植物自噬与病原菌互作研究进展

A State-of-the-art Review on the Interaction Between Plant Autophagy and Pathogens

自噬是真核生物进化过程中高度保守的降解过程,在植物防御及病原菌侵染过程中发挥重要作用。病原菌利用菌丝穿过自然孔口或微伤口侵入宿主细胞,建立病原菌—宿主植物互作关联,引发植物自噬响应。一方面,宿主植物利用自噬直接抵御病原菌侵害,增强植物抗病性;另一方面,宿主植物也可串扰其他信号转导事件,间接防御病原菌侵害。目前,关于植物自噬与病原菌互作方面的研究较少。本文中对近几年植物自噬与病原菌互作的相关研究进行综述,阐述植物与病原菌互作过程中宿主植物利用自噬对病原菌侵害进行直接防御,以及结合自噬与其他信号事件串扰间接抵御病原菌侵害,从植物抗病角度解析自噬参与调控的植物信号分子网络。

Autophagy is a highly conservative degradation process in the evolution of eukaryotes.It plays an important role in pathogen infection and the process of plants resisting pathogen infection.Pathogens invading plants mainly use hyphae to penetrate through natural orifices or micro-wounds to invade host cells,establish pathogen-host plant interactions,and trigger plant autophagy response.Host plants use autophagy to directly resist pathogens and enhance plant disease resistance.On the other hand,host plants can also participate in other signal transduction events and indirectly defend against pathogen infection.At present,there are few reports on the interaction between plant autophagy and pathogens.Therefore,studies on the interaction between plant autophagy and pathogens,including the interaction between plant and pathogens,how host plants use autophagy to directly defend against pathogen invasion and indirectly defend against pathogen invasion through the crosstalk between autophagy and other signaling pathways,have been summarized in this paper.Herein,the plant signaling molecular networks involved in regulating autophagy were analyzed from the perspective of plant disease resistance.