed to conclude that 50,0 g i.a.ha-1 of mepiquat chloride caused minor height of the plants in the Coodetec 401, DeltaOpal and Deltapine Acala 90 cultivars while, for 24 IAC the dose of 100,0 g i.a.ha-1 was the best... (Complete abstract, click eletronic address below)

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29

Baloch, Gul Muhammad M. "Cell-bound phosphatase activity in cotton (Gossypium hirsutum L.) roots." Thesis, Durham University, 1995. http://etheses.dur.ac.uk/5128/.

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A study was made of phosphorus nutrition in cotton cultivars derived from Pakistan with particular reference to phosphatase activity. Cultivars used were Qalandri, Rehmani, Reshami and TH-3/83; Qalandri was used for most of the phosphatase characteristic studies, since this cultivar exhibited the highest germination percentage and seedling establishment. Investigations of soil parameters from cotton growing region of Pakistan were also carried out. Soil pH was above 8.0 in all sites studied. Soil organic component levels were very variable between sites and within sites at different depths. Soil potassium was found to be at levels regarded as being sufficient for sustaining plant growth at all sites. However, levels of combined nitrogen and inorganic phosphate were in the range of values which could be regarded as being limiting to plant growth. The importance of phosphatase in the mobilization of organic phosphorus was therefore apparent. Phosphomonoesterase (PMEase) activity, assayed using two substrates p- nitrophenyl phosphate (pNPP) and 4-methylumbelliferyl phosphate (4-MUP), was investigated and was found associated with roots of hydroponically-grown seedlings. Staining studies indicated that the enzymes were present in the cell wall. Phosphodiesterase activity was also detected in roots, using bis-pNPP as the substrate. PMEase activity was found to have its greatest activity at pH values between 4.0 and 6.0 for all cultivars. In cv Qalandri the optimum pH for PMEase activity was 5 .5 and the optimum temperature was 55 C when assays were incubated over a 1h period using pNPP or 4-MUP as the substrate. Levels of activity were higher using pNPP than with 4-MUP, but an absolute direct comparison could not be made since the concentrations of the individual substrates used were different. Plants grown in phosphate-limitation conditions showed enhanced PMEase activity. Enhancement of PMEase activity was associated with the levels of phosphate in the plant growth nutrient solution rather than with those in the plant itself This activity was highest in 19-day old seedlings, under the conditions of growth employed here. A comparison between cultivars showed some differences in the level of PMEase activity and in the specific pH optimum for enzyme activity. Limitation of combined nitrogen to seedling also resulted m enhanced PMEase even when plants were under phosphate-sufficient conditions. A similar effect of potassium-limitation was also found and this was associated with reduced uptake of phosphate into the seedlings. No effect of magnesium-limitation on PMEase activity was found. A comparison was also made with other plants; cotton. Primula farinosa, rice, wheat and algae. All had associated phosphatase activity, with cotton showing significantly higher root acid phosphatase activity than the other higher plant species. Acidic phosphatase activity was found in the alga Drapamaldia whilst Stigeoclonium had alkaline phosphatase.

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Justi, Maria Marta. "Cloreto de Mepiquat em cultivares de algodoeiro (Gossypium hirsutum L.) /." Jaboticabal : [s.n.], 2005. http://hdl.handle.net/11449/105176.

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Orientador: Izabel Cristina Leite Banca: Luiz Henrique Carvalho Banca: Paulo Roberto de Camargo e Castro Banca: Antonio César Bolonhezi Banca: Manoel Luiz Ferreira Athayde Resumo: Com o objetivo de avaliar o efeito de doses de cloreto de mepiquat em cultivares de algodão herbáceo, foi conduzido um experimento no ano agrícola de 2002/2003, na Fazenda de Ensino e Pesquisa da FEIS/UNESP, localizada no município de Selvíria (MS). O delineamento experimental utilizado foi o de blocos ao acaso, com parcelas subdivididas, e quatro repetições. Nas parcelas foram estudados quatro cultivares de algodão (Coodetec 401, IAC 24, DeltaOpal e Deltapine Acala 90) e nas subparcelas, três doses de cloreto de mepiquat (0,0; 50,0 e 100,0 g i.a.ha-1). As parcelas experimentais constituíram-se de seis linhas com 10 m de comprimento e 0,90 m de espaçamento entrelinhas, sendo consideradas úteis as quatro linhas centrais. Foram determinados, em dez plantas de cada parcela, a altura das plantas e o diâmetro do caule. O número de nós no caule, número de ramos e de capulhos por planta foi obtido em cinco plantas amostradas de cada parcela. A produção de algodão em caroço foi determinada através da colheita dos capulhos em quatro metros de cada uma das duas linhas centrais. Amostras de 20 capulhos de cada parcela foram utilizadas para a obtenção da massa média de um capulho, massa de 100 sementes, porcentagem de fibra e características tecnológicas da fibra. A análise de crescimento foi feita determinando-se, a cada 14 dias, a área foliar e a massa seca acumulada nos diferentes órgãos da planta. A partir desses dados foram calculados a área foliar total, razão de área foliar, área foliar específica, razão de massa de folhas, taxa de crescimento relativo e taxa assimilatória líquida. Considerando-se 100% a massa seca total, determinou-se a distribuição em porcentagem da massa seca entre as diferentes estruturas da planta... (Resumo completo, clicar no acesso eletrônico abaixo) Abstract: The experiment was conducted with the objective of evaluating the effect of doses of mepiquat chloride in cotton cultivars in the agricultural year of 2002/2003, at Teaching and Research Farm of FEIS/UNESP, located in Selvíria, MS, Brazil. The experimental design was complete blocks in split-plot arrangement and four replications. In the plots four cotton cultivars (Coodetec 401, IAC 24, DeltaOpal and Deltapine Acala 90) were studied and in the subplots, three doses of mepiquat chloride (0,0; 50,0 and 100,0 g i.a.ha-1). The experimental plots had six rows with 10 m of length and 0,90 m between rows, being considered useful the central four rows. The height of the plants and the diameter of the stem were measured in ten plants in each plot. The number of nodes in the stem, number of branches and of fruits per plant were obtained in five plants collected from each plot. The cotton yield was determined through the harvested fruits of the two central rows. Samples of 20 fruits of each plot were used to obtain the average mass of one fruit, mass of 100 seeds, fiber percentage and technological characteristics of the fiber. The growth analysis was performed by determining, every 14 days, the leaf area and the dry mass accumulated in the different organs of the plant. From those data, total leaf area, leaf area ratio, specific leaf area, ratio of leaf mass, relative growth rate and net assimilation rate, were calculated. Considering the total dry mass as 100%, the distribution, in percentage, of the dry mass among the different structures of the plant was determined. The obtained results allowed to conclude that 50,0 g i.a.ha-1 of mepiquat chloride caused minor height of the plants in the Coodetec 401, DeltaOpal and Deltapine Acala 90 cultivars while, for 24 IAC the dose of 100,0 g i.a.ha-1 was the best... (Complete abstract, click eletronic address below) Doutor

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31

Settle, Carroll Eugene. "Characterization of the crumpled-mottled mutation in Gossypium hirsutum L." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186476.

