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植物先天免疫主要由两部分组成:一类是通过细胞膜上的病原菌分子模式识别受体识别病原微生物表面存在的分子特征激发的免疫反应(PTI);另一类是专化性的抗病R蛋白识别病原微生物的效应蛋白,从而激发下游的病原菌小种特异性的防卫反应过程(ETI).随着水稻抗病信号途径中越来越多的抗病基因以及关键的调控基因被克隆和功能鉴定,同时多种水稻病原菌效应蛋白的发现,水稻抗病机理的研究也越来越深入.本文阐述了水稻的PTI,ETI及其下游参与免疫信号转导的关键性组分,从而形成一个初步的水稻免疫调控网络.
Plant innate immunity is mainly composed of two parts: one is the immune response (PTI) triggered by the molecular characteristics of the pathogen recognition on the surface of the pathogenic microorganisms through the molecular pattern recognition of the pathogen molecular pattern on the cell membrane; the other is the specialized resistance R protein Identify the effector proteins of pathogenic microorganisms, and then stimulate the racial-specific defense response process (ETI) of downstream pathogens.With more and more disease-resistance genes and key regulatory genes in rice resistance signaling pathways being cloned and functionally identified, At the same time, discovering a variety of rice pathogenic effector proteins and studying the disease resistance mechanism of rice is also more and more in depth.This paper describes the PTI and ETI of rice and its downstream key components involved in immune signal transduction, thus forming a preliminary rice Immune regulation network.