泛素化在病原物相关分子模式诱导的植物先天免疫反应中的作用

摘要

泛素化广泛参与调控植物体内多种生理生化反应,如生长发育、先天免疫反应等.综述了泛素化在病原物相关分子模式(PAMPs)激发的植物先天免疫反应(PTI)中的作用,重点介绍了泛素化在细菌鞭毛蛋白和真菌几丁质等PAMP引起的PTI反应中的作用及其机制.此外,还综述了病原微生物分泌的部分效应因子泛素化靶标或者通过抑制植物靶标泛素化以抑制PTI反应并达到侵染的目的,以为解析植物体内抗性调节机制和植物病原菌的防治提供参考.%Ubiquitination has been widely involved in regulating various physiological and biochemical reactions in plants,such as growth,development and innate immunity.Here,we reviewed the role of ubiquitination in pathogen associated molecular patterns (PAMPs) triggered plants immunity (PTI),especially the function and mechanism of ubiquitination in PTI response activated by bacteria flagellin and fungal chitin.Furthermore,this paper reviews that some of the effectors secreted by pathogen ubiquitinate targets or suppress target ubiquitination to inhibit PTI for its infection.Hopefully,this review can provide reference for analyzing of the regulation mechanism of plant resistance and pathogen management.