浙江农业学报 ›› 2023, Vol. 35 ›› Issue (3): 708-716.DOI: 10.3969/j.issn.1004-1524.2023.03.24

• 综述 • 上一篇    下一篇

植物病原菌Nep1-Like蛋白研究进展

向江(), 程建徽, 魏灵珠, 吴江*()   

  1. 浙江省农业科学院 园艺研究所,浙江 杭州 310021
  • 收稿日期:2021-10-11 出版日期:2023-03-25 发布日期:2023-04-07
  • 通讯作者: *吴江,E-mail:wujiang@zaas.ac.cn
  • 作者简介:向江(1987—),男,重庆人,博士,助理研究员,主要从事葡萄育种与栽培研究。E-mail:xiangjiang717@163.com
  • 基金资助:
    国家自然科学基金(31801822);浙江省农业科学院青年人才培养项目

Progress on Nep1-like proteins (NLPs) of phytopathogens

XIANG Jiang(), CHENG Jianhui, WEI Lingzhu, WU Jiang*()   

  1. Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-10-11 Online:2023-03-25 Published:2023-04-07

摘要:

NLPs[necrosis-and ethylene-inducing peptide 1 (Nep1)-like proteins]是一类质外体分泌蛋白,存在于多种植物病原菌中,在病原菌侵染植物的过程中发挥着重要的作用。根据结构特点,NLP蛋白分为Ⅰ、Ⅱ和Ⅲ 3种类型,存在有细胞毒性和无细胞毒性两种形态。具有细胞毒性的NLP蛋白与植物的NTCD4蛋白结合后促进自身寡聚化,引起双子叶植物细胞死亡和感病,而对单子叶植物无影响。无细胞毒性的NLP蛋白功能仍不清楚。NLP蛋白还能作为MAMP分子激发植物免疫反应,许多植物已经进化出特异性识别NLP蛋白的免疫系统,例如拟南芥通过受体蛋白RLP23识别类型Ⅰ的NLP蛋白保守多肽nlp20/24,从而激发免疫反应。本文综述了近年来国内外关于NLP蛋白结构、表达模式、致病机理及被寄主识别机制的研究进展,以期为病原菌-寄主互作机制及病害绿色防控研究提供理论依据和参考。

关键词: 植物病原菌, NLP蛋白, 细胞毒性, 免疫反应, 致病机理

Abstract:

NLPs[necrosis-and ethylene-inducing peptide 1 (Nep1)-like proteins] are a type of apoplast secreted protein, which exist in a variety of phytopathogens, and play an important role during plant-pathogen interactions. According to structural characteristics, NLP proteins are divided into three types: Ⅰ, Ⅱ and Ⅲ, with cytotoxic and noncytotoxic forms. Cytotoxic NLPs bind to NTCD4 protein to facilitate oligomerization of NLP proteins, resulting in cell death and disease susceptibility in eudicots, but not monocots. However, the function of noncytotoxic NLP proteins remains unclear. NLPs can also act as microbe-associated molecular patterns(MAMP)to trigger plant immunity. Many plants have evolved immune systems that specifically recognize NLP proteins, e.g., Arabidopsis thaliana recognizes the conserved peptide nlp20/24 of type Ⅰ NLP proteins via the receptor-like protein RLP23, thereby stimulating immune responses. This article reviewed the research progress on NLPs, such as protein structures, gene expression patterns, mechanisms of pathogenicity and host recognition, to provide a theoretical basis and reference for further research on pathogen-host interactions and disease prevention and control.

Key words: phytopathogens, NLPs, cytotoxic, immunity, pathogenic mechanism

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