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Of the 62 chromosome translocations in Gossypium hirsutum that have been isolated, made homozygous, identified as to the chromosomes involved, and maintained as homozygous tester lines, only T8-12 is phenotypically abnormal. Homozygotes are dwarf with a mutant "crumpled-mottled" phenotype that includes negligible fertility in field-grown plants; heterozygotes have a more normal morphology and variable fertility. The mutation has been reported to be tightly linked with the translocation and has never been separated from it. Comparative pollen viability, quantitative morphological measurements, and segregation data were used to dissociate the mutant phenotype from the T8-12 breakpoint--and from the mimic mutant, Crp. The T8-12 breakpoint was also demonstrated to be independent of the semilethal locus Lf on chromosome 12. Homozygous T8-12 and Crp individuals were shown to be morphological, but not functional, equivalents. Heterozygous and homozygous Crp plants produced essentially normal pollen; T8-12 heterozygotes had significantly reduced mean pollen viability scores. Mean bracteole measures were significantly different between T8-12 and Crp heterozygotes. The fluorescein diacetate-based fluorochrome reaction identified both chromosomal and genic effects on pollen viability in this study; the potential usefulness of the FCR method was thus extended to the level of single mutant gene effects.

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Lehle, Fredric R. "Fermentation as an Estimator of Cotton (Gossypium hirsutum) Seed Vigor." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204533.

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Anoxic -induced fermentation was evaluated as a potential cotton seed vigor test. Seed samples from a single seed lot were subjected to accelerated aging for different durations to create five classes of seeds on the basis of vigor. The ethanol and acetaldehyde excreted from seeds from each class during brief periods of anoxia was quantified by gas-liquid-chromatography. Ethanol and acetaldehyde production during anoxia was negatively correlated with standard germination test results of all seed samples receiving accelerated aging. The fermentation capacity of hydrated cotton seeds remained intact at imbibition temperatures, which significantly reduced radicle growth.

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Saka, Kamel. "REGENERATION OF COTTON (GOSSYPIUM HIRSUTUM L.) CALLUS PROTOPLASTS TO MACROCALLI." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275376.

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34

Boutelier, Elisabeth. "Effet du chlorure de sodium sur la physiologie du cotonnier, Gossypium hirsutum L var. Bou. Son rôle dans l'acquisition de la résistance à la sécheresse." Paris 6, 1986. http://www.theses.fr/1986PA066453.

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35

Crave, Jean-Charles. "Régulation in vivo et in vitro de la synthèse de la sex steroid-binding protein (SBP) : rôles de l'insuline et de l'insulin-like growth factor-I (IGF-I)." Lyon 1, 1996. http://www.theses.fr/1995LYO1T148.

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MARISSAL, CARBONNIER CATHERINE. "Depistage des heterozygotes pour le bloc de la 21 hydroxylase dans une population de femmes adultes hirsutes." Lille 2, 1988. http://www.theses.fr/1988LIL2M001.

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37

Smith, Chad Lee. "Auxin herbicide effects on glyphosate efficacy and cotton (Gossypium hirsutum) yield." Thesis, Mississippi State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10141708.

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Field, greenhouse and laboratory experiments were implemented to investigate the effects of auxin herbicides on growth and yield of cotton in glyphosate based systems. Field experiments evaluated the effect of rate and timing of dicamba or 2,4-D exposure when applied in glyphosate-resistant cotton. Increasing rates of either dicamba or 2,4-D resulted in increased injury and yield reductions. Initial injury symptomology was similar for cotton exposed at vegetative and reproductive stages. When cotton was exposed to auxin herbicides during vegetative growth, injury increased with time, while foliar injury during reproductive growth was stagnant and often decreased with time. Subsequently, the strongest correlations to yield loss and injury were from later evaluations of vegetative timings. Recovery from injury due to auxin herbicide exposure was dependent upon favorable environmental conditions; however, recovery was often superficial and masked significant yield loss. Greenhouse studies evaluated the impact of the diglycolamine dicamba salt on the movement of 14C radio-labeled potassium salt glyphosate in barnyardgrass and johnsongrass. Increasing glyphosate rate increased total absorption of glyphosate in both species. Total absorption of glyphosate was not impacted by the presence of dicamba, for either johnsongrass or barnyardgrass. Dicamba did not consistently alter the translocation of glyphosate in johnsongrass; however, dicamba did reduce glyphosate translocation in barnyardgrass. Total amount of translocated glyphosate was 2.6 to 4.6% and 3.8 to 6.8% of applied in barnyardgrass and johnsongrass, respectively. Reduced translocation in barnyardgrass was a result of increased glyphosate accumulation in the distal portion of the treated leaf. Increasing the rate of glyphosate did overcome the dicamba induced antagonism; however, altered translocation of glyphosate has been documented to be a precursor to herbicide resistance.

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Vasconcelos, Ubieli Alves Araújo. "Análise dialética em algodoeiro (Gossypium hirsutum L.) para tolerância à seca." Universidade Estadual da Paraíba, 2016. http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2333.

