Academic literature on the topic 'Citrus sinensis (L)'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Citrus sinensis (L).'

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 "Citrus sinensis (L)"

1

Bentahar, Assia, Amel Bouaziz, Saliha Djidel, and Seddik Khennouf. "Phenolic content and antioxidant activity of ethanolic extracts from Citrus sinensis L. and Citrus reticulata L. fruits." Journal of Drug Delivery and Therapeutics 10, no. 5-s (October 30, 2020): 308–13. http://dx.doi.org/10.22270/jddt.v10i5-s.4537.

Full text
Abstract:
Citrus fruits, in particular the genus Citrus, are very rich in antioxidants which have beneficial effects on human health. The objective of this study was to evaluate the phenolic content and the antioxidant activity of the ethanolic extracts from orange (Citrus sinensis L.) and mandarin (Citrus reticulata L.) fruits. The quantitative estimation of the total phenolic content in the two extracts revealed their richness in these compounds. The results obtained showed that the polyphenols content were 159.66 ± 2.62 mg GAE / g of dry extract and 127.33 ± 2.32 mg GAE / g of dry extract for C. sinensis and C. reticulata, respectively.The quantification of flavonoids content showed that the ethanolic extracts of C. sinensis and C. reticulata contained 0.85 ± 0.01 mg QE / g of dry extract and 0.876 ± 0.073 mg QE / g of dry extract, respectively. Whereas, the tannins contents were 46.32 ± 1.02 mg TAE / g of dry extract for C. sinensis and 47.65 ± 1.36 mg TAE / g of dry extract for C. reticulata. In vitro antioxidant activity was evaluated using two tests: the reducing power and the hydroxyl radical scavenger test. The evaluation of the two extracts by the ferric iron reducing power test showed an EC50 value of 0.882 ± 0.037 mg / ml for C. sinensis extract and an EC50 of 1.085 ± 0.068 mg / ml for C. reticulata extract. In addition, C. sinensis and C. reticulata showed good hydroxyl radical scavenging effect with IC50 values of 0.303 ± 0.026 mg /ml and 0.572 ± 0.100 mg / ml for C. sinensis and C. reticulata, respectively. These results suggested that these fruit extracts could be good sources of phenolic compounds and ingredients with high antioxidant potential. Keywords: Citrus sinensis, Citrus reticulata, Polyphenols, Flavonoids, Tannins, Antioxidant activity.
APA, Harvard, Vancouver, ISO, and other styles
2

Haag, H. P., L. E. Gutierrez, A. R. Dechen, F. A. A. Mourão Filho, and C. S. Moreira. "Variação de matéria seca e de nutrientes nas folhas e nos frutos, produção de ácido ascórbico e suco, em seis cultivares de citros, durante um ciclo." Scientia Agricola 50, no. 2 (September 1993): 193–203. http://dx.doi.org/10.1590/s0103-90161993000200005.

Full text
Abstract:
De uma plantação de citros, com os cultivares T. Cravo (Citrus reticulata Blanco), L.Hamlin (Citrus sinensis (L.) Osbeck), T. Murcott (Citrus reticulata Blanco x Citrus sinensis (L.) Osbeck), L. Natal (Citrus sinensis (L.) Osbeck, L. Valencia (Citrus sinensis (L.) Osbeck) e L. Pera (Citrus sinensis (L.) Osbeck), situada na "Fazenda Sete Lagoas", no município de Mogi-Guaçu (22° 22% 46° 56'W.Gr.), em Latossolo Vermelho amarelo, fase arenosa, foram coletados frutos 30 dias após florescimento, até a idade da coleta comercial. No material coletado, foram determinadas a variação da matéria seca, a concentração dos macro e micronutrientes nas folhas adjacentes ao fruto, a extração de macro e micronutríentes pelos frutos, a produção de suco (ml) por fruto e a concentração de ácido ascórbico (mg/100 ml de suco). Concluiu-se que: 1. O aumento da matéria seca, intensifica-se a partir do segundo mês apos o florescimento; 2. Com exceção da T. Cravo, ocorre uma diminuição na produção de matéria seca no final do ciclo; 3. A concentração dos macro e micronutrientes nas folhas apresenta oscilações durante o desenvolvimento do fruto; 4. A ordem decrescente de extração de nutrientes é: K, N, Ca, Mg, P = S, Fe, B, Zn, Mn, Cu; 5. A capacidade de exportação de nutrientes pelos cultivares é, em ordem decrescente: L. Pera, L. Hamlin = T. Cravo, T. Murcott, L. Valencia, L. Natal; 6. A quantidade de suco produzido por fruto, oscila entre 43 a 95 ml; 7. A concentração de ácido ascórbico (mg/100 ml de suco), varia entre 30 a 95.
APA, Harvard, Vancouver, ISO, and other styles
3

VIUDA-MARTOS, M., Y. RUIZ-NAVAJAS, J. FERNÁNDEZ-LÓPEZ, and J. PEREZ-ÁLVAREZ. "ANTIBACTERIAL ACTIVITY OF LEMON (CITRUS LEMON L.), MANDARIN (CITRUS RETICULATA L.), GRAPEFRUIT (CITRUS PARADISI L.) AND ORANGE (CITRUS SINENSIS L.) ESSENTIAL OILS." Journal of Food Safety 28, no. 4 (October 22, 2008): 567–76. http://dx.doi.org/10.1111/j.1745-4565.2008.00131.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Viuda-Martos, M., Y. Ruiz-Navajas, J. Fernández-López, and J. Pérez-Álvarez. "Antifungal activity of lemon (Citrus lemon L.), mandarin (Citrus reticulata L.), grapefruit (Citrus paradisi L.) and orange (Citrus sinensis L.) essential oils." Food Control 19, no. 12 (December 2008): 1130–38. http://dx.doi.org/10.1016/j.foodcont.2007.12.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Fleisher, Zhenia, and Alexander Fleisher. "Sweet Orange Leaf Oil (Citrus sinensis(L.) Osbeck)." Journal of Essential Oil Research 2, no. 4 (July 1990): 203–5. http://dx.doi.org/10.1080/10412905.1990.9697862.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Liu, Xing Yan, Meng Lin Fan, Huai You Wang, Bo yang Yu, and Ji Hua Liu. "Metabolic profile and underlying improved bio-activity of Fructus aurantii immaturus by human intestinal bacteria." Food & Function 8, no. 6 (2017): 2193–201. http://dx.doi.org/10.1039/c6fo01851c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fahrurroji, Andhi, and Hafrizal Riza. "Karakterisasi Ekstrak Etanol Buah Citrus amblycarpa (L), Citrus aurantifolia (S.), dan Citrus sinensis (O.)." JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA 7, no. 2 (November 30, 2020): 100. http://dx.doi.org/10.20473/jfiki.v7i22020.100-113.

