Haustorially expressed secreted proteins from Puccinia striiformis are enriched in candidate effecto

来源 :The 4th International Conference on Biotic Plant Interaction | 被引量 : 0次 | 上传用户:YISHUIXIAOFENG2501
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Puccinia striiformis f.sp.tritici (Pst), as an obligate biotroph, obtains nutrients from the host and releases various effectors into host cells to influence host metabolism and host immunity through haustoria, a specialized structure developed within the host cells.In this study, based on the completed Pst haustorium transcriptome, the haustoria expressed secreted proteins were identified and systematically screend for haustorium-specific effectors of Pst.Among 65 candidate effectors screened, thirty-two (about 51%) could suppress BAX-trigged programmed cell death (PCD) in Nicotianabenthamiana.When delivered into wheat cells via a bacterial type-Ⅲ secretion system,eighteen of them were able to reduce the callose accumulation significantly, indicating their PTI suppression activity.
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