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Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2016-05-11T13:46:12Z No. of bitstreams: 1 PDF - Ubieli Alves Araújo Vasconcelos.pdf: 1747559 bytes, checksum: 9c92c8208f13fd0636cc2431631976dc (MD5) Approved for entry into archive by Secta BC (secta.csu.bc@uepb.edu.br) on 2016-07-21T20:46:01Z (GMT) No. of bitstreams: 1 PDF - Ubieli Alves Araújo Vasconcelos.pdf: 1747559 bytes, checksum: 9c92c8208f13fd0636cc2431631976dc (MD5) Approved for entry into archive by Secta BC (secta.csu.bc@uepb.edu.br) on 2016-07-21T20:46:10Z (GMT) No. of bitstreams: 1 PDF - Ubieli Alves Araújo Vasconcelos.pdf: 1747559 bytes, checksum: 9c92c8208f13fd0636cc2431631976dc (MD5) Made available in DSpace on 2016-07-21T20:46:10Z (GMT). No. of bitstreams: 1 PDF - Ubieli Alves Araújo Vasconcelos.pdf: 1747559 bytes, checksum: 9c92c8208f13fd0636cc2431631976dc (MD5) Previous issue date: 2016-02-24 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Cotton is a crop of large economic value at worldwide. The Brazilian production is around 1.5 million tons, coming mainly from the Mid West, Southeast and Northeast region, specially Cerrado areas. Despite to importance of crop to Brazil, there is a broad demand to investment in breeding area focusing on selection of promising genotypes as to yield and regional adaptation. In order to attend this demand, breeding programs have focused on generation of different lines by hybridization, using robust genitors, aiming broaden the genetic background of the lines and to favor the selection procedures. In this study we used 20 cotton lines, obtained through diallel crosses with parents of Moco and herbaceous types, aiming to estimate the GCC and SCC in materials tolerant to drought, based on agronomic traits. The study was carried out in semiarid environment, at Barbalha Station, CE, in dry season, using water supplementation. After the appearance of the first buds, plants were subjected to 23 days of water suppression, and re-established watering thereafter. The experimental design was randomized blocks, with 20 treatments and factorial scheme (20 x 2), and three replications. The variables evaluated were: plant height, Productivity, fiber percentage, Boll weight, Rising of first flower and Rising of first boll. Additionally, total chlorophyll content in leaves was determined. The statistical analysis wasperformed by GENE program. Analyses of combinatorial capacities were performed according to the method adapted by Griffing (1956), which estimates the effects of GCC of each parent and the effects of SCC. There was wide variation between the parents for the analyzed variables. The follow parents showed best estimates of GCA, and therefore, have more favorable alleles, based on traits studied: BRS 286, CNPA 5M and CNPA 7MH. To SCC, the hybrids BRS 286 X CNPA 5M, BRS RUBI X CNPA 5M and BRS 286 X BRS Serido demonstrated complementarity Plant hight and porductivity. The estimates of GCC and SCC presented in this paper provided valuable inputs to cotton improvement, as to both parents and hybrid selections. O algodão é uma cultura de grande importância econômica mundialmente. No Brasil a produção encontra-se na faixa de 1,5 milhões de toneladas, oriundas principalmente das regiões Centro - Oeste, Sudeste e Nordeste, com maior área situada nos Cerrados. Apesar do crescimento da cultura em nível nacional, há necessidade de investimento na área de melhoramento genético com fins de selecionar genótipos promissores para produção e adaptação regional. Para tanto, os programas de melhoramento têm focalizado na geração de linhagens divergentes, por meio de hibridações com progenitores robustos, de modo a ampliar a base genética das linhagens e favorecer os procedimentos de seleção. Nesse trabalho utilizou-se uma população composta de 20 híbridos de algodão, obtida via cruzamentos dialelicos com genitores dos tipos arbóreo e herbáceo, objetivando estimar as CGC e CEC dos materiais tolerantes a seca, focalizando em caracteres agronômicos. O trabalho foi conduzido em ambiente semiárido, em Barbalha, CE, em regime de sequeiro com complementação hídrica.Após o surgimento dos primeiros botões florais, as plantas foram submetidas a 23 dias de supressão hídrica, sendo restabelecidas as regas após esse período. O delineamento experimental adotado foi de blocos ao acaso, com 20 tratamentos, com esquema fatorial 20 x 2, e três repetições. As variáveis avaliadas foram: Altura de planta, Produtividade, Percentagem de fibras, Peso de um capulho, Surgimento da primeira flor e Surgimento da primeira maçã. Adicionalmente, determinou-se o teor de Clorofila total nas folhas. As analises estatísticas foram realizadas pelo programa GENES. As análises das capacidades combinatórias foram realizadas de acordo com o modelo adaptado por Griffing (1956), que estima os efeitos da capacidade geral de combinação CGC de cada parental e os efeitos da capacidade específica de combinação CEC. Verificou-se ampla variabilidade entre os genitores para as variáveis analisadas. Os genitores que apresentaram as melhores estimativas de CGC e com maior número de alelos favoraveis para as principais características estudadas foram BRS 286, CNPA 5M e CNPA 7MH, enquanto que para CEC, os híbridos BRS 286 X CNPA 5M, BRS RUBI X CNPA 5M e BRS 286 X BRS SERIDO destacaram-se por demonstrar melhores estimativas de CEC e complementaridade para ALT e PROD em condições de estresse hídrico. As estimativas de CGC e CEC ofereceram contribuições valiosas no processo de seleção no melhoramento genético, tanto de genitores como de combinações hibridas.

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39

Baltieri, Eliana Maria. "Encapsulação de sementes de algodão (Gossypium hirsutum L. raça latifolium Hutch)." Universidade de São Paulo, 1993. http://teses.usp.br/teses/disponiveis/11/11136/tde-20181127-154944/.

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Com a finalidade de se experimentar a possibilidade de encapsular sementes de algodão, visando melhor distribuição de sementes deslintadas mecanicamente pelas semeadoras, realizou-se, no Departamento de Agricultura da Escola Superior de Agricultura Luiz de Queiroz, o presente trabalho. Foram selecionados três agentes encapsulantes (gesso, calcário e calcário calcinado), combinados com cinco agentes adesivos (açúcar refinado, argila, Coragum R 420, caulim e bentonita). A encapsulação, combinando os agentes referidos, se deu em pequena betoneira, em laboratório. A qualidade das sementes encapsuladas foi avaliada segundo testes de germinação, emergência em areia, emergência no campo, velocidade de emergência e sanidade. A eficiência da encapsulação na distribuição de sementes foi determinada em semeadura montada em bancada, no Instituo Agronômico do Estado de São Paulo, através da vazão em discos comuns. O resultado obtido em todos os testes permite confirmar a hipótese: a encapsulação de sementes deslintadas mecanicamente é possível e aumenta a vazão de semeadoras, sem perda de sua qualidade fisiológica, permitindo a semeadura de precisão, que dispensa o desbaste. not available

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40

Roche, Meghan C. "A study of programmed cell death in cotton (gosypium hirsutum) fiber." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1599.

