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Mostrando ítems 1-20 de 28
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Alfalfa snakin-1 prevents fungal colonization and probably coevolved with rhizobia
(BMC Plant Biology, 2014-09-17)Background: The production of antimicrobial peptides is a common defense strategy of living cells against a wide range of pathogens. Plant snakin peptides inhibit bacterial and fungal growth at extremely low concentrations. ... -
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 ... -
A bacterial endophyte from apoplast fluids protects canola plants from different phytopathogens via antibiosis and induction of host resistance
(American Phytopathological Society, 2019-03)Endophytic bacteria colonize inner plant tissues and thrive at the apoplast, which is considered its main reservoir. Because this niche is the place where the main molecular events take place between beneficial and pathogenic ... -
Characterization and use in wheat breeding of leaf rust resistance genes from durable varieties
(MDPI, 2021-11)Leaf rust is one of the most significant diseases of wheat worldwide. In Argentina, it is one of the main reasons for variety replacement that becomes susceptible after large-scale use. Some varieties showed durable ... -
Characterization of Components of Resistance to Corn Stunt Disease
(2020-05-28)Considering the occasional but increasing presence of corn stunt disease in the subtropical region of Argentina, the objective of this research was to devise an effective strategy to screen disease-resistant genotypes in ... -
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 ... -
Estudio de Potyvirus y Nigrospora oryzae como agentes patógenos del género Calibrachoa
(Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, 2022-06-01)El germoplasma proveniente de especies nativas es una importante fuente de variabilidad para la obtención de nuevos productos o la resolución de problemas sanitarios y agronómicos en los sistemas productivos de plantas ... -
Evaluación de variedades de trigo frente a enfermedades presentes en la región Centro-Sur de la provincia de Córdoba
(Facultad de Agronomía y Veterinaria, Universidad Nacional de Río Cuarto, 2020-12-29)Las enfermedades constituyen una problemática limitante en el cultivo de trigo. Seleccionar variedades con resistencia genética es fundamental para aplicar un manejo adecuado. Ante la falta de información actualizada so-bre ... -
Exploring the association between polymorphisms at 3’UTR SLC11A1 gene microsatellites and resistance to tuberculosis: A case-control study in Bos taurus dairy cattle
(2018-04)Bovine tuberculosis is a contagious infectious disease that causes significant economic impact in dairy and meat farms throughout the world. Multiple factors, including host genome, determine the outcome of the infection. ... -
Individual precocity, temporal persistence, and task-specialization of hygienic bees from selected colonies of apis mellifera
(2016)Hygienic behaviour is a complex trait that gives Apis mellifera L. resistance against brood diseases. Variability in the expression of hygienic behaviour is evidenced at the colonylevel and is explained by the proportion ... -
Integrating technologies for the sustainable control of gastrointestinal parasites in sheep : The Argentinean case
(FAO, 2023)Gastrointestinal nematode infections in sheep are a major concern among breeders due to the economic losses they cause in terms of a reduction in both productivity and viability of animals. The situation worsens in face ... -
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 ... -
Mapping a gene on wheat chromosome 4BL involved in a complementary interaction with adult plant leaf rust resistance gene LrSV2
(Springer, 2018-08)A complementary gene to LrSV2 for specific adult plant leaf rust resistance in wheat was mapped on chromosome 4BL, tightly linked to Lr12 / 31. LrSV2 is a race-specific adult plant leaf rust (Puccinia triticina) resistance ... -
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars
(Crop Science Society of America, 2018)During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance ... -
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 ...