植物过敏性诱导反应蛋白研究进展

Research Advances of Plant Hypersensitive Induced Reaction Protein

自然界中的植物为保护自身免受病原菌侵害,进化出了复杂的防御系统,其中,植物过敏性反应通过侵染部位细胞的快速死亡,限制病原菌的进一步扩散。植物过敏性诱导反应蛋白与植物过敏性反应密切相关,在植物免疫过程中发挥重要作用。植物过敏性诱导反应蛋白家族成员含有高度保守的SPFH结构域,该结构域蛋白的重要功能之一是参与膜筏微区的形成。近年来,研究表明植物过敏性诱导反应蛋白除参与植物抗病反应、组织膜筏微区形成外,在花青素生物合成、离子转运以及非生物胁迫过程中也发挥重要功能。该文综述了植物过敏性诱导反应蛋白的研究历史、结构特点与定位以及生物学功能,并对其后续研究方向进行了展望。

Plants have evolved a complex immune system which helps them cope with pathogen attacks.The hypersensitive reaction is one of the various defense mechanisms which is characterized by a rapid cell death at the point of pathogen ingress,hence restricting the spread of the invading pathogens from the infection sites.Hypersensitive induced reaction proteins are a group of proteins involved in hypersensitive reaction,playing an important role in plant immunity.Hypersensitive induced reaction proteins contain highly conserved SPFH domain,which is thought to be related to the formation of membrane microdomains.In recent years,studies have shown that hypersensitive induced reaction proteins play an important role in regulation of anthocyanin biosynthesis and participate in ion transportation as well as abiotic stress resistance.The review discribes the research history,structural features and cellular locations,and biological functions of hypersensitive induced reaction proteins,and propose the future research directions.