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COSTA, Deivid Almeida da. "Embriogênese somática em algodão (Gossypium hirsutum L. cv. BRS – 187 – 8H)." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6225.

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Submitted by (ana.araujo@ufrpe.br) on 2017-02-07T17:17:10Z No. of bitstreams: 1 Deivid Almeida da Costa.pdf: 3034904 bytes, checksum: a3834e78a3b01627180c99a9fddc24a9 (MD5) Made available in DSpace on 2017-02-07T17:17:10Z (GMT). No. of bitstreams: 1 Deivid Almeida da Costa.pdf: 3034904 bytes, checksum: a3834e78a3b01627180c99a9fddc24a9 (MD5) Previous issue date: 2007-02-07 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The somatic embryogenesis is a technique of plant tissue culture with several application potentials, as in the clonal propagation of plants, in the regeneration of transformed cells and in the basic studies of the molecular, biochemical and morphologic events that happen duringthe embryogenesis. In spite of the several works reporting somatic embryogenesis in cotton, several problems still persist in the regeneration through embryogenesis. The most of the works is with the line cocker, due to the fact of the cotton to be recalcitrant for the somatic embryogenesis. This way, the present study was conceived with the intention of analyzing the morphogenic response of the cotton to several growth regulators and stressful agents during the induction of embryogenic callus and somatic embryos, correlating the callus production with the antioxidant enzymes expression. For induction of the embryogenic callus, hypocotyl of germinated cotton (BRS – 187 – 8H) surface-sterilized seeds was used. The embriogenic callus induction medium (MICE) consisted of the MSB medium with different combinations and concentrations of 2,4-D, Kinetin, 2iP and Picloram. For conversion of embryogenic callus, it was used the embryo induction medium (MIE) that consistes of MSB medium and MSB supplemented with zeatin; L-glutamine, asparagine; espermine, espermidine or different concentrations of NH4NO3 and KNO3. The results show that among the MICE tested, the medium with 0,1 mg L-1 2,4-D and 0,3 mg L-1 Kinetin (MSB1 medium) and the MCIM medium showed the largest average in the production of embryogenic callus by explant. Explants in the MIE-1 presented the best proliferation of the embryogenic callus. However, the formation of globular and embryogenic structures was only visualized in the embryogenic callus formed in MSB1 medium, which were transferred for MSB medium and subcultivated in MIE-4 medium. It was concluded that different growth regulators can induce the formation of embryogenic callus in cotton cultivar BRS – 187 – 8H and the suppression of the growth regulators favors the appearance of globular and pre-embryogenic structures. In the experiments of the influence of the stress in cotton callus formation and the isozymic antioxidant system expression, it was used for induction of embryogenic callus, thecombination of MSB and MSB1 medium with two concentrations of FeEDTA: the concentration standard of the MS medium; and a concentration five times larger. It wasestablished three regimes of luminous intensity: darkness; 3,4 Klx and 6,0 Klx. Embryogenic callus were obtained on the MSB1 (3,4 Klx), MSB1 (6,0 Klx) and MSB1+FeEDTA (5X) medium. The electrophoretic system of the catalase and peroxidase showed variation in the intensity of the bands. The results show that the embryogenic callus formation dependent of the action of growth regulators and of the light presence, and the isozymic standards of catalase and peroxidase present similar pattern and they are related with the embryogenic aspect of the calluses. A embriogênese somática é uma técnica de cultura de tecidos vegetais com diversos potenciais de aplicação, como na propagação clonal de plantas, na regeneração de células transformadas geneticamente e nos estudos básicos dos eventos moleculares e bioquímicos e morfológicos que ocorrem durante a embriogênese. Apesar dos diversos trabalhos relatando embriogênese somática em algodão, vários problemas ainda persistem na regeneração via embriogênese e a maioria dos trabalhos é com a linha cocker, devido a recalcitrância do algodão a embriogênese somática. Deste modo, o presente estudo foi concebido com o intuito de analisar a resposta morfogênica do algodão a vários reguladores de crescimento e agentes estressantes durante a indução de calos embriogênicos e embriões somáticos, correlacionando a calogênese com a expressão de isoformas do sistema antioxidativo. Para indução dos calos embriogênicos utilizou-se sementes desinfestadas da cultivar de algodão BRS – 187 – 8H. Os meios de indução de calos embriogênicos (MICE) utilizados consistiram no meio MSB acrescido de varias combinações e concentrações dos reguladores de crescimento 2,4-D; Cinetina, Picloram e 2-iP. Já para conversão dos calos embriogênicos em embriões, utilizouse o meio de indução de embiões (MIE) que consiste no meio MSB e MSB acrescido dezeatina, ou diferentes concentrações de NH4NO3 e KNO3, ou acrescido de L glutamina; asparagina; espermina; espermidina. Os dados obtidos mostram que entre os MICE testados, o meio contendo 0,1 mg L-1 de 2,4-D e 0,3 mg L-1 de cinetina (meio MSB1) e o meio MCIM mostraram as maiores médias na produção de calos embriogênicos por explante. Entre os MIE, o MIE-1 apresentou melhor proliferação dos calos embriogênicos. Contudo, a formação de estruturas globulares e embriogênicas só foi visualizada nos calos embriogênicos formados em meio MSB1 e transferidos para meio MSB e subcultivados em meio MIE-4. Concluiu-se então que diferentes reguladores podem induzir a formação de calos embriogênicos na cultivar BRS – 187 – 8H, e a supressão dos reguladores de crescimento favorece o surgimento de estruturas globulares e pré-embriogênicas. Nos experimentos da influência do estresse na calogênese e a expressão de isoenzimas do sistema antioxidativo, utilizou-se para a induçãode calos embriogênicos a combinação do meio MSB e MSB1 com duas concentrações de FeEDTA: a concentração padrão do meio MS; e uma concentração cinco vezes maior. E foiestabelecido três regimes de intensidade luminosa: escuro; 3,4 Klx e 6,0 Klx. Calos embriogênicos foram obtidos nos meios MSB1(3,4 Klx), MSB1(6,0 Klx) e MSB1+FeEDTA(5X). Analises de eletroforese de isoenzimas da catalase e peroxidase mostraram variação na intensidade das bandas. Os resultados obtidos permitiram concluir que formação de calos embriogênicos é dependente da ação de reguladores de crescimento e da presença de luz, e que as isoformas de catalase e peroxidase apresentam padrão similar e estão relacionadas com o aspecto embriogênico dos calos.

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42

Köse, Seyit Ali Kaya Hakan. "Polikistik over sendromlu hastalarda laparoskopik ovaryan multineedle intervention (Lomni) yönteminin hirsutizm, adet düzeni ve hormon düzeylerine etkisi /." Isparta : SDÜ Tıp Fakültesi, 2004. http://tez.sdu.edu.tr/Tezler/TT00167.pdf.

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43

Sekloka, Emmanuel. "Amélioration de l'efficacité de la sélection pour le rendement en coton graine du cotonnier Gossypium hirsutum L. Dans un contexte de nouveaux itinéraires techniques." Rennes, Agrocampus, 2006. http://www.theses.fr/2006NSARC015.

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Dans la plupart des régions cotonnières d'Afrique de l'ouest et du centre où la culture est essentiellement pluviale, l'étalement croissant des dates de semis du coton entraîne une diversification des itinéraires techniques. Pour produire du matériel végétal adapté, la sélection cotonnière doit diversifier ses objectifs de création variétale. Nous avons donc étudié les stratégies de mise en place de la production chez différentes variétés de cotonnier Gossypium hirsutum L afin d'en identifier les plus productives de les traduire en critères de sélection et de mettre au point des stratégies efficaces pour l'amélioration du rendement dans plusieuers situations de culture pluviale. Quatre essais conduits entre 2002 et 2003 dans deux localités cotonnières du Bénin ont permis de comparer dix variétés à trois densités et à deux dates de semis. Les observations ont porté sur la phénologie et la floraison, l'architecture, la rétention et la répartition des capsules. Ces observations ont été mises en relation avec le rendement et ses composantes. Dans ce travail, nous avons défini un nouvel indicateur de fin de floraison la date de la dernière fleur en première position de branche fructifère et proposé une méthode simplifiée pour l'estimer. Cet indicateur a permis de calculer plus précisément le temps de floraison utile (TFU) qui a bien discriminé le matériel génétique étudié. Nous avons constaté que le retard de semis de l'augmentation de la densité ont des effets similaires : ils retardent l'apparition de la première fleur, raccourcissent le temps de floraison utile, réduisent le développement végétatif de la plante, diminuent la production et le taux de rétention de capsules. La production capsulaire est concentrée sur les parties basses du plant In most cotton areas of Western and Central Africa cotton is primarily rainfed and sowing dates are more and more spread out in time. Such changes need the develoment of new cropping systems and new genetic material to fit them. The cotton breeding programs have to diversity their breeding objectives in order to develop the varieties adapted to later sowing dates and increased plant stands. In this work we studied the production strategies of several varieties of cotton Gossypium hirsutum L. In order to identify the most productive strategies, to translate them into selection criteria and to develop effective strategies for yield improvement in rainfed cluture. Four trials were carried out between 2002 and 2003 at Parakou and Bohicon (Benin). They compared ten varieties under three densities and two sowing dates. The observatins focused on phenology and flowering, architecture, bool retention and distribution. They were related to yield and its components. We could test a new indicator of the cut-out status of a plant, the date of the last flower giving rise to a first-position bool on fruiting branches (LFP1), and we put-up a simplified method to estimate it. This indicator made it possible to estimate the effective flowering time (EFT) of each variety. We noted that late sowing and high stads have similar effects : they delay first flower opening date (FF), shorten EFT, reduce the vegetative growth and decrease the production as opening date (FF), shorten EFT, reduce the vegeetative growth and decrease the production as well as the bolls retention rate

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Santana, Bruna Apolonio. "Preparo das sementes de algodoeiro para o teste de tetrazólio." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-10092013-162910/.

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O teste de tetrazólio avalia as condições física e fisiológica de cada semente individualmente e permite a avaliação rápida da viabilidade e do vigor. No entanto, para as sementes de algodão, o preparo da semente requer a remoção dos tegumentos, interno e externo, e a eliminação dos tegumentos pode causar injúrias físicas nos tecidos do embrião, dificultando a avaliação do teste e a obtenção de resultados precisos. Neste contexto, os objetivos desta pesquisa foram: a) avaliar métodos de preparo da semente de algodão utilizando estufa e micro-ondas; b) classificar as sementes quanto à viabilidade e ao vigor em três classes: viáveis vigorosas, viáveis e não viáveis. Para isso, foram utilizadas sementes de algodão, cultivar BRS 269 - Buriti, representadas por quatro lotes e analisadas em duas épocas. A caracterização inicial do parâmetro fisiológico foi pelos testes de germinação e de vigor (primeira contagem, envelhecimento acelerado, germinação a 18ºC, frio e emergência da plântula). Em seguida, foi estudada a absorção de água, pela hidratação das sementes por imersão em água, utilizando estufa e radiação de micro-ondas, e entre papel a 25º, a 30ºC e a 35ºC. Para o preparo das sementes para o teste de tetrazólio,utilizando a estufa, foram avaliados: o método descrito nas regras para análise de sementes - RAS (hidratação seguida da remoção dos tegumentos para a coloração) e outros métodos que incluem: o corte da semente seguido da hidratação e da coloração (CHC), a hidratação da semente seguida do corte e da coloração (HCC) e o corte da semente seguido da coloração (CC), utilizando as temperaturas de 30ºC, 35ºC e 40ºC para a coloração dos tecidos. Para o preparo das sementes utilizando a radiação micro-ondas foram avaliados: o método indicado nas RAS e o corte da semente seguido da hidratação por imersão em água durante oito minutos em potência média (CI8min), o corte da semente seguido da imersão em água durante três minutos em potência alta (CI3min), o corte da semente seca seguido da coloração (CS) e o corte da semente seguido da hidratação por sessenta minutos a 30ºC (CH60min). O preparo das sementes do algodoeiro para o teste de tetrazólio pode ser feito pelo corte das sementes seguido da hidratação, por 2h a 30°C, e da coloração em estufa a 40°C. A utilização da radiação microondas é outra opção para o preparo dessas sementes para o teste tetrazólio; o indicado é o corte das sementes seguido da hidratação, por imersão em água por três minutos, e coloração por 13 minutos em potência alta (CI3min) e o corte seguido da hidratação por 60 minutos a 30°C e coloração por 18 minutos em potência média (CH60min). A classificação das sementes em três classes, viável e vigorosa, viável e não viável, é suficiente para estimar a viabilidade e o vigor das sementes do algodoeiro pelo teste de tetrazólio. The tetrazolium test assesses the physical and physiological characteristics of each seed individually and allows fast assessment of viability and vigor. However, for cotton seeds, preparation of seed requires removal of the inner and outer teguments, which may cause physical injuries in embryo tissues, making difficult the evaluation of the test and obtaining accurate results. In this context, the objectives of this research were: a) to evaluate methods of preparation of cotton seed, without removal of the tegument, using a hot air oven and microwave and b) classify seeds by viability and vigor into three classes: vigorous viable, viable and non-viable. For this, we used cotton seeds, BRS 269 - Buriti cultivate, represented in four lots and analyzed in two seasons. The initial characterization of the physiological parameter was made by testing germination and vigor (first count, accelerated aging, germination at 18°C, cold and seedling emergence). Following, the absorption of water was studied , by seed hydration with water immersion using a hot air oven and microwave radiation and hydration in a hot air oven at 25ºC, at 30ºC and at 35ºC. For the preparation of the seeds for the tetrazolium test, using the hot air oven, the method described in the rules for seed analysis RAS (hydration followed by removal of teguments for coloring) and other methods that include: cut of the seed, hydratation and staining (CHC), hydration of seed, cut and staining (HCC) and cut and staining (CC), using the temperatures of 30ºC, 35ºC and 40ºC, for tissues staining were used. For the preparation of the seeds using microwave radiation, the following treatments were analyzed: the method indicated by RAS and the cut of the seed followed by hydration by immersion into water, for eight minutes medium power (CI8MIN), cut of the seed during three minutes immersion into water, high power (CI3MIN ), cut of the dry seeds and staining (CS) and cut, hydration for 60 minutes at 30°C (CH60MIN). Preparation of cotton seeds for the tetrazolium test can be made by the cut of the seeds followed by hydration, for 2 hours, at 30°C and staining in a hot air oven, at 40°C. Microwave radiation is another option for preparing the seeds for tetrazolium test. The indicated is the cut of the seeds, followed by hydration, by immersion into water, during 3 minutes and staining for 13 minutes, in high power (CI3min) and the cut followed by hydration for 60 minutes at 30°C and staining for 18 minutes in medium power (CH60min). The classification of the seeds in three classes, viable and vigorous, viable and non viable is sufficient to estimate the viability and vigor of cotton seeds by the tetrazolium test.

