Transcription factor AbVf19 induces hydrolytic enzyme genes during pathogenesis in Alternaria brassicicola

ABSTRACT: Alternaria brassicicola is a successful saprophyte and necrotrophic pathogen with a broad host range. It produces secondary metabolites that marginally affect virulence, in contrast to many A. alternata strains that produce secondary metabolites as host-specific pathogenicity factors. Cell wall-degrading enzymes (CWDEs) have been considered important for pathogenesis, but no CWDEs have been identified as significant virulence factors in A. brassicicola. In this study, we discovered mutants of a gene, AbVf19, which consistently produced smaller lesions than the wild type. The mutants grew slower than the wild type on an axenic medium with pectin as a major carbon source. Gene expression comparisons identified several hydrolytic enzyme-coding genes being down-regulated in the mutant dur

ORGANISM(S): Brassica oleracea

SUBMITTER: Yangrae Cho 

PROVIDER: E-GEOD-33148 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress