Academic literature on the topic 'Mycosphaerella fijiensis/bananier'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Mycosphaerella fijiensis/bananier.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Mycosphaerella fijiensis/bananier"
Kassi, FM, OJ Badou, ZF Tonzibo, Z. Salah, LNDGE Amari, and D. Kone. "Action du fongicide naturel NECO contre la cercosporiose noire (Mycosphaerella fijiensis Morelet) chez le bananier plantain (AAB) en Côte d’Ivoire." Journal of Applied Biosciences 75, no. 1 (April 15, 2014): 6192. http://dx.doi.org/10.4314/jab.v75i1.3.
Full textHANADA, ROGÉRIO E., LUADIR GASPAROTTO, and J. CLÉRIO R. PEREIRA. "Sobrevivência de conídios de Mycosphaerella fijiensis em diferentes materiais." Fitopatologia Brasileira 27, no. 4 (July 2002): 408–11. http://dx.doi.org/10.1590/s0100-41582002000400013.
Full textGasparotto, Luadir, J. Clério R. Pereira, Arailde F. Urben, Rogério E. Hanada, and Mirza C. N. Pereira. "Heliconia psittacorum: hospedeira de Mycosphaerella fijiensis, agente causal da sigatoka-negra da bananeira." Fitopatologia Brasileira 30, no. 4 (August 2005): 423–25. http://dx.doi.org/10.1590/s0100-41582005000400016.
Full textHanada, Rogério E., Luadir Gasparotto, and José Clério R. Pereira. "Eficiência de desinfestantes na erradicação de conídios de Mycosphaerella fijiensis aderidos à superfície de bananas." Fitopatologia Brasileira 29, no. 1 (February 2004): 94–96. http://dx.doi.org/10.1590/s0100-41582004000100015.
Full textGasparotto, Luadir, José Clério R. Pereira, Sônia Maria F. Albertino, and Mirza Carla N. Pereira. "Plantio adensado não controla a sigatoka-negra da bananeira." Acta Amazonica 38, no. 2 (2008): 189–92. http://dx.doi.org/10.1590/s0044-59672008000200001.
Full textSouza, Napoleão S. de, and Emir Feguri. "Ocorrência da Sigatoka Negra em bananeira causada por Mycosphaerella fijiensis no Estado de Mato Grosso." Fitopatologia Brasileira 29, no. 2 (April 2004): 225. http://dx.doi.org/10.1590/s0100-41582004000200020.
Full textBeveraggi, A., X. Mourichon, and G. Sallé. "Étude comparée des premières étapes de l'infection chez des bananiers sensibles et résistants infectés par le Cercospora fijiensis (Mycosphaerella fijiensis) agent responsable de la maladie des raies noires." Canadian Journal of Botany 73, no. 9 (September 1, 1995): 1328–37. http://dx.doi.org/10.1139/b95-144.
Full textSantos, Silvia Correa, Luciana Celeste Carneiro, Américo Nunes da Silveira Neto, Euter Paniago Júnior, Henrique Gonçalves de Freitas, and Cecília Nascimento Peixoto. "Caracterização morfológica e avaliação de cultivares de bananeira resistentes a Sigatoka Negra (Mycosphaerella fijiensis Morelet) no sudoeste goiano." Revista Brasileira de Fruticultura 28, no. 3 (December 2006): 449–53. http://dx.doi.org/10.1590/s0100-29452006000300024.
Full textGómez-Correa, Juan Camilo, Walter Smith Torres-Aponte, Daniel Gerardo Cayón-Salinas, Lilliana María Hoyos-Carvajal, and Darío Antonio Castañeda-Sánchez. "Modelación espacial de la Sigatoka negra (Mycosphaerella fijiensis M. Morelet) en banano cv. Gran Enano." Revista Ceres 64, no. 1 (February 2017): 47–54. http://dx.doi.org/10.1590/0034-737x201764010007.
