摘要
植物类病变是指在无外界致病因素和逆境因素的影响下,植株叶片、叶鞘等部位自发产生坏死斑的现象。这类突变与植物过敏性反应症状类似,属于程序化细胞死亡。在植物类病变突变体中,植株通常会表现出对某些植物病原物抗性增强。对植物类病变突变体的特点、遗传机制、病斑发生机制、抗病性以及类病变突变体基因的克隆及功能分析等进行整理,可为植物程序化死亡的机制研究和抗性品种的遗传改良提供理论依据。
Plant lesions(lesion mimic, LM)is a phenomenon that spontaneously formed like necrotic lesions of the pathogens infection. It occurrs in plant leaves and leaf sheaths and other parts without any external pathogenic factors and stress condition. This type of mutation is similar to the symptoms of plant allergic reaction, is a kind of programmed cell death(PCD). The plant resistance to some plant pathogens is enhanced in the plant lesion mutants. In this study, the characteristics, genetic mechanism, pathogenesis of disease spots, disease resistance, cloning and functional analysis of plant lesion mutants were summarized to provide theoretical basis for the study of the programmed death mechanism of plants and genetic improvement of resistant varieties.
作者
刘思辰
曹晓宁
王海岗
王君杰
陈凌
田翔
秦慧彬
乔治军
LIU Sichen;CAO Xiaoning;WANG Haigang;WANG Junjie;CHEN Ling;TIAN Xiang;QIN Huibin;QIAO Zhijun(Institute of Crop Germplasm Resources,Shanxi Academy of Agricultural Sciences,Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau,Ministry of Agriculture,Shanxi Key Laboratory of Genetic Resources and Genetic Improvement of Minor Crops,Taiyuan 030031,China)
出处
《山西农业科学》
2020年第2期272-276,共5页
Journal of Shanxi Agricultural Sciences
基金
山西省重点研发计划项目（201903D221087,201603D221003-5）
国家现代农业产业技术体系建设专项（CARS-06-13.5-A16）
山西省自然基金面上项目（201601D02049）
山西“农谷”研发专项（YCX2017D2205）
关键词
突变体
类病变
细胞程序性死亡
超敏反应
抗病性
mutant
lesion mimic
programmed cell death
hypersensitive response
pathogen resistance
