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resumen

Resumen
Garlic blue mold disease, caused by Penicillium allii, is responsible for important economic losses produced yearly in garlic field crops and in postharvest storage. The identification of genetic resistance sources may help in the management of this disease. The present study investigated in vivo and in vitro antifungal effects of a genetically-diverse garlic collection against P. allii in two growing seasons. Cloves of garlic accessions were inoculated [ver mas...]
dc.contributor.authorSalinas Palmieri, Maria Cecilia
dc.contributor.authorCavagnaro, Pablo
dc.date.accessioned2019-11-26T12:32:41Z
dc.date.available2019-11-26T12:32:41Z
dc.date.issued2019-11-14
dc.identifier.issn0929-1873
dc.identifier.issn1573-8469
dc.identifier.otherhttps://doi.org/10.1007/s10658-019-01875-z
dc.identifier.urihttps://link.springer.com/article/10.1007/s10658-019-01875-z
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6396
dc.description.abstractGarlic blue mold disease, caused by Penicillium allii, is responsible for important economic losses produced yearly in garlic field crops and in postharvest storage. The identification of genetic resistance sources may help in the management of this disease. The present study investigated in vivo and in vitro antifungal effects of a genetically-diverse garlic collection against P. allii in two growing seasons. Cloves of garlic accessions were inoculated with P. allii conidia, and lesion area and sporulation of the fungus in the clove were estimated as a means to characterize the accessions response to the infection. Significant and continuous variation was found among the accessions (p < 0.001), suggesting a quantitative mode of resistance against P. allii in this garlic collection. ‘Castaño’ and ‘Peteco’ were consistently the most resistant and susceptible genotypes, respectively. Culture media of the fungus supplemented with crude garlic extracts (CGEs) revealed significant inhibition of P. allii growth in vitro by all the garlic accessions, with fungal-growth inhibition being dose-dependent up to a concentration of 20–26% (v/v), beyond which the CGEs became fungicidal. These data indicate that garlic bulbs have antifungal compounds, which at high concentration can be fungicidal for P. allii. CGEs of ‘Castaño’ and a few other accessions were consistently the more inhibitory extracts. Total phenolics and pyruvate (an estimator of the total thiosulfinates content) concentration in the garlic bulbs was not associated with P. allii resistance in vivo, but their content in the CGEs correlated significantly and negatively with the fungal growth in vitro (r = −0.38 to −0.72), suggesting that these compounds have antifungal effect, but their content is not the main factor conditioning P. allii resistance in vivo.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEuropean Journal of Plant Pathology : 1-15 (First Online: 14 November 2019)es_AR
dc.subjectAjoes_AR
dc.subjectGarliceng
dc.subjectExperimentación in Vitroes_AR
dc.subjectIn Vitro Experimentationeng
dc.subjectExperimentación in Vivoes_AR
dc.subjectIn Vivo Experimentationeng
dc.subjectPenicilliumes_AR
dc.subjectEnfermedades de las Plantases_AR
dc.subjectPlant Diseaseseng
dc.subjectControl de Enfermedadeses_AR
dc.subjectDisease Controleng
dc.subjectResistencia a la Enfermedades_AR
dc.subjectDisease Resistanceeng
dc.subject.otherPenicillium alliies_AR
dc.titleIn vivo and in vitro screening for resistance against Penicillium allii in garlic accessionses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA La Consultaes_AR
dc.description.filFil: Salinas Palmieri, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentinaes_AR
dc.description.filFil: Cavagnaro, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.subtypecientifico


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