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Mostrando ítems 1-12 de 12
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Association mapping in sunflower for sclerotinia head rot resistance
(BMC, 2012-06)Background: Sclerotinia Head Rot (SHR) is one of the most damaging diseases of sunflower in Europe, Argentina, and USA, causing average yield reductions of 10 to 20 %, but leading to total production loss under favorable ... -
Diversidad genómica y mapeo por asociación para la resistencia a la podredumbre húmeda del capítulo causada por Sclerotinia sclerotiorum en girasol
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2015)Argentina tiene una larga tradición en el mejoramiento de girasol, siendo su germoplasma un recurso genético invaluable a nivel mundial. Nuestro país es el tercer exportador mundial de aceite crudo y segundo exportador de ... -
Estudio de la resistencia a Sclerotinia sclerotiorum en líneas endocriadas de girasol
(Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, 2014)La podredumbre húmeda del capítulo (PHC), causada por Sclerotinia sclerotiorum, es una de las limitante más importantes para el cultivo del girasol. Este trabajo tuvo como objetivo identificar las regiones del genoma de ... -
Lipoxygenase activation in peanut seed cultivars resistant and susceptible to Aspergillus parasiticus colonization
(American Phytopathological Society, 2014-12)Accumulative evidence indicates that the lipoxygenase (LOX) pathway plays a significant role in the Aspergillus–seed interaction, such as interfering with activities of endogenous fungal oxylipins or producing antimicrobial ... -
Mapeo por asociación en girasol: diversidad nucleotídica, desequilibrio de ligamiento e identificación de genes involucrados en la resistencia a la podredumbre húmeda del capítulo
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2012-11)El mapeo por asociación es una herramienta poderosa que permite la identificación de loci cuya contribución explica parte de la variación fenotípica observada. En general, los marcadores utilizados en estos estudios son ... -
The overexpression of antifungal genes enhances resistance to rhizoctonia solani in transgenic potato plants without affecting arbuscular mycorrhizal symbiosis
(Elsevier, 2019-10)The biological control of fungal diseases through the use of genetically modified (GM) plants could decrease the input of chemical pesticides. To overcome possible losses in potato (Solanum tuberosum) yield because of ... -
Overexpression of snakin-1 gene enhances resistance to Rhizoctonia solani and Erwinia carotovora in transgenic potato plants
(Wiley-Blackwell, 2008-05)Snakin‐1 (SN1), a cysteine‐rich peptide with broad‐spectrum antimicrobial activity in vitro, was evaluated for its ability to confer resistance to pathogens in transgenic potatoes. Genetic variants of this gene were cloned ... -
P0 protein of cotton leafroll dwarf virus-atypical isolate is a weak RNA silencing suppressor and the avirulence determinant that breaks the cotton Cbd gene-based resistance
(Wiley, 2019-08)Cotton blue disease (CBD) is the most important disease present in cotton crops in South America and cotton leafroll dwarf virus (CLRDV) is the causal agent. The disease has been controlled by sowing cotton varieties ... -
Peanut seed cultivars with contrasting resistance to Aspergillus parasiticus colonization display differential temporal response of protease inhibitors
(American Phytopathological Society, 2017-04)Significant efforts are being made to minimize aflatoxin contamination in peanut seeds and one possible strategy is to understand and exploit the mechanisms of plant defense against fungal infection. In this study we have ... -
Phenotyping sunflower genetic resources for Sclerotinia head rot response: assessing variability for disease resistance breeding
(The American Phytopathological Society, 2017-11)Sclerotinia head rot (SHR) is one of the most serious constraints to sunflower (Helianthus annuus L. var. macrocarpus) production worldwide. Here, we evaluated the response to SHR in a sunflower inbred panel from a large ... -
Potato snakin-1 gene enhances tolerance to Rhizoctonia solani and Sclerotinia sclerotiorum in transgenic lettuce plants
(Elsevier, 2018-10)Snakin-1 is a cysteine-rich antimicrobial peptide (AMP) isolated from potato tubers, with broad-spectrum activity. It belongs to the Snakin/GASA family, whose members have been studied because of their diverse roles ... -
Unveiling the genetic basis of Sclerotinia head rot resistance in sunflower
(BMC, 2020-07)Background: Sclerotinia sclerotiorum is a necrotrophic fungus that causes Sclerotinia head rot (SHR) in sunflower, with epidemics leading to severe yield losses. In this work, we present an association mapping (AM) approach ...