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MYLES, ELBERT LEWIS JR. "CYTOGENETICS OF GAMETOGENESIS IN HAPLO 9 OF GOSSYPIUM HIRSUTUM L. (MEGASPOROGENESIS, MEIOSIS)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187915.

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Plants monosomic for chromosome 9 of Gossypium hirsutum, in addition to Haplo 9 plants, produce many kinds of aneuploid progenies consisting of monosomics, trisomics, multiple monosomics, and different monosomic-trisomic combinations. Cytological analysis of megasporagenesis was conducted to determine the stage and the mechanism that would account for the production of the different kinds of aneuploid progeny. Two new cytotypes involving chromosome 9 were isolated and identified as monotelodisome 9S (Telo 9S) and monoisodisome 9S (Iso 9S), both of which produce different kinds of aneuploids very similar to Haplo 9. Monotelodisomic 9L plants do not produce various kinds of aneuploid progeny like Haplo 9, Telo 9S and Iso 9S. These observations indicate that control of chromosome segregation is on the long arm of chromosome 9. There was no significant difference between Telo 9S and Iso 9S in the kinds and frequencies of aneuploids, but there was a significant difference between these two and Haplo 9. Haplo 9, Telo 9S and Iso 9S showed no significant difference in the chromosomes subtracted or added to the chromosome complement of their respective aneuploid progenies. Analysis of female gametogenesis in TM1 or control plants showed that premeiotic division occurred when bud size is 6.0 - 6.6mm; meiosis occurred when bud size is 6.3 - 7.2mm; the first mitotic division of the megaspore occurred when bud size is 6.9 - 7.8mm, and the second and third mitotic divisions of the megaspore occurred when bud size is 7.8 - 8.5mm. The premeiotic, meiotic, and post meiotic divisions were normal. Female gametogenesis was cytologically analyzed in Haplo 9 plants and it was observed that there was a higher frequency of gametophytes with fewer post meiotic divisions and that there was nonsynchrony of the post-meiotic divisions in a number of the developing female gametophytes. It is assumed that these irregularities are due to the absence of chromosome 9. It is concluded that the long arm of chromosome 9 has control over chromosome segregation, and that most likely nondisjunction occurs throughout female gametogenesis, but confined primarily to the three mitotic divisions following meiosis. Genetic tests showed that eight mutant genes were not located on chromosome 9. The aneuploids had lower seeds per boll than normal disomic plants.

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Comim, Fabio Vasconcellos. "Resposta do GH ao teste de estimulação com clonidina em pacientes com a síndrome dos ovários policísticos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/2902.

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Villamar, Torres Ronald Oswaldo. "Genetic study of topping-induced cotton/Gossypium hirsutum/ L. plant defense reactions, combining : Bioinformatics, VOC capture and genic expression." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG073.

