Pseudocercospora griseola, the causal agent of common bean angular leaf spot: Strain characterization and sensitivity to fungicides

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorLibrelon, Samira Santiago-
Autor(es): dc.creatorPereira, Fernanda Aparecida Castro-
Autor(es): dc.creatorPádua, Paula Furtado de-
Autor(es): dc.creatorPereira, Nathália Bottrel Maia-
Autor(es): dc.creatorGomes, Luanna de Barros Wanderley-
Autor(es): dc.creatorPereira, Rafael-
Autor(es): dc.creatorPereira, Lucas Fidelis-
Autor(es): dc.creatorPozza, Edson Ampélio-
Autor(es): dc.creatorSouza, Elaine Aparecida de-
Data de aceite: dc.date.accessioned2026-02-09T12:39:45Z-
Data de disponibilização: dc.date.available2026-02-09T12:39:45Z-
Data de envio: dc.date.issued2022-07-21-
Data de envio: dc.date.issued2022-07-21-
Data de envio: dc.date.issued2022-03-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50687-
Fonte completa do material: dc.identifierhttps://doi.org/10.1111/ppa.13556-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1165787-
Descrição: dc.descriptionAngular leaf spot (ALS), an important disease of common bean (Phaseolus vulgaris), is caused by the fungus Pseudocercospora griseola. This pathogen has a wide genetic variability and, therefore, poses a challenge to integrated disease management. The use of resistant cultivars is difficult; hence, the application of fungicides has been a common practice in common bean cultivation. P. griseola strains were morphophysiologically characterized and their sensitivity to common fungicides used to control ALS was studied. The strains were evaluated for sporulation capacity and a representative sample of 34 strains was bioassayed to determine their sensitivity to commercial concentrations of five fungicides, namely pyraclostrobin, mancozeb, pyraclostrobin + metconazole, chlorothalonil and tebuconazole. Another sample of 29 strains was studied for conidial germination and dimensions. Sporulation capacity ranged from 0.88 to 27.67 × 104 conidia/ml and germination percentage ranged from 39% to 72%. The large differences among strains suggest a wide genetic variability among the strains. A wide variability in aggressiveness of P. griseola was observed, which has consequences for breeding programmes aimed at resistance. The behaviour of pathogen strains differed in every fungicide evaluated, even in a population that has not been under selection pressure in the field. These results confirm the need for further studies and may guide future research with this pathogen.-
Idioma: dc.languageen-
Publicador: dc.publisherBritish Society for Plant Pathology / John Wiley & Sons, Inc-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePlant Pathology-
Palavras-chave: dc.subjectGenetic variability-
Palavras-chave: dc.subjectIn vitro assays-
Palavras-chave: dc.subjectPhaseolus vulgaris-
Palavras-chave: dc.subjectPhytopathogenic fungi-
Palavras-chave: dc.subjectPlant resistance-
Palavras-chave: dc.subjectVariabilidade genética-
Palavras-chave: dc.subjectEnsaios in vitro-
Palavras-chave: dc.subjectFeijão - Doenças e pragas-
Palavras-chave: dc.subjectFungos fitopatogênicos-
Palavras-chave: dc.subjectPlantas - Resistência-
Título: dc.titlePseudocercospora griseola, the causal agent of common bean angular leaf spot: Strain characterization and sensitivity to fungicides-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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