【摘 要】
：
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
【机 构】
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State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection,Northwest
【出 处】
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The 4th International Conference on Biotic Plant Interaction
论文部分内容阅读
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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