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Gossypium hirsutum, le coton Upland, représente plus de 95% de la fibre de coton produite annuellement dans le monde et est cultivé dans environ 40 pays. La protection des champs de coton contre l’attaque des arthropodes herbivores nécessite des quantités importantes d’insecticides de synthèse, environ 18% de la consommation mondiale en 2000, bien que cela ait beaucoup diminué grâce au coton Bt et aux programmes d’éradication de certains ravageurs. Les composés organiques volatils (COV) naturellement émis par les plantes cultivées peuvent réduire les attaques d'insectes, les COV ayant une influence sur le comportement des arthropodes herbivores et des arthropodes auxiliaires. La recherche scientifique sur les COV des plantes a beaucoup augmenté depuis deux ou trois décennies. La stimulation des émissions de COV dans les champs de coton est désormais recommandée par les entomologistes du Cirad en tant que composante de la stratégie de protection. L’écimage (topping en anglais), c'est-à-dire couper la tête des cotonniers au cours de la floraison, stimule l'émission de COV de défense, une protection écologique qui limite les risques pour la santé dus aux insecticides synthétiques, pour les agriculteurs et les personnes des environs. L'objectif de la thèse était d'améliorer nos connaissances sur les bases génétiques des émissions de COV après l’écimage. La combinaison de plusieurs disciplines telles que la bio-informatique, l'écologie chimique et la génétique moléculaire nous a permis de: 1) analyser les séquences génomiques des gènes des voies de biosynthèse des COVs terpènes et terpénoïdes et des facteurs de transcription (TF) liés à la réponse au stress, à l'aide des bases de données publiées sur les génomes de trois espèces de coton, G. raimondii, G. arboreum (cotons diploïdes) et G. hirsutum (coton tétraploïde), 2) étudier les émissions de COV par les feuilles de coton des plants de G. hirsutum en réponse à l’écimage, en capturant ces molécules en serre et en caractérisant leurs profils cinétiques par chromatographie en phase gazeuse-spectrométrie de masse (GC-MS), incluant des mesures quantitatives, et 3) étudier les modifications de l'expression ARN des plants de coton G. hirsutum après l’écimage, pour 44 gènes impliqués dans la biosynthèse des COV, et également par une comparaison du transcriptome complet au moyen d'une analyse RNA-seq. Les résultats des trois domaines scientifiques, bio-informatique, analyse chimique et expression des gènes, ont pu être liés dans notre thèse de recherche: par ex., deux des gènes initialement identifiés par la bio-informatique, correspondant à deux enzymes, TPS50 (EC: 4.2.3.106 - (E ) bêta-ocimène synthase) et TPS16 (EC: 4.2.3.111 - alpha-terpinéol synthase), ont montré une augmentation de leur expression après l’écimage, et l'analyse GC-MS montre une modification correspondante des profils d'émission de COV. Ces mêmes composés avaient déjà été caractérisés dans d'autres plantes en réponse aux dégâts d’arthropodes. Ce travail de thèse constitue une première exploration des bases génétiques des émissions défensives de COV par les cotonniers cultivés G. hirsutum. La variabilité des comportements d’expression génique observés entre les trois génotypes étudiés de coton Upland africain G. hirsutum, permet de supposer qu’une diversité génétique est présente pour les émissions défensives de COV, ce qui pourrait permettre d’améliorer et d’adapter ces mécanismes de défense naturels et leur réponse à l’écimage, dans la perspective d'une protection naturelle plus efficace des champs de coton Gossypium hirsutum, the Upland cotton, represents more than 95% of the cotton fiber annually produced worldwide and is grown in about 40 countries. The protection of cotton fields against the attack of herbivorous arthropods needs important quantities of synthetic insecticides, around 18% of the world consumption for the year 2000, although this decreased very much thanks to Bt cotton and eradication programs for some pests. Volatile organic compounds (VOCs) naturally emitted by crop plants can reduce insect attacks through the influence of VOCs on the behaviors of herbivorous arthropods and auxiliary arthropods. Scientific research about plant VOCs has been increasing much since two or three decades. The stimulation of VOCs emissions by cultivated cotton plants is now recommended by entomologists of CIRAD as a component of the cotton fields protection strategy. “Topping", that is, cutting the head of the cotton plants during the useful floriferous period, stimulates the emission of defense VOCs. It is an environmentally friendly method and it limits health hazards due to the use of synthetic insecticides for the farmers and the surrounding human populations. The objective of the thesis was to improve our knowledge about the genetic bases of VOCs emissions after topping. The combination of several disciplines such as bioinformatics, chemical ecology and molecular genetics allowed us to: 1) analyze the genomic sequences of VOCs genes of the terpene and terpenoid biosynthesis pathways and transcription factors (TF) related to stress response, using the published genome databases of three cotton species, G. raimondii, G. arboreum (both diploid cottons) and G. hirsutum (tetraploid cotton), 2) study the VOCs emissions by cotton leaves of G. hirsutum plants in response to topping, by capturing these molecules in greenhouse and then characterizing their kinetic profiles by means of gas-chromatography mass-spectrometry (GC-MS), with quantitative measurements, and, 3) study the modifications of the RNA expression of G. hirsutum cotton plants after topping, for genes involved in VOCs biosynthesis through quantitative PCR measurements on 44 targeted genes and also by means of a whole-transcriptome comparison through an RNA-seq analysis. The results from the three different fields, bioinformatics, chemical analysis and gene expression, could be interrelated in our research thesis: e.g., two of the genes initially identified by bioinformatics, corresponding to two enzymes, TPS50 (EC: 4.2.3.106 - (E) -beta-ocimene synthase) and TPS16 (EC: 4.2.3.111 - alpha-terpineol synthase), were shown to increase their expression after topping, while the GC-MS analysis showed an modification of the corresponding VOCs in emission profiles. These compounds have been already characterized in other organisms in response to wounds produced by herbivorous insects. This thesis work is a first exploration of the genetic bases of defensive VOCs emission by G. hirsutum cultivated cottons. The variability of genic expression behaviors observed amongst the three genotypes of African Upland cotton G. hirsutum that were studied permits to hypothesize that a genetic diversity is present for defensive VOCs emissions, that could permit to improve and adapt by breeding these natural defense mechanisms and the response to topping, in perspective of a more efficient natural protection of cotton fields

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FREITAS, Roberto José de. "Adubação potássica via solo e foliar na produção e qualidade da fibra do algodoeiro." Universidade Federal de Goiás, 2006. http://repositorio.bc.ufg.br/tede/handle/tde/2641.