Full text
Abstract:
Pendahuluan: Buah jeruk manis (Citrus amblycarpa (L)), jeruk nipis (Citrus aurantifolia (S.)), dan jeruk sambal (Citrus sinensis (O.)) memiliki potensi yang sangat besar khususnya kandungan senyawa metabolit sekunder. Tujuan: Pada penelitian ini bertujuan untuk mengetahui karakteristik spesifik dan non spesifik berbagai jenis buah jeruk tersebut pada pelarut etanol 60%. Metode: Ekstrak yang diperoleh ditentukan parameter nonspesifik dan parameter spesifik ekstraknya dari masing-masing ekstrak dari komponen buah jeruk tersebut. Hasil: Berdasarkan hasil pengamatan yang dilakukan Ekstrak etanol 60% kulit dan biji serta air pada buah jeruk tersebut dengan nilai rendemen tertinggi diperoleh pada ekstrak etanol 60% biji jeruk sambal dengan rendemen yang dihasilkan sebesar 25,28%. Seluruh sampel mengandung senyawa fenolik dan flavonoid pada uji tabung. Pada uji KLT fase diam silica gel 60 F254 untuk identifikasi saponin dengan fase gerak kloroform : metanol : air (64 : 50 : 1) dan identifikasi flavonoid menggunakan fase gerak asam asetat glasial : asam formiat : air : etil asetat (11 : 11 : 27 : 100) pada kedua senyawa tersebut menunjukkan reaksi positif pada seluruh sampel uji. Kadar air untuk sampel air jeruk berkisar antara 8,149% - 9,748%. Kesimpulan: Nilai rendemen tertinggi diperoleh pada ekstrak etanol 60% biji jeruk sambal sebesar 25,28%. Pada uji KLT fase diam silica gel 60 F 254 untuk identifikasi saponin dan flavonoid seluruh sampel menunjukkan reaksi positif. Serta kadar abu seluruh sampel pada rentang 2,722 - 5,442%.
APA, Harvard, Vancouver, ISO, and other styles
8

Družić, Jasmina, Igor Jerković, Zvonimir Marijanović, and Marin Roje. "Chemical biodiversity of the leaf and flower essential oils of Citrus aurantium L. from Dubrovnik area (Croatia) in comparison with Citrus sinensis L. Osbeck cv. Washington navel, Citrus sinensis L. Osbeck cv. Tarocco and Citrus sinensis L. Osbeck cv. Doppio Sanguigno." Journal of Essential Oil Research 28, no. 4 (March 11, 2016): 283–91. http://dx.doi.org/10.1080/10412905.2016.1159258.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Almeida, Weliton Antonio Bastos de, Francisco de Assis Alves Mourão Filho, Beatriz Madalena Januzzi Mendes, Alexandra Pavan, and Adriana Pinheiro Martinelli Rodriguez. "Agrobacterium-mediated transformation of Citrus sinensis and Citrus limonia epicotyl segments." Scientia Agricola 60, no. 1 (February 2003): 23–29. http://dx.doi.org/10.1590/s0103-90162003000100005.

Full text
Abstract:
Genetic transformation allows the release of improved cultivars with desirable characteristics in a shorter period of time and therefore may be useful in citrus breeding programs. The objective of this research was to establish a protocol for genetic transformation of Valencia and Natal sweet oranges (Citrus sinensis L. Osbeck) and Rangpur lime (Citrus limonia L. Osbeck). Epicotyl segments of germinated in vitro plantlets (three weeks in darkness and two weeks in a 16-h photoperiod) were used as explants. These were co-cultivated with Agrobacterium tumefaciens strain EHA-105 and different experiments were done to evaluate the transformation efficiency: explants were co-cultivated with Agrobacterium for one, three or five days; explants were incubated with Agrobacterium suspension for 5, 10, 20 or 40 minutes; co-cultivation medium was supplemented with acetosyringone at 0, 100 or 200 µmol L-1; Explants ends had a longitudinal terminal incision (2-3 mm); co-cultivation temperatures of 19, 23 or 27°C were imposed. The experimental design was completely randomized in all experiments with five replications, each consisted of a Petri dish (100 x 15 mm) with 30 explants and resulted in a total of 150 explants per treatment. Longitudinal terminal incision in the explant ends did not improve shoot regeneration. However, transgenic plants of all three cultivars were confirmed from explants that had been subjected to inoculation time of 20 minutes, co-culture of three days at 23-27°C, in the absence of acetosyringone.
APA, Harvard, Vancouver, ISO, and other styles
10

Zhou, Carol L. Ecale, El-Desouky Ammar, Hany Sheta, Sandra Kelley, MaryLou Polek, and Diane E. Ullman. "Citrus tristeza virus ultrastructure and associated cytopathology in Citrus sinensis and Citrus aurantifolia." Canadian Journal of Botany 80, no. 5 (May 1, 2002): 512–25. http://dx.doi.org/10.1139/b02-030.

Full text
Abstract:
Citrus tristeza virus ultrastructure and associated cytopathology was documented with three isolates and two hosts, sweet orange 'Madam vinous' (Citrus sinensis (L.) Osbeck) and Mexican lime (Citrus aurantifolia (L.) Swingle). Virions were long, flexuous, and disorganized or in swirled, parallel masses. Infection was common in phloem parenchyma and companion cells and less frequent in mature sieve elements. Immunogold labeling confirmed previous findings that the major coat protein encapsidated the length of purified virions, while the minor coat protein encapsidated one terminal. Three types of inclusions were observed: (i) viral arrays that reacted with antibodies against the major (p25) and minor (p27) Citrus tristeza virus coat proteins, (ii) fibrous inclusions that reacted with antibodies against the Citrus tristeza virus p20 gene product but were sparsely labeled with antibodies against either coat protein, and (iii) accumulated cytoplasmic vesicles associated with aggregated, vesiculating mitochondria. The latter resembled Beet yellows virus-like vesicles, which are typical of closterovirus infection, but did not react with any of our antibodies. Cytopathology did not differ between isolates and plant hosts. Most effects were observed in phloem parenchyma cells, including chloroplast degradation, mitochondria vesiculation, and nuclear membrane invagination. Multivesicular bodies and lipid-filled vesicles were abundant in the cytoplasm. Masses of electron-lucent vesicles and electron-dense bodies were present between the cell membrane and cell wall.Key words: immunolocalization, CTV major coat protein, CTV minor coat protein, CTV p20 gene product, inclusions, isolate severity.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Citrus sinensis (L)"

1

Banda, Mathew. "Validating sap flux density measurement methods in Citrus sinensis (L.)." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/65914.

