期刊
FEMS MICROBIOLOGY LETTERS
卷 348, 期 1, 页码 36-45出版社
OXFORD UNIV PRESS
DOI: 10.1111/1574-6968.12240
关键词
Fusarium head blight; Fusarium root rot; Fusarium crown rot; BOA; phytoalexin
类别
FgABC1 (FGSG_04580) is predicted to encode a pleiotropic drug resistance class ABC transporter in Fusarium graminearum, a globally important pathogen of wheat. Deletion mutants of FgABC1 showed reduced virulence towards wheat in crown and root infection assays but were unaltered in infectivity on barley. Expression of FgABC1 during head blight and crown rot disease increases during the necrotrophic phases of infection suggestive of a role for FgABC1 in late infection stages in different tissue types. Deletion of FgABC1 also led to increased sensitivity of the fungus to the antifungal compound benalaxyl in culture, but the response to known cereal defence compounds, gramine, 2-benzoxazalinone and tryptamine was unaltered. FgABC1 appears to have a role in protecting the fungus from antifungal compounds and is likely to help combat as yet unidentified wheat defence compounds during disease development.
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