The nascent-polypeptide-associated complex alpha subunit regulates the polygalacturonases expression negatively and influences the pathogenicity of Sclerotinia sclerotiorum.
Mycologia
; 107(6): 1130-7, 2015.
Article
em En
| MEDLINE
| ID: mdl-26297780
ABSTRACT
Sclerotinia sclerotiorum is a necrotrophic plant-pathogenic fungus that infects more than 400 species of plants. In this study the nascent polypeptide-associated complex α subunit gene of S. sclerotiorum (SsNACα; accession No. XP_001593856.1) was cloned and characterized. The relative transcript expression of SsNACα at different morphological stages of asexual development of S. sclerotiorum were analyzed by quantitative real time PCR (qRT-PCR). RNAi-mediated gene silencing was successful for SsNACα, and the mutated strains exhibited less than 15% of the relative expression of SsNACα were obtained and used for studying the biological functions of the gene. A delay in sclerotial maturation for S. sclerotiorum was observed in the SsNACα mutants. The significant elevations for both the activities of pectin-degrading enzymes and the expression of polygalacturonase genes also were associated with the mutated strains, indicating that SsNACα could negatively influence polygalacturonases expression and modulate the pathogenicity of S. sclerotiorum.
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MEDLINE
Assunto principal:
Doenças das Plantas
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Poligalacturonase
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Ascomicetos
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Proteínas Fúngicas
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Regulação Enzimológica da Expressão Gênica
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Chaperonas Moleculares
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article