大豆疫霉与大豆互作中的识别与反识别

doi:10.13560/j.cnki.biotech.bull.1985.2017-1051

摘要/Abstract

摘要： 大豆疫霉引起的大豆疫病是大豆生产上的毁灭性病害。深入了解大豆疫霉与寄主在分子层面的互作机制是解析病原菌致病机理、针对性地制定防治措施的必要前提。目前研究表明,植物通过两个层面的识别机制来启动防卫反应,而能否正确识别“非我”分子则是植物开启免疫系统的关键。而对于病原菌,则采用多种分子策略来极力逃避寄主的识别机制,分泌效应分子协同抑制寄主免疫反应。本文综述了一系列大豆抗病基因介导的小种专化抗性丧失的原因,以及大豆疫霉效应分子逃避和破坏寄主免疫反应的分子策略,并讨论了基于这些分子互作机制应用于筛选新型抗病资源和精确育种的可能性。

关键词: 大豆疫病, 大豆疫霉, 效应分子, 分子互作

Abstract: Root and stem rot caused by Phytophthora sojae is a devastating disease in soybean. It is necessary to understand the molecular interaction between P.sojae and host for pathogenic analysis and providing scientific basis for the management strategy. Current research shows that plant active its innate immune system based on a two-branched recognizes,and the identification of “non-me” molecules correctly is the essential step of the activation. Meanwhile,as for the pathogens,which inhibit plant immunity by cooperation within effectors repertoire,avoid host recognition through kinds of molecular strategies. In this review,we summarized how soybean Rps genes mediated race-specific resistance loss,and the strategies of P.sojae effectors escape and destroy the host immune response. We further discussed the possibility of novel resistance screening and accurate breeding based on these molecular interaction mechanism.

Key words: Soybean root and stem rot, P.sojae, effectors, molecular interaction

谭新伟, 靳雨婷, 刘美彤, 王群青. 大豆疫霉与大豆互作中的识别与反识别[J]. 生物技术通报, 2018, 34(2): 2-9.

TAN Xin-wei, JIN Yu-ting, LIU Mei-tong, WANG Qun-qing. Molecular Recognition and Counter-recognition Mechanism in Phytophthora sojae-host Interactions[J]. Biotechnology Bulletin, 2018, 34(2): 2-9.

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