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Made available in DSpace on 2014-07-29T16:24:13Z (GMT). No. of bitstreams: 1 Dissertacao Roberto J Freitas.pdf: 239807 bytes, checksum: 4ec206d2fecf55f55df3562fc5e07bbb (MD5) Previous issue date: 2006-08-15 Cotton as a crop in Brazil has undergone significant changes in production technology and geographical location in recent years. Cultivation has shifted from traditional producing zones in the southeast of Brazil and the south region of the State of Goiás to the cerrados of the country's central-western region and the western part of Bahia. These technological changes were triggered by the adoption of exotic cultivars (American and Australian), with higher yield potential, better fiber quality, but also greater nutritional requirements. During this process, more demanding cultivars were consequently adopted, concurrently with the occupation of soils of lower natural fertility. During this period, a productivity increase in excess of 100% was verified. The conjunction of these factors has disorganized the fertilization recommendation practices adopted for this crop, since they were no longer adequately supported by the existing calibrations, generated under different soil conditions and at a different technological level. The use of fertilizers was then greatly intensified, in a most disorderly manner. Within this context, potassium was the nutrient whose use increased the most, due to the specific characteristics of this nutrient on the plant's metabolism and to its high degree of absorption by cotton plants. The potassium fertilization of cotton in the cerrados has therefore been performed in the various producing areas with great variation in rates and application modes, from total applications in the soil at pre-planting, to split applications in the soil, to supplementary foliar applications, still without the proper support from current experimental results. In this work, we evaluated the effect of combined soil and foliar applications of potassium on the productivity and quality of ginned cotton, under the cerrado conditions of the State of Goiás, by the installation of two experiments, combining different potassium rates in both application modes, organized in random blocks with split-plots. One assay was installed in Ipameri, with the application of five treatments to the soil (0, 60, 120, 180, and 240 kg ha-1 K2O ha-1) combined with four foliar treatments ( 0; 7.2; 14.4; and 21.6 kg K2O ha-1). Another assay was installed in Santa Helena de Goiás, in which four potassium levels were evaluated in the soil (0, 80, 160, and 240 kg K2O ha-1), combined with foliar rates similar to those used in the Ipameri assay. Significant productivity gains were observed for the soil applications in both assays, and for the foliar applications in the Ipameri assay. No interactions were observed between application modes. Also, no significant potassium fertilization effects were observed on the technological quality of the fiber. A cultura do algodão no Brasil apresentou nos últimos anos significativas mudanças na tecnologia de produção e na localização geográfica. O cultivo deslocou-se de zonas produtoras tradicionais do Sudeste brasileiro e da região Sul do estado de Goiás, para os cerrados da região Centro Oeste e do Oeste da Bahia. As mudanças tecnológicas foram desencadeadas pela adoção de cultivares exóticos (americanos e australianos), com maior potencial produtivo, melhor qualidade de fibra e também maior exigência nutricional. Nesse processo ocorreu então a adoção de cultivares mais exigentes, concomitantemente à ocupação de solos de menor fertilidade natural. Verificou-se ainda nesse período incremento de produtividade superior a 100%. A conjunção desses fatores desorganizou a prática de recomendação de adubação na cultura, não mais amparada adequadamente pelas calibrações existentes, originadas em diferentes condições de solo e em outro nível tecnológico. Ocorreu então grande intensificação, de modo desordenado, na utilização de fertilizantes. O potássio nesse contexto foi o nutriente com maior incremento de utilização, devido às características específicas desse nutriente no metabolismo da planta e a seu alto nível de absorção pelo algodoeiro. A adubação potássica do algodoeiro nos cerrados, tem sido então efetuada nas diversas áreas produtoras, com grande variação nas doses e modos de aplicação, desde aplicações totais via solo em pré-plantio, aplicações via solo parceladas, até aplicações foliares complementares, ainda sem o devido respaldo de resultados experimentais contemporâneos. Esse trabalho avaliou nas condições do cerrado goiano, o efeito da combinação de aplicações de potássio via solo e foliar, na produtividade e qualidade da pluma do algodoeiro, através da instalação de dois experimentos, combinando diferentes doses de potássio nas duas modalidades de aplicação, arranjados em blocos ao acaso, com parcelas subdivididas. Foi instalado um ensaio em Ipameri com aplicação de cinco tratamentos via solo (0, 60, 120, 180 e 240 kg ha-1 de K2O) combinados a quatro tratamentos foliares ( 0; 7,2; 14,4 e 21,6 kg ha-1 de K2O). Outro ensaio foi instalado em Santa Helena de Goiás, onde foram avaliados quatro níveis de potássio via solo (0, 80, 160 e 240 kg ha-1 de K2O), combinados à doses foliares similares às do ensaio de Ipameri. Observaram-se ganhos de produtividade significativos para as aplicações via solo nos dois ensaios, e para as aplicações foliares no ensaio de Ipameri, não tendo sido verificadas interações entre as modalidades de aplicação. Não foram também verificados efeitos significativos da adubação potássica na qualidade tecnológica da pluma.

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Sanches, Carlos Vinícius. "Disponibilidade de Ni em um latossolo vermelho distrófico em função da aplicação de gesso agrícola e caracterização fisiológica e bioquímica do algodoeiro /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151924.

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Orientador: Enes Furlani Junior Resumo: O algodoeiro apresenta uma sensibilidade elevada nos sistemas de cultivo. A acidez do solo aliada a alta concentração alumínio e a baixa disponibilidade de cálcio em profundidade podem limitar a produtividade sendo possível verificar distúrbios nutricionais. Nesse contexto, o níquel, nutriente essencial, componente da metaloenzima urease tem sua importância comprovada no metabolismo do nitrogênio e vem sendo estudado como alternativa para melhorar a qualidade do sistema de cultivo por meio da eficiência do uso do nitrogênio disponível. Outra vertente de estudos diz respeito a capacidade do níquel de agir como metal pesado sendo prejudicial para as culturas, dessa maneira faz-se necessário entender a dinâmica desse nutriente dentro dos sistemas de cultivo. Tendo em vista o exposto, o objetivo deste trabalho foi verificar os efeitos da aplicação de diferentes doses de níquel e gesso, e a interação entre os dois sobre o crescimento, produtividade e estado nutricional de plantas de algodoeiro em condições de campo. O experimento foi desenvolvido em dois anos, os tratamentos utilizados foram 0,0; 1,0; 2,0; 6,0; 12 e 16 kg ha-1 de Ni e 0, 200, 400 e 800 kg ha-1 de gesso, aplicados via solo. Utilizou-se o delineamento em blocos ao acaso em um fatorial 6x4 com 3 repetições. Para mensurar o efeito dos tratamentos, os parâmetros de crescimento (altura, diâmetro e número de ramos), estado nutricional (P, K, Ca, Mg, S, Cu, Fe, Mn, Zn e Ni), e produtividade (número de estruturas reproduti... (Resumo completo, clicar acesso eletrônico abaixo) Mestre

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Dickenmann-Roth, Denise Zellweger Claudine. "haarig hier ... haarig dort : Hirsutismus und Hyperandrogenämie : eine dreiteilige Tonbildschau für Studenten und Aerzte /." [S.l : s.n.], 1994. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Dissertations / Theses on the topic 'Hirsutism'

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