Full text
Abstract:
Sap flux density (SFD) measurements methods have been widely used in woody plants to accurately quantify tree water use (transpiration). Two different methods viz., heat ratio method (HR) and the compensation heat pulse (CHP) were tested against a pre-calibrated mini-weighing lysimeter (gravimetric method) that served as the control. The experiments were conducted on large potted Citrus sinensis (‘Midknight’ Valencia trees) in a glasshouse at the University of Pretoria. The main aim was to compare these methods and establish the most reliable and accurate method to be used to estimate transpiration in citrus trees. A strong positive linear relationship between the HR method and gravimetric method (R2 = 0.98) was obtained when a wound width of 2.0 mm (width of the widest probe) was used, with tree transpiration underestimated by an average of 1.08 % day-1. The CHP method was satisfactorily accurate as indicated by an R2 value of 0.91 and an overestimation of tree transpiration by an average of 1.23 % day-1. However, a large portion of missing data was one of the challenging factors to adopt the CHP method. The measurements also showed evidence of a time lag between sap flow measured with the CHP and HR method and transpiration measured with the gravimetric method, indicating some degree of capacitance in these potted trees. Although validation of the methods in potted citrus against a weighing lysimeter showed that both the HR and CHP methods accurately estimated transpiration, it was important to assess the methods in commercial orchards where long term measurements were to be made. The HR and CHP methods were tested in a commercial Citrus sinensis (‘Washington’ Navels) orchard for their ability to quantify transpiration under field conditions. Field trials were conducted on Patrysberg farm near Citrusdal from 10 - 14 March 2015. Micrometeorological measurements for the estimation of evapotranspiration (ET) were performed using an EC (eddy covariance) system and soil evaporation (Es) was determined using the microlysimeters. Transpiration (Tres) was calculated as a residual of ET and Es and compared with transpiration (Tsap) determined by the CHP and HR method. In comparison to Tres the HR method (R2 = 0.97) resulted in a better agreement than the CHP method (R2 = 0.80) when a wound width of 2.5 mm corresponding to the width of the widest probe was used. However, both the HR and CHP methods underestimated orchard transpiration by 42 % and 36 % respectively, when compared to Tres. The underestimation was mainly attributed to an underestimation of the wound width and possible additive errors, which includes the scaling of whole tree water use to orchard water use and errors in the determination of soil evaporation. Even though the SFD methods underestimated transpiration, the good agreement between the SFD methods and Tres enabled the calibration of SFD methods. As wound width is one of the most difficult parameters to determine for the upscalling of heat pulse velocities to sap flow in the field, wound width was used to calibrate the CHP and the HR methods. For the CHP method a virtual wound width of 3.6 mm resulted in the best agreement between Tres and Tsap (1.4% overestimation of transpiration), whilst for the HR method a virtual wound width of 4.4 mm resulted in the best agreement between the two measurement methods (0.4% underestimation). At the end of the measurements the actual wound width was determined and was on average 4.7 mm for HR method probe sets. In situ stem staining was also performed at this time to determine the sapwood depth and heartwood radius. Using these measurements the calculated Tsap underestimated Tres by 5 % on average per day. Provided accurate estimates of wound width and sapwood conducting area are obtained at the end measurement period the HR and CHP methods can be used with confidence in Citrus sinensis. However, it is advised that during the measurement period a calibration is performed against an independent measure of transpiration, as wound width and sapwood conducting area do vary between trees and are difficult to determine with a great degree of accuracy.
Dissertation (MSc (Agric))--University of Pretoria, 2017.
Plant Production and Soil Science
MSc (Agric)
Unrestricted
APA, Harvard, Vancouver, ISO, and other styles
2

Costa, Fabiano de Mello. "Ocorrência de espécies de afídeos em citros (Citrus sinensis (L.) Osbeck), seus predadores e parasitórides." Universidade Federal de São Carlos, 2006. https://repositorio.ufscar.br/handle/ufscar/1912.

Full text
Abstract:
Made available in DSpace on 2016-06-02T19:31:36Z (GMT). No. of bitstreams: 1 1122.pdf: 1068286 bytes, checksum: a575d1f526d68c56cf3078d54928ba2a (MD5) Previous issue date: 2006-05-30
Financiadora de Estudos e Projetos
The populational floatation of the aphids Aphis spiraecola (Patch, 1914), Aphis gossypii (Glover, 1887), Toxoptera aurantii (Boyer de Foscolombe, 1841) and Toxoptera citricidus (Kirkald, 1907) was studied and related to climate variations from May of 2004 to April of 2005, through the use of Pearsons s Correlation Analysis. The sampling was carried out every two weeks, through Möericke trap. The highest populational densities of A. gossypii occurred in August and September of 2004, and in the latter the populational peak was verified. From July to September of 2004, it was verified the most intense incidences of T. aurantii, and the highest peak occurred in August of 2004. T citricidus did not present significative correlation with any of the studied climate factors, although higher populational densities in the months of May, June and August of 2004, and the second week of January, 2005, were observed. A. spiraecola predominated over the other species, with populational peaks from May to August of 2004, and in the third week of December of 2004. The populational peak of this specie occurred in August of 2004. It was obtained a positive statistical correlation among the populations of these aphids with thermic extent and the number of dry weather days. Negative correlation, in relation to relative humidity was observed only for A. gossypii. In the space between lines of the citrus culture, 22 infestating plants were identified, among which Annona coriacea M. (Anonaceae), host for T aurantii, Bidens pilosa L. (Asteraceae), host for A. spiraecola, and the infesting Emilia sonchifolia (L) DC (Asteraceae), Sonchus oleraceus L. (Asteraceae), Cassia sp (Leguminosae), Sida glaziovii K. Sch., Sida rhombfolia L., Sida urens L. (Malvaceae), Solanum americanum Mill and Solanum erianthum D. Don (Solanaceae) infested by A. gossypii, must be controlled because they are focuses of aphids that are detrimental to the culture. As for natural enemies, the parasitoid species found more often were the hymenopters of the Aphidiidae Family, Lysiphlebus testaceipes (Cresson, 1880) and Aphidius colemani (Viereck, 1912). In the predatory group, the Coccinellidae Family presented the largest number of species, being Hippodamia convergens (Guérrin-Meneville) the most frequent, followed by Cycloneda sanguinea (Linnaeus, 1763) and then by Scymnus sp, while Olla v-nigrun (Germ., 1824), Hyperaspis (Hyperaspis) festiva (Mulsant, 1850) and Hyperaspis sp. were found in smaller quantity during the sampling period. In the predatory group, the Chrysopidae were more abundante, being identified two species: Chrysoperla externa (Hagen, 1861), Ceraeochrysa cincta (Adams, 1982) and eight examples only identified as Leucochrysa (Nodita) sp. Among the Hemerobiidae, only the specie Nusalala tesselata (Gerstaecker, 1888) was observed in small quantities on the citrus leaves.
A flutuação populacional dos afídeos Aphis spiraecola (Patch, 1914), Aphis gossypii (Glover, 1887), Toxoptera aurantii (Boyer de Foscolombe, 1841) e Toxoptera citricidus (Kirkald, 1907) foi estudada, correlacionando-as com as variações climáticas no período de maio de 2004 a abril de 2005, através do uso da Análise de correlação de Pearson. As amostragens foram realizadas, quinzenalmente, através de armadilha Möericke. As maiores densidades populacionais de A. gossypii ocorreram em agosto e setembro de 2004, neste último, constatou-se o pico populacional. No período de julho a setembro de 2004 constatou-se as maiores incidências de T. aurantii, sendo o mês de agosto de 2004 o de maior pico populacional. T. citricidus não apresentou correlação significativa com nenhum dos fatores climáticos estudados, embora tenham sido observados maiores densidades populacionais nos meses de maio, junho e agosto de 2004, e segunda semana de janeiro de 2005. A. spiraecola predominou sobre as demais espécies com picos populacionais nos períodos de maio a agosto de 2004 e na terceira semana de dezembro de 2004. O período de pico populacional desta espécie foi agosto de 2004. Foi obtida correlação estatística positiva entre as populações desses afídeos com a amplitude térmica e o número de dias de estiagem. Correlação negativa, em relação à umidade relativa, foi observada somente para A. gossypii. Foram identificadas nas entrelinhas da cultura de citros, 22 plantas infestantes, das quais Annona coriacea M. (Anonaceae), hospedeira de T. aurantii, Bidens pilosa L. (Asteraceae), hospedeira de A. spiraecola, e as infestantes Emilia sonchifolia (L.) DC (Asteraceae), Sonchus oleraceus L. (Asteraceae), Cassia sp (Leguminosae), Sida glaziovii K. Sch., Sida rhombifolia L., Sida urens L. (Malvaceae), Solanum iv 5 americanum Mill e Solanum erianthum D. Don (Solanaceae) infestadas por A. gossypii, devem ser controladas, pois são focos de afídeos prejudiciais a cultura. Com relação aos inimigos naturais, as espécies de parasitóides mais encontradas, foram os hymenópteros da Família Aphidiidae, Lysiphlebus testaceipes (Cresson, 1880) e Aphidius colemani Viereck, 1912. Do grupo dos predadores a Família Coccinellidae apresentou o maior número de espécies, sendo que Hippodamia convergens (Guérrin-Meneville) foi à espécie mais freqüente, seguida por Cycloneda sanguinea (Linnaeus, 1763) e, posteriormente, Scymnus sp, enquanto que Olla v- nigrum (Germ.; 1824), Hyperaspis (Hyperaspis) festiva Mulsant, 1850 e Hyperaspis sp., foram encontradas em menor quantidade durante o período de amostragens. Entre o grupo dos predadores, os crisopídeos foram os mais abundantes, sendo identificadas duas espécies: Chrysoperla externa (Hagen, 1861), Ceraeochrysa cincta Adams, 1982 e oito exemplares identificados apenas como Leucochrysa (Nodita) sp. Entre os Hemerobiideos, apenas a espécie Nusalala tesselata (Gerstaecker, 1888) foi observada em pequenas quantidades nas folhas de citros.
APA, Harvard, Vancouver, ISO, and other styles
3