Full textAguirre Forero, Sonia Esperanza, Nelson Virgilio Piraneque Gambasica, and Juan Carlos Menjivar Flores. "Relación entre las propiedades edafoclimáticas y la incidencia de sigatoka negra (Mycosphaerella fijiensis Morelet) en la zona bananera del Magdalena-Colombia." Revista de Investigación Agraria y Ambiental 3, no. 2 (October 7, 2012): 13. http://dx.doi.org/10.22490/21456453.970.
Full textDissertations / Theses on the topic "Mycosphaerella fijiensis/bananier"
Rivas-Platero, Gonzalo Galileo. "Effets de fondation et différenciation génétique aux échelles continentale et locale chez Mycosphaerella fijiensis, champignon responsable de la maladie des raies noires du bananier." École nationale supérieure agronomique (Montpellier), 2003. http://www.theses.fr/2003ENSA0013.
Full textAlquier-Baudoin, Christine. "Recherche d'un test précoce de sélection pour la résistance du bananier (Musa sp) à la maladie des raies noires (Mycosphaerella fijiensis)." Paris 11, 1985. http://www.theses.fr/1985PA112206.
Full textThe research of new banana varieties resistant to Mycosphaerella fijiensis needs the use of technics involving in vitro culture. The establishment of an early test of resistance is necessary for the valorization of the methods. We tried to design some tests, permitting the detection of resistance characters carried by calluses or plantlets from in vitro culture. A crude extract (C. E. ) was obtained from cultures of M. Fijiensis. No evidence for the presence of cercosporin in this C. E. Was found. The toxicity of the fungus or of the C. E. Against calluses of banana was tested by placing them separately in the same Petri dish. Only the fungus was showed to be toxic in these conditions, and equally on all the varieties studied. The inoculation of fungus into leaves of banana in laboratory was difficult. The injection of C. E. In leaves of bananas reveals its toxic action. The variations of level of reactions among different varieties don't seem to be in relation with their resistance ability's. Even if the results obtained don't yet permit the establishment of a practical test of resistance, they might contribute to improve the knowledge of different mechanisms of resistance
Rieux, Adrien. "Etude des processus de dispersion et des flux géniques chez un champignon phytopathogène : le cas de Mycosphaerella fijiensis à l’échelle d’un bassin de production Camerounais." Thesis, Montpellier, SupAgro, 2011. http://www.theses.fr/2011NSAM0011.
Full textDispersal is a key process for both the dynamics and evolution of natural populations. In addition to being crucial for colonization, dispersal also influences the processes occurring during adaptation. For pathogens, a better understanding of dispersal processes may improve our capacity to control the diseases that they cause. In this thesis, we studied dispersal processes and quantified gene flow in the banana plant pathogen Mycosphaerella fijiensis at the local scale of a production area in South-West Cameroon (named Moungo). For this purpose, several approaches differing in the spatio-temporal scale to which they refer were combined. First, neutral markers were used to describe the spatial genetic structure of this pathogen in the Moungo area, which includes several potential ecological barriers to dispersal. No effects on genetic structure of landscape elements or geographical distance were found. However, we detected a spatial break in allelic frequencies that appeared to be explained by an historical event. This result suggests the existence of large M. fijiensis populations out of the mutation-migration-drift genetic equilibrium. Second, genetic cline theory was applied to study the evolutionary forces implicated in the installation and evolution of spatial gradients in allelic frequencies. More specifically, we analysed the spatio-temporal variation of the genetic discontinuity previously detected through a neutral cline model to estimate the intensity of gene flow in this area ( =1175 m/generation). Lastly, we measured the distribution of dispersal distances of M. fijiensis spores from a primary source of inoculum was. Such an experiment allowed us to confirm that conidia are implicated in short-distance dispersal whereas ascospores are responsible for spread of the disease over longer distances. The estimated mean dispersal distance travelled by spores was 3.12 and 283 metres/generation for conidia and ascospores, respectively, and the ascospore dispersal kernel was shown to be fat-tailed. This thesis adds to global knowledge of M. fijiensis dispersal and the measures of dispersal estimated in this work will be useful in parameterizing models aimed at a better understanding of the spatial patterns of fungicide resistance evolution under different management strategies
Landry, Clara. "Modélisation des dynamiques de maladies foliaires de cultures pérennes tropicales à différentes échelles spatiales : cas de la cercosporiose noire du bananier." Thesis, Antilles-Guyane, 2015. http://www.theses.fr/2015AGUY0835/document.
Full textThis thesis concerns the modeling of the dynamics of foliar diseases of tropical tree crops at different spatial scales. This modeling approach is applied to black Sigatoka of banana. It is to explore and determine the environmental parameters and host resistance has a significant influence on the spatiotemporal dynamics of the disease and to provide elements associated with the control of Sigatoka noire.Deux models were developed as part of this thesis. The epidemiological dynamics at the plant is described by a mechanistic model decomposed into a growth model of the plant and an epidemiological unit describing the pathogen epidemic cycle. The architecture of the banana is taken into account through foliar compartments positioned in space. The model was validated by an independent data set. Numerical experiments and model sensitivity analysis performed by the methods of Morris and e-FAST enabled to better understand the functioning of this epidemic disease and identify the parameters affecting the most dynamic epidemic especially speed extension of the lesions, the incubation period and efficiency of Bayesian .L'approche infection allowed to take into account prior information available for these three parameters that were the statistical inference. The model sensitivity analysis also identified the influence of two parameters related to plant growth: the number of leaves on a plant and rate of leaf emission A dynamic model of space-time Black Sigatoka has been developed at the scale of a territory from surveys enMartinique during the period of invasion of the disease from September 2010 to May 2012. The data collected being censored, inference of model parameters has was performed in a Bayesian framework, using a data augmentation algorithm. The model developed and inference possible to reconstruct the spatiotemporal dynamics of the invasion and predict the end of the invasion territoire.Les two spatio-temporal dynamics models developed at two different spatial scales has been gained important information for build tools design method of control of black Sigatoka of banana
Vasconcelos, Emanuel Novaes. "A sigatoka-negra da bananeira (Mycosphaerella fijiensis Morelet) no estado de Minas Gerais: estudo de caso." Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/5871.
Full textBlack Sigatoka, caused by Mycosphaerella fijiensis, is one of the most detrimental diseases for banana plantations in Brazil and worldwide. Although its occurrence in the state of Minas Gerais (MG) was first reported in 2004, the fears of economic disaster to banana growers never materialized along the past ten years. There is a clear paradox in this case, for a disease known to be devastating to this crop. Here this paradox is examined in detail and a narrative of the events that preceded and followed the first reports of the disease in MG. The initiatives taken by federal and state agencies to control the spread of the disease are discussed as well as the reasons and body of legislation behind the decisions that were taken along the years. A visit was made to the Zona da Mata region in Minas Gerais in areas regarded as being "positive" for the occurrence of the disease was performed. Interviews with banana growers in this region as well as extension workers, scientists and other professionals involved with the issue since 2004 were made. In addition, we analyzed data from surveys carried out by different groups at different occasions after the supposed outbreak in 2004. Evidence shows that the disease did not progress to new areas, and in 2007 it was not found in the areas in municipalities that are still strangely considered as "positive for the occurrence of disease". All reports from such studies (published or not) mention the contradiction between the predictions of a disastrous expansion of the disease and the observed continuation of the status quo for banana plantations for all areas in MG. Although awkward, the more acceptable hypothesis is that mistakes in identification of the pathogen have been originally committed. The final elucidation of the paradox is discussed and suggestions for modifying the federal and state legislation and regulations in order to repair the present situation and prevent the emergence of similar situations in the future are presented.
