植物类病变突变体研究进展  

Research Progress of Plant Lesion Mimic Mutants

作　　者：肖桂青[1,2] 张元夫[1] 杨必能 刘步蟾 周嘉豪[2] 张海文[2] Xiao Guiqing Zhang Yuanfu Yang Bineng Liu Buchan Zhou Jiahao Zhang Haiwen(College of Biological Science and Technology, Hunan Agricultural University, Changsha, 410128 The Biotechnology Research Institute （BRI） of Chinese Academy of Agricultural Science, Beijing, 100081)

机构地区：[1]湖南农业大学生物科学技术学院,长沙410128 [2]中国农业科学院生物技术所,北京100081

出　　处：《分子植物育种》2017年第1期290-299,共10页Molecular Plant Breeding

基　　金：湖南省自然科学基金(2016JJ4039);湖南省教育厅优秀青年基金(15B111);湖南农业大学大学生创新性实验计划项目(2016-XCX16022)共同资助

摘　　要：植物类病变(lesion mimic,LM),指在无明显机械损伤、逆境和外界病原菌侵染的条件下,植物在叶片、叶鞘等部位自发形成类似病原物侵染的坏死斑的现象。这种局部的细胞坏死属于程序化细胞死亡(PCD)。类病变突变体是研究植物PCD和过敏反应(HR)的理想材料。本综述了植物类病变突变体的特点、发生机制以及水稻类病变突变体基因的定位、克隆及功能分析等,以期为解析植物PCD和HR作用机制及调控网络提供可参考的信息。Plant lesion mimic mutant（LMM） is a phenomenon that spontaneously formed like necrotic lesions of the pathogens infection. It occurred in plant leaves and sheaths during the conditions of no mechanical damage, stress conditions or other pathogen attack. Partial cell necrosis in these mutants is a kind of programmed cell death（PCD）. Lesion mimic mutant（LMM） is an ideal material for studying programmed cell death（PCD）and hypersensitive response（HR）.In this study, the characteristics and mechanism of LMM, localization, cloning and functional analysis of rice lesion mimic mutants were summarized as to provide some useful references for the study of the mechanism and control network of PCD and HR in plant.

关 键 词：类病变突变体 细胞程序性死亡 超敏反应 基因鉴定 

分 类 号：S432[农业科学—植物病理学]