Mekbib, SB Regnier Thierry J. C. Sivakumar Dharini Korsten Lise, TJC Regnier, D. Sivakumar, and L. Korsten. "Evaluation of Ethiopian plant extracts, Acacia seyal and Withania somnifera, to control green mould and ensure quality maintenance of citrus (Citrus sinensis L.)." Cirad/EDP Sciences, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001695.

Full text
Abstract:
Abstract Introduction. Green mould, Penicillium digitatum (Pers.: Fr.) Sacc., causes economically important postharvest disease in citrus. Materials and methods. Ethiopian plant extracts of Acacia seyal (Del. Var. Seyal) and Withania somnifera (L.) Dual were used to test the control of green mould in wound-inoculated fruit, stored for 21 d at 7 °C and at > 85% RH. The chemical compositions of the two extracts were determined using high-performance chromatography. Thereafter, freshly harvested (naturally infected) fruit were subjected to different postharvest treatments and stored for 50 d to investigate the effects of the two plant extracts on fruit quality parameters. Treatments included (pre-wax + leaf extracts), (wax + leaf extracts incorporated into wax, Citrosol A®), (leaf extract alone), (fruit washed in chlorinated water at 5.25%), (untreated fruit) and (commercially treated fruit). Results. Extracts of A. seyal and W. somnifera reduced the incidence of green mould by 56.1% and 50%, respectively, in wound-inoculated fruit. A. seyal extract contained a high concentration of gallic acid (60.3 mg·mL–1) whilst W. somnifera contained low concentrations of caffeic acid (8.7 mg·mL–1), salicylic acid (6.3 mg·mL–1) and 3,4 dihydroxy benzoic acid (3.8 mg·mL–1). Green mould was absent in naturally infected fruit subjected to (pre-wax + leaf extracts), (wax mixed with leaf extracts) and (leaf extracts) treatments. (Pre-wax + leaf extracts) and (wax mixed with leaf extract) treatments significantly reduced weight loss; retained firmness and colour; and they maintained eating qualities and a maturity index (SSC/TA) similar to commercial treatment. Conclusion. Both extracts of A. seyal and W. somnifera showed potential to be used as an alternative in combined applications with wax application under low temperature storage to replace synthetic fungicides, to ultimately control green mould and retain overall fruit quality.
APA, Harvard, Vancouver, ISO, and other styles
4

Cabrera, Ronaldo Alberto Duenhas. "Uso de boro e palhada no manejo sustentável e produção de citrus [Citrus sinensis (L.) Osbeck." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-13112007-112428/.