A Sigatoka-negra, causada por Mycosphaerella fijiensis, é uma das doenças mais prejudiciais à cultura da bananeira no Brasil e no mundo. Embora sua ocorrência tenha sido relatada pela primeira vez em 2004 no Estado de Minas Gerais, o temido desastre econômico esperado para os bananicultores do estado, passados dez anos, não se confirmou. Há um claro paradoxo neste caso, para uma doença sabidamente devastadora para a cultura. Realizou-se aqui um estudo deste paradoxo, pretendendo-se construir uma narrativa dos eventos que antecederam e se seguiram a esta ocorrência em MG, avaliando-se como as iniciativas para o controle da disseminação da doença foram conduzidas pelos órgãos de defesa agropecuária federal e estadual e como foram embasadas suas decisões, bem como discutindo o impasse gerado pelas imperfeições da legislação em vigor a cada tempo. Uma visita à região da Zona da Mata mineira em , em que foram feitas entrevistas com bananicultores desta região, assim como técnicos e profissionais envolvidos com o tema e que participaram de forma efetiva dos trabalhos conduzidos a partir de 2004. Além disso, analisaram-se os dados de levantamentos e monitoramentos realizados no período subsequente a 2004, mostrando que a doença não avançou para novas áreas, e que a partir de 2007 ela não foi encontrada nas áreas que ainda Todos os estudos posteriores a 2004 (publicados ou não) citam a contradição entre as previsões sobre um avanço do fungo e a observada continuação do status quo para a bananicultura mineira. A hipótese mais aceitável, embora embaraçosa, é a de que equívocos na identificação do patógeno tenham sido cometidos. A resolução final da situação paradoxal que se vive nesta questão em Minas Gerais é discutida e sugestões para a modificação da legislação e normas federais e estaduais de modo a corrigir este problema e problemas futuros são apresentadas.
Coello, Danilo Isaac Vera. "Componentes epidemiológicos e progresso da Sigatoka negra em bananeira e bananeira-da-terra." Universidade Federal de Viçosa, 2003. http://www.locus.ufv.br/handle/123456789/10120.
Full textMade available in DSpace on 2017-04-24T12:31:48Z (GMT). No. of bitstreams: 1 texto completo.pdf: 486412 bytes, checksum: ea7846af4d8a5809764bfecb46fb6ed2 (MD5) Previous issue date: 2003-12-17
A sigatoka negra, causada pelo fungo Mycosphaerella fijiensis, ocasiona perdas que oscilam entre 50 a 100% na produção de bananeira e bananeira-da-terra. Visando obter informação sobre epidemias da sigatoka negra em ambas as musáceas, realizaram-se dois experimentos. No primeiro, avaliaram-se os componentes epidemiológicos: períodos de incubação e latente médio; severidade aos 24 e 40 dias; freqüência de infecção; intervalo, em dias, para atingir a severidade máxima; dias transcorridos do aparecimento de sintomas até atingir a severidade máxima; e as áreas abaixo da curva da severidade e da porção necrosada. Verificou-se que M. fijiensis não foi específico para bananeira ou bananeira-da-terra e que as populações variam quanto à agressividade. A inoculação artificial em mudas pode ser usada para avaliar componentes de resistência de diferentes genótipos à doença. No segundo experimento, estudou-se o progresso da doença em plantações comerciais de bananeira 'Williams' e bananeira-da-terra 'Barraganete', durante as épocas seca e chuvosa. Independentemente da época avaliada, os valores de área abaixo da curva da severidade estimados para bananeira foram maiores que para bananeira-da-terra. Na época chuvosa, o progresso da doença foi maior que na época seca. Em bananeira-da-terra, detectou-se correlação significativa da severidade e o número de horas semanais com temperatura entre 24 e 28°C e umidade relativa maior de 90%, quando se consideraram os valores das variáveis climatológicas registrados quatro e três semanas antes da severidade, nas épocas seca e chuvosa, respectivamente. Não se detectou correlação significativa de severidade e intensidade de precipitação pluviométrica, nas duas épocas avaliadas. Este é o primeiro relato de estudos de sigatoka negra em bananeira-da-terra no Equador, nas épocas seca e chuvosa. É, também, o primeiro estudo de componentes epidemiológicos de isolados equatorianos de M. fijiensis. Os resultados obtidos serão importantes para subsidiar o manejo da sigatoka negra, bem como programas de melhoramento que visem obter resistência a M. fijiensis.
Black sigatoka, caused by the fungus Mycosphaerella fijiensis, is the most important leaf disease of banana and plantain crops, causing 50 to 100% production losses. To generate information regarding black sigatoka epidemics on both Musacea, two experiments were conducted. In the first, isolates of M. Fijiensis obtained from diseased leaves of banana and plantain from several regions of Ecuador, were inoculated in banana and plantain plantlets. The following epidemic components were evaluated: mean incubation and latent periods, initial severity, infection frequency, number of lesions/leaf area, days to reach maximum severity, area under disease progress curve for severity, and area under disease progress curve of leaf necrosis. Regarding all components, it was found that M. fijiensis was not specific for either banana or plantain, and that there is variability in fungal aggressiveness. It was concluded that artificial inoculation of M. fijiensis in plantlets can be used in evaluating disease resistance components of different genotypes. In the second experiment, disease progress was studied in commercial crops of banana 'Williams' and plantain 'Barraganete', during dry and rainy seasons. In both seasons, area under disease progress curve (AUDPC) on banana was higher than AUDPC for iplantain. Values of AUDPC in plantain were higher in the rainy season than in the dry season. Correlation analysis was done between weather variables and disease severity in plantains. Disease severity was not correlated with temperature, relative humidity, or precipitation. Significant correlation was detected between severity and both number of hours with temperature ranging from 24 to 28° C and relative humidity higher than 90%, when these variables were registered four or three weeks before severity assessment, in either dry or rainy seasons, respectively. This is the first report of epidemiological studies of Black Sigatoka in plantains in the dry and rainy seasons, in Ecuador. It is also the first study of aggressiveness components of M. fijiensis, which may become important to assist future breeding programs to obtain resistance against the pathogen.
Dissertação importada do Alexandria
Carlier, Jean. "Etude de la structure des populations, par rflp, de mycosphaerella fijiensis, agent responsable de la maladie des raies noires des bananiers." Paris 11, 1994. http://www.theses.fr/1994PA112227.
Full textOnautshu, Odimba Didy, Anne Legrève, and Djailo Benoît Dhed'A. "Caractérisation des populations de Mycosphaerella fijiensis et épidémiologie de la cercosporiose noire du bananier dans la région de Kisangani, RDC." Phd thesis, 2013. http://tel.archives-ouvertes.fr/tel-00920881.
Full textHoß, Reinhart [Verfasser]. "Untersuchungen zur Funktion und Spezifizität pilzlicher Sekundärmetaboliten im Pathosystem "Schwarze Sigatokakrankheit" der Banane (Musa sp - Mycosphaerella fijiensis) / vorgelegt von Reinhart Hoß." 1998. http://d-nb.info/98616478X/34.
Full textBook chapters on the topic "Mycosphaerella fijiensis/bananier"
Coelho, Elizangela Barbosa, Luzia Correa Dunenemann, and Francenilson da silva. "LEVANTAMENTO FITOPATOLÓGICO DE DOENÇAS DA BANANEIRA COM ÊNFASE À SIGATOKA NEGRA (Mycosphaerella fijiensis, MORELET) EM ASSENTAMENTOS NO MUNICÍPIO DE THEOBROMA – RONDÔNIA." In Aspectos Fitossanitários da Agricultura, 93–100. Atena Editora, 2020. http://dx.doi.org/10.22533/at.ed.40920130311.
Full text