Full text
Abstract:
A citricultura paulista está estabelecida, em sua maioria, em solos com baixos teores de matéria orgânica e, em decorrência deste fato, diversos aspectos associados à carência de nutrientes têm sido atribuídos à baixa disponibilidade da matéria orgânica. Para otimização de sistemas agrícolas que priorizem a sustentabilidade recomenda-se, por exemplo, o uso de cobertura morta (palhada), o incremento de matéria orgânica e a melhoria da fertilidade química física e biológica do solo, resultando em aumento de produtividade, maior estabilidade das produções e melhor disponibilidade de água para as plantas. O presente trabalho estudou em condições de campo, durante quatro safras, os efeitos da adição de cobertura morta ("mulch") - 0, 15 e 30 t.ha-1.ano-1 usando a palhada de gramínea Tifton como fonte de cobertura morta e ácido bórico aplicado via solo, nas doses de 0, 6 e 12 kg.ha-1 como fonte de boro. Foram avaliados, além da produtividade (t.ha-1 e número de frutos.ha-1), os aspectos associados à fertilidade de solo, aspectos físicos e nutricionais associados às variações dos tratamentos nos atributos hídricos do solo, a detecção da presença de carbono da palha no solo por metodologia isotópica do δ13c e δ15N, a atividade da biomassa microbiana, a influência dos tratamentos na qualidade do suco e aspectos econômicos quanto ao uso de palhada e boro no sistema produtivo. O experimento foi conduzido no município de Araras-SP, em pomar de laranja 'Pêra', com 9 tratamentos – 3 doses de palhada e 3 doses de boro, 4 repetições e 4 plantas por parcela, totalizando 144 plantas em um pomar comercial de 8 anos. A aplicação de 15 t.ha-1 e 30 t.ha-1 de palhada proporcionaram um aumento de 3,38 t.ha-1 (15,6%) e 8,89 t.ha-1 (41,1%) respectivamente. Em ambos os casos, a aplicação foi inviável economicamente, pois o custo da aplicação da cobertura morta foi maior que a receita do incremento de produtividade. Para o número de frutos.ha-1 a aplicação de palhada incrementou 9,3% e 24,4% para os tratamentos de 15 t.ha-1 e 30 t.ha-1 respectivamente. Na camada de 0 a 20 cm de profundidade, a biomassa microbiana foi ativada na dose de 30 t.ha-1 de palhada, sendo 64,7% superior à testemunha e 46,9% superior à dose de 15 t.ha-1. A aplicação de palhada de gramínea aumentou a participação de carbono de planta C4 na matéria orgânica do solo, sendo que a participação foi de 44%, 54,8% e 60,9%, para as doses de 0, 15 e 30 t.ha-1 respectivamente, mas a aplicação de palhada não afetou as características hídricas do solo nas profundidades de 20 e 40 cm. O efeito da aplicação de boro foi observado somente em ano de alta produtividade, acima de 40 t.ha-1, com a dose de 12 kg.ha-1 produzindo 5,8 t.ha-1 (16,7%) a mais que a testemunha. A relação foliar K/Ca e o teor de foliar de enxofre afetaram negativamente a produtividade, pois para cada unidade que aumenta na relação K/Ca houve diminuição de 30 t. 30 t-1 e para cada unidade de aumento do teor foliar de enxofre ocorreu redução de 4 t.ha-1. Recomenda-se que a relação K/Ca deve estar em torno de 0,4 e o teor foliar de enxofre em torno de 3 g.kg-1, já a relação P/S afetou positivamente a produtividade, para cada unidade que aumenta nesta relação, ocorreu um aumento de 17 t.ha-1. O aspecto ano é um fator importante, onde o efeito da alternância bienal de alta/baixa safra ficou evidente.
The citrus production in the state of São Paulo has been established in its majority, on soils with low organic matter and due to this fact, several aspects related to the lack of nutrients have been attributed to the low availability of organic matter. To introduce a sustainable management for the citrus production system, the producers have been adopted the use of mulch to cover the plants. This practice has proved to increase the soil organic matter content and has been recommended for mid- and long-term improvement of the physical and chemical and biological parameters of the soil, resulting in higher productivity, a better stability in crop production and higher water availability to the citrus plants. This work studied for 4 citrus growing seasons at field conditions the effects of the addition of mulch at rates of 0, 15 and 30 t.ha-1 added every year, using Tifton as source of mulch and boric acidic added to the soil at rates of 0, 6 and 12 kg.ha-1. Measures included yield (t.ha-1 and fruit number.ha-1), the soil nutrient composition, nutritional parameters associated to the physical and chemical variations in the soil due to the treatments, the isotopic δ13c carbon and δ15N nitrogen variation in the soil due to straw addition, the soil microbial biomass, the fruit (juice) quality and the economic aspects involving the use of these two practices – mulch and boron, in the citrus production system. The experiment was set up in Araras, São Paulo State, in a 8-year old commercial orchard of sweet orange var. Pêra, with 9 treatments – 3 rates of mulch and 3 rates of boron, 4 replicates with 4 plants for plot, in a total of 144 plants. The application of 15 t.ha-1 and 30 t.ha-1 of mulch increased 3,38 t.ha-1 (15,6%) and 8,89 t.ha-1 (41.1%) respectively, in both cases the use of mulch showed not to be economically viable, due to its high cost in the market. The fruit productivity from the mulch treatments increased 9.3% and 24.4%, in treatments with mulch added at the rates 15 t.ha-1 and 30 t.ha-1, respectively. At 0-20 cm soil depth, the microbial biomass increased when 30 t.ha-1 mulch was added, with 64.7% and 46.9%, corresponding to 0 t/ha and 15 t.ha-1 mulch, respectively. The use of Tifton grass as mulch was positively related to increases of carbon from C4-plants in the soil organic matter content, with increases after 4 years of growth as high as 44.4%, 54.8% and 60.9%, corresponding to the rates of 0, 15 and 30 t.ha-1 of mulch. Nevertheless, the addition of mulch has not affected the water content of the soil at 20 and 40 cm depth. The effect of boron was observed only at the high productivity season (more 40 t.ha-1), with the treatment of 12 kg t.ha-1 yielding 5.8 t.ha-1 (16.7%), when compared to the control (0 kg/ha B) treatment. The K/Ca ratio and the S-leaf concentration were negatively correlated with yield, when increases of one unit in K/Ca ratio corresponded to a decrease of 30 t.ha-1 and one unit of S-leaf concentration to minus 4 t.ha-1. It is recommended that K/Ca ratio should be around 0.4 and the S-leaf concentration around 3 g/kg. The leaf ratio P/S affected positively the yield, when increases of one unit in this ratio, corresponded to increases of 17 t.ha-1 in yield increases. The season (year) was an important factor, showing an alternate variation of high/low yield in every two years.
APA, Harvard, Vancouver, ISO, and other styles
5

Silva, Jose Aliçandro Bezerra da. "Florescimento e frutificação em laranjeiras pera (Citrus sinensis L. Osbeck) com clorose variegada dos citros (CVC)." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314824.

Full text
Abstract:
Orientador: Ana Maria Magalhaes Andrade Lagoa
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-03T19:28:28Z (GMT). No. of bitstreams: 1 Silva_JoseAlicandroBezerrada_D.pdf: 770975 bytes, checksum: 69e7a4a44d631538f1676333e00117b6 (MD5) Previous issue date: 2003
Doutorado
APA, Harvard, Vancouver, ISO, and other styles
6

Ribeiro, Ana Paula Dantas. "Influência do suco da laranja Pera (Citrus sinensis) e da laranja Moro (Citrus sinensis (L.) Osbeck) na cardiotoxicidade aguda induzida pela doxorrubicina em ratos." Botucatu, 2019. http://hdl.handle.net/11449/183458.

Full text
Abstract:
Orientador: Bertha Furlan Polegato
Resumo: Introdução: A doxorrubicina é um quimioterápico amplamente utilizado e muito eficaz no tratamento de neoplasias, porém pode levar à cardiotoxicidade, o que pode limitar seu uso. Os mecanismos envolvidos no surgimento da cardiotoxicidade são múltiplos, mas o aumento do estresse oxidativo tem papel fundamental. O suco de laranja contém muitos compostos com potencial antioxidante, como os flavonóides. A composição do suco de laranja pode diferir entre as variedades de laranja e isso pode levar a efeitos biológicos diferentes, como maior atividade antioxidante. Objetivo: Avaliar a influência do suco de laranja Pera (Citrus sinensis) e da Moro (Citrus sinensis (L.) Osbeck) na cardiotoxicidade induzida pela doxorrubicina em ratos. Material e Métodos: Foram utilizados 120 ratos Wistar machos adultos, que foram alocados em 6 grupos: C, LP, LM, D, DLP, DLM. Os grupos C e D receberam água com maltodextrina para igualar a quantidade de carboidratos dos sucos de laranja. Os grupos LP e DLP receberam suco de laranja Pera e os grupos LM e DLM receberam suco de laranja Moro por 4 semanas. Após, os animais dos grupos D, DLP e DLM receberam injeção de doxorrubicina (20mg/kg, IP) e os animais dos grupos C, LP e LM receberam injeção de salina. Quarenta e oito horas após a injeção de doxorrubicina, os animais foram submetidos ao ecocardiograma, medida da pressão intraventricular esquerda e eutanásia para coleta de material biológico. Resultados: Os ratos tratados com doxorrubicina ganharam menos... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Introduction: Doxorubicin is a widely used chemotherapy and very effective in the treatment of cancer, but it can lead to cardiotoxicity, which may limit it’s use. The mechanisms involved in the emergence of cardiotoxicity are multiple, but the increase of oxidative stress plays a fundamental role. Orange juice contains many compounds with antioxidant potential, such as flavonoids. The composition of orange juice may differ between orange varieties and this may lead to different biological effects such as increased antioxidant activity. Objective: To evaluate the influence of Pera (Citrus sinensis) and Moro (Citrus sinensis (L.) Osbeck) orange juice on doxorubicin-induced cardiotoxicity in rats. Material and Methods: We used 120 adult male Wistar rats, which were allocated into 6 groups: C, LP, LM, D, DLP, DLM. Groups C and D were given water with maltodextrin to equalize the amount of carbohydrate in the orange juices. The LP and DLP groups received Pera orange juice and the LM and DLM groups received Moro orange juice for 4 weeks. Afterwards, animals from groups D, DLP and DLM received doxorubicin injection (20mg / kg, PI) and animals from groups C, LP and LM received saline injection. Forty-eight hours after doxorubicin injection, the animals underwent echocardiography, left intraventricular pressure measurement and euthanasia for collection of biological material. Results: Doxorubicin-treated rats gained less weight than untreated rats, probably due to the decreased intak... (Complete abstract click electronic access below)
Mestre
APA, Harvard, Vancouver, ISO, and other styles
7

Knight, Toby George. "Investigation of the physiological basis of the rind disorder oleocellosis in Washington navel orange (Citrus sinensis [L.] Osbeck)." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09AHP/09ahpk71.pdf.

Full text
Abstract:
Includes bibliographical references (leaves 152-164) Microscopy investigations into the oil glands, localisation of the rind oils and the development of oleocellosis have been carried out in Washington navel orange (Citrus sinensis [L.] Osbeck). Aims to develop an improved understanding of the physiological basis of the rind disorder.
APA, Harvard, Vancouver, ISO, and other styles
8

Tavano, Eveline Carla da Rocha. "Transformação genética de Citrus sinensis (L.) Osbeck para resistência a Candidatus Liberibacter ssp." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/64/64133/tde-22042013-161909/.

Full text
Abstract:
A doença Huanglongbing (HLB) associada a bactéria Candidatus Liberibacter spp., que coloniza os vasos do floema, é considerada uma das mais graves doenças de citros. Uma importante estratégia para o controle desta doença consiste na produção de plantas transgênicas, expressando genes que codificam peptídeos antibacterianos especificamente no local de colonização do patógeno. O objetivo deste trabalho foi obter plantas transgênicas de laranja doce, expressando o gene que codifica o peptídeo antibacteriano atacina A (attA) dirigido por promotores específicos para a expressão gênica no floema. O trabalho foi iniciado com a elaboração de construções gênicas contendo o gene attA (associado ou não ao peptídeo sinal), sob o controle dos promotores AtSuc2 (transportador de sacarose), AtPP2 (proteína de floema 2), clonados de Arabidopsis thaliana, ou CsPP2 (proteína de floema 2), clonado de Citrus sinensis. Os experimentos de transformação genética foram realizados com C. sinensis cv. \'Hamlin\', \'Valência\', \'Pêra\' e \'Natal\', via Agrobacterium tumefaciens, utilizando-se segmento de epicótilo como explante. A identificação de plantas transgênicas foi realizada por meio da análise de PCR. Plantas PCR+ foram aclimatizadas e transferidas para casa-de-vegetação específica para o cultivo de plantas transgênicas. Análises de Southern e Northern blot foram realizadas em plantas aclimatizadas, confirmando-se a integração e transcrição do gene attA, respectivamente. A expressão do gene attA também foi confirmada pela análise de RT-qPCR. Plantas de laranja \'Hamlin\' contendo o gene attA (associado ou não ao peptídeo sinal), sob o controle dos promotores AtSuc2 ou AtPP2 foram propagadas por enxertia, para futura avaliação da resistência a Candidatus Liberibacter asiaticus
Huanglongbing (HLB) associated to Candidatus Liberibacter spp., which colonizes the phloem, is considered one of the most serious diseases of citrus. One important strategy to control this disease consists of producing transgenic plants expressing, in the bacteria colonization tissue, genes encoding antibacterial peptides. The objective of this work was to produce transgenic sweet orange plants expressing genes encoding the antibacterial peptide attacin A (attA) driven by phoem-specific promoters. The work started with the development of the gene constructs, containing the attacin A gene (with or without signal peptide) controlled by either sucrose transporter gene (AtSuc2) or phloem protein 2 gene promoters (AtPP2) from Arabidopsis thaliana, or phloem protein 2 gene promotor (CsPP2) from Citrus sinensis. The genetic transformation of C. sinensis \'Hamlin\', \'Valencia\', \'Pera\' and \'Natal\' cultivars was done via Agrobacterium tumefaciens. Epicotyls segments collected from in vitro germinated seedlings were used as explants. Transgenic plants were identified by PCR analyses. PCR positive plants were acclimatized and transferred to specific greenhouse. Integration and transcription of the attA gene was confirmed in acclimatized transgenic plants by Southern and Northern blot analysis, respectively. The attA gene expression was validated by RT-qPCR analysis. \'Hamlin\' transgenic cultivars containing the AtSuc2 or AtPP2 promoters controlling the expression of attA (with or without signal peptide) were propagated by grafting, for future evaluation of Candidatus Liberibacter asiaticus resistance
APA, Harvard, Vancouver, ISO, and other styles
9

Lopes, Aline Cristina [UNESP]. "Expressão gênica de Xanthomonas citri subsp. citri colonizando laranja doce ‘pêra rio’ (Citrus sinensis (L.) Osbeck) e lima ácida ‘galego’ (Citrus aurantifolia Swingle)." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138221.

Full text
Abstract:
Submitted by ALINE CRISTINA LOPES null (line.cl@hotmail.com) on 2016-05-02T12:42:00Z No. of bitstreams: 1 Dissertação_Aline_Cristina_Lopes.pdf: 1995885 bytes, checksum: 09268565881925cc85d0cdbe17aa6d6c (MD5)
Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-05-04T14:14:37Z (GMT) No. of bitstreams: 1 lopes_ac_me_jabo.pdf: 1995885 bytes, checksum: 09268565881925cc85d0cdbe17aa6d6c (MD5)
Made available in DSpace on 2016-05-04T14:14:37Z (GMT). No. of bitstreams: 1 lopes_ac_me_jabo.pdf: 1995885 bytes, checksum: 09268565881925cc85d0cdbe17aa6d6c (MD5) Previous issue date: 2016-04-01
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A citricultura é uma das principais atividades do agronegócio brasileiro. Entretanto, inúmeras pragas e doenças atacam os citros, causando grandes prejuízos econômicos. O cancro cítrico, causado pela bactéria Xanthomonas citri subsp. citri (Xac), é um grave problema para o setor, não havendo ainda um método eficaz para o seu controle. Neste estudo, utilizando RNASeq, foram analisados os perfis transcricionais de Xac inoculada em duas espécies de citros contrastantes à doença: laranja doce ‘Pêra Rio’ (Citrus sinensis L. Osbeck), menos suscetível e lima ácida ‘Galego’ (Citrus aurantifolia Swingle), altamente suscetível, às 48 e 72 horas após a infecção (hai), com o objetivo de identificar genes de Xac envolvidos no processo de infecção. Foram identificados 80 genes de Xac diferencialmente expressos (GDEs) no hospedeiro laranja doce ‘Pêra Rio’, sendo 41 e 39 nos tempos de 48 e 72 hai, respectivamente. Em lima ácida ‘Galego’ foram identificados 82 GDEs, sendo 40 no tempo de 48 hai e 42 em 72 hai. Alguns destes genes diferencialmente expressos foram avaliados pela técnica de PCR quantitativa em tempo real, sendo estes hpa1, hrpE, hrpW, virK, ahpC, katE, katG, cydA e cydB, os quais estão envolvidos na patogenicidade e virulência, na defesa ao estresse oxidativo e na fosforilação oxidativa. Os genes de patogenicidade e virulência foram induzidos em Xac em ambos os hospedeiros, enquanto que os genes relacionados à cadeia respiratória foram inibidos em ambos os hospedeiros, com maior inibição em lima ácida ‘Galego’. No entanto, os genes relacionados ao estresse oxidativo apresentaram um perfil de expressão maior em Xac na interação com laranja doce ‘Pêra Rio’ do que em lima ácida ‘Galego’, principalmente ahpC e katG. A determinação da concentração de H2O2 nas folhas revelou que laranja doce ‘Pêra Rio’, espécie menos suscetível ao cancro cítrico, possui maior quantidade de H2O2 do que lima ácida ‘Galego’, espécie altamente suscetível. Isso sugere que a menor susceptibilidade ao cancro cítrico da laranja ‘Pêra Rio’ pode estar relacionada com a maior quantidade de H2O2 presente nesta espécie, o que leva a bactéria a ativar seu arsenal de enzimas para combater o estresse oxidativo do meio, retardando a infecção.
The citrus industry is one of the main activities of Brazilian agribusiness. However, many pests and diseases attack citrus, causing great economic losses. The citrus canker, caused by Xanthomonas citri subsp. citri (Xac), is a major problem for the sector, there is not yet an effective method for its control. In this study, the transcriptional profiles of Xac inoculated in two species of contrasting citrus disease were analyzed using RNA-Seq : sweet orange 'Pêra Rio' (Citrus sinensis L. Osbeck), moderately tolerant and Mexican Lime 'Galego' (Citrus aurantifolia Swingle) highly susceptible at 48 and 72 hours after infection (hai) aiming to identify Xac genes involved in the infection process. We identified 80 Xac differentially expressed genes (DGE) in sweet orange 'Pera Rio', 41 and 39 at 48 and 72 hai, respectively. In Mexican Lime 'Galego' 82 DGE were identified, 40 at 48 and 42 at 72 hai. Some of these differentially expressed genes were evaluated by real time quantitative PCR : hpa1, hrpE, hrpW, Virk, ahpC, KatE, katG, cyda and cydB, which are involved in pathogenicity and virulence, oxidative stress defense and oxidative phosphorylation. The pathogenicity and virulence genes were induced in Xac in both hosts, whereas the respiratory chain-related genes were inhibited in both hosts with greater inhibition in Mexican lime 'Galego'. However, genes related to oxidative stress showed a higher expression profile in Xac interaction with sweet orange 'Pera Rio' than with Mexican lime 'Galego', mainly ahpC and katG. The determination of H2O2 concentration in leaves revealed a higher amount of H2O2 in sweet orange 'Pêra Rio' moderately tolerant to citrus canker, than in Mexican Lime 'Galego' highly susceptible to citrus canker. The results suggests that the lower susceptibility to citrus canker orange 'Pera Rio' may be related to the greater amount of H2O2 present in this specie, which leads the bacteria to activate their arsenal of enzymes to fight oxidative stress environment, slowing the infection.
APA, Harvard, Vancouver, ISO, and other styles
10

Lopes, Aline Cristina. "Expressão gênica de Xanthomonas citri subsp. citri colonizando laranja doce 'pêra rio' (Citrus sinensis (L.) Osbeck) e lima ácida 'galego' (Citrus aurantifolia Swingle) /." Jaboticabal, 2016. http://hdl.handle.net/11449/138221.

Full text
Abstract:
Orientador: Jesus Aparecido Ferro
Coorientador: Roberto Hirochi Herai
Coorientador: Juliana da Silva Vantini
Banca: José Belasque Júnior
Banca: Priscila Lupino gatão
Resumo: A citricultura é uma das principais atividades do agronegócio brasileiro. Entretanto, inúmeras pragas e doenças atacam os citros, causando grandes prejuízos econômicos. O cancro cítrico, causado pela bactéria Xanthomonas citri subsp. citri (Xac), é um grave problema para o setor, não havendo ainda um método eficaz para o seu controle. Neste estudo, utilizando RNASeq, foram analisados os perfis transcricionais de Xac inoculada em duas espécies de citros contrastantes à doença: laranja doce 'Pêra Rio' (Citrus sinensis L. Osbeck), menos suscetível e lima ácida 'Galego' (Citrus aurantifolia Swingle), altamente suscetível, às 48 e 72 horas após a infecção (hai), com o objetivo de identificar genes de Xac envolvidos no processo de infecção. Foram identificados 80 genes de Xac diferencialmente expressos (GDEs) no hospedeiro laranja doce 'Pêra Rio', sendo 41 e 39 nos tempos de 48 e 72 hai, respectivamente. Em lima ácida 'Galego' foram identificados 82 GDEs, sendo 40 no tempo de 48 hai e 42 em 72 hai. Alguns destes genes diferencialmente expressos foram avaliados pela técnica de PCR quantitativa em tempo real, sendo estes hpa1, hrpE, hrpW, virK, ahpC, katE, katG, cydA e cydB, os quais estão envolvidos na patogenicidade e virulência, na defesa ao estresse oxidativo e na fosforilação oxidativa. Os genes de patogenicidade e virulência foram induzidos em Xac em ambos os hospedeiros, enquanto que os genes relacionados à cadeia respiratória foram inibidos em ambos os hospedeiros, com maior ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The citrus industry is one of the main activities of Brazilian agribusiness. However, many pests and diseases attack citrus, causing great economic losses. The citrus canker, caused by Xanthomonas citri subsp. citri (Xac), is a major problem for the sector, there is not yet an effective method for its control. In this study, the transcriptional profiles of Xac inoculated in two species of contrasting citrus disease were analyzed using RNA-Seq : sweet orange 'Pêra Rio' (Citrus sinensis L. Osbeck), moderately tolerant and Mexican Lime 'Galego' (Citrus aurantifolia Swingle) highly susceptible at 48 and 72 hours after infection (hai) aiming to identify Xac genes involved in the infection process. We identified 80 Xac differentially expressed genes (DGE) in sweet orange 'Pera Rio', 41 and 39 at 48 and 72 hai, respectively. In Mexican Lime 'Galego' 82 DGE were identified, 40 at 48 and 42 at 72 hai. Some of these differentially expressed genes were evaluated by real time quantitative PCR : hpa1, hrpE, hrpW, Virk, ahpC, KatE, katG, cyda and cydB, which are involved in pathogenicity and virulence, oxidative stress defense and oxidative phosphorylation. The pathogenicity and virulence genes were induced in Xac in both hosts, whereas the respiratory chain-related genes were inhibited in both hosts with greater inhibition in Mexican lime 'Galego'. However, genes related to oxidative stress showed a higher expression profile in Xac interaction with sweet orange 'Pera Rio' than with Mexica... (Complete abstract click electronic access below)
Mestre
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Citrus sinensis (L)"

1

Azimova, Shakhnoza S., and Anna I. Glushenkova. "Citrus sinensis (L.) Osbeck. (C. aurantium Risso)." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 820. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_2652.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Razeto, Bruno, and Alejandro Salas. "Magnesium, Manganese and Zinc Sprays on Orange Trees (Citrus Sinensis (L.) Osbeck)." In Foliar Fertilization, 255–70. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4386-5_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sendin, Lorena Noelia, and María Paula Filippone. "The Genetic Transformation of Sweet Orange (Citrus sinensis L. Osbeck) for Enhanced Resistance to Citrus Canker." In Methods in Molecular Biology, 179–90. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8778-8_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Costa, Marcio G. C., Amanda F. S. Mendes, Luciana C. Cidade, Walter S. Soares-Filho, Wagner C. Otoni, and Gloria A. Moore. "Towards Metabolic Engineering of Carotenoid Content in Sweet-orange (Citrus sinensis (L.) Osb.)." In Biotechnology and Sustainable Agriculture 2006 and Beyond, 223–25. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6635-1_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yamamoto, M., S. Kobayashi, T. Yoshioka, and R. Matsumoto. "Cybridization in Citrus unshiu Marc. (Satsuma Mandarin) and C. sinensis (L.) Osbeck (Sweet Orange)." In Biotechnology in Agriculture and Forestry, 124–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56758-2_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Castro, M., V. Miranda, and B. Palma. "Microcuttings Root System Morphology and Development under In Vitro and In Vivo Conditions in Citrus Rootstocks (Citrus macrophylla West and Citrange Troyer—Poncirus trifoliata (L.) X Citrus sinensis (L.) OSB.)." In Biology of Root Formation and Development, 155–56. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5403-5_24.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fausto, Manes, Donato Eugenio, Silli Valerio, and Vitale Marcello. "Annual Estimations of Ecophysiological Parameters and Biogenic Volatile Compounds (BVOCs) Emissions in Citrus Sinensis (L.) Osbeck." In Advances in Global Change Research, 261–70. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-48051-4_25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Barreca, Davide, Ersilia Bellocco, Silvana Ficarra, Giuseppina Laganà, Antonio Galtieri, Ester Tellone, and Giuseppe Gattuso. "Analysis of C-Glycosyl Flavones and 3-Hydroxy-3-methylglutaryl-glycosyl Derivatives in Blood Oranges (Citrus sinensis (L.) Osbeck) Juices and Their Influence on Biological Activity." In ACS Symposium Series, 67–80. Washington, DC: American Chemical Society, 2018. http://dx.doi.org/10.1021/bk-2018-1286.ch004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Roussos, Peter A. "Orange ( Citrus sinensis (L.) Osbeck)." In Nutritional Composition of Fruit Cultivars, 469–96. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-12-408117-8.00020-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Franciana Sousa Pereira, Francisca, João Gabriel Thomaz Queluz, Alba María Guadalupe Orellana González, and Rodrigo Máximo Sánchez-Román. "‘Natal’ Orange (Citrus sinensis L. Osbeck) Growing Simulation Model Under Climate Change Conditions." In Water Resources Management, 45–58. Editora Scienza, 2018. http://dx.doi.org/10.26626/978-85-5953-031-5.2018c003.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Citrus sinensis (L)"

1

Santos, Karina Silva dos, Ana Paula Gonçalves, Carlos Henrique da Silva Gonçalves, Tanara Garcia de Novaes, and Rubia de Oliveira Molina. "Seleção de Isolados do Citrus tristeza virus (CTV) Protetivos para Laranja 'Pêra' [Citrus sinensis (l.) Osbeck] no Paraná." In V Simpósio de Bioquímica e Biotecnologia. São Paulo: Editora Edgard Blücher, 2015. http://dx.doi.org/10.5151/biochem-vsimbbtec-21871.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Lubis, Yolanda Eliza Putri, and Maya Sari Mutia. "Liver Protection Activity of Sunkist Orange (Citrus sinensis L. Osbeck) Peels in Cyclophosphamide Induced Male Wistar Rat." In 2021 IEEE International Conference on Health, Instrumentation & Measurement, and Natural Sciences (InHeNce). IEEE, 2021. http://dx.doi.org/10.1109/inhence52833.2021.9537213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

ARAUJO, Emanuel Isaias Mota, Láiza Cristina Carlos Freire MONTEIRO, Alídna Mosana Souza de OLIVEIRA, Leonardo Alacântara ALVES, and Luciana Medeiros BERTINI. "Caracterização da atividade antioxidante, teor de fenóis totais e atividade larvicida frente ao Aedes aegypti de Citrus sinensis L. (laranja)." In 5º Encontro Regional de Química & 4º Encontro Nacional de Química. São Paulo: Editora Edgard Blücher, 2015. http://dx.doi.org/10.5151/chenpro-5erq-org3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

SANTOS, A. A. R., F. F. PIMENTA, K. F. SILVA, M. F. COTTA, R. C. B. CHAVES, and V. C. C. COSTA. "COMPARAÇÃO DA QUANTIDADE DE TANINO CONDENSADO EXTRAÍDO DA CASCA DO COCO VERDE (COCOS NUCIFERA L.) E DA CASCA DA LARANJA-PERA (CITRUS SINENSIS L. OSBECK)." In XXII Congresso Brasileiro de Engenharia Química. São Paulo: Editora Blucher, 2018. http://dx.doi.org/10.5151/cobeq2018-pt.0700.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

PINHEIRO, C. L., O. P. TARANTO, and E. TOMAZ. "EMISSÕES DE COMPOSTOS ORGÂNICOS VOLÁTEIS SELECIONADOS DURANTE O PROCESSO DE SECAGEM DO ALBEDO E DO FLAVEDO DE LARANJA-PÊRA (Citrus Sinensis L. Osbeck)." In XX Congresso Brasileiro de Engenharia Química. São Paulo: Editora Edgard Blücher, 2015. http://dx.doi.org/10.5151/chemeng-cobeq2014-0812-23612-159617.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Santos, U. V., B. S. Santos, G. F. Silva, P. B. L. Constant, and J. A. B. Santos. "AVALIAÇÃO DE POTENCIAL DE ERVAS MEDICINAIS: CAPIM-LIMÃO (Cymbopogon citratus D.C.), CHÁ VERDE (Camellia sinensis L.) E HIBISCO (Hibiscus sabdariffa L.) PARA OBTENÇÃO DE CHÁS SOLÚVEIS." In 5th International Symposium on Technological Innovation. Universidade Federal do Sergipe, 2014. http://dx.doi.org/10.7198/s2318-3403201400020044.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography