过敏性反应(hypersensitive reaction,HR)是植物基本的抗病反应。由于寄主植物和病原菌的基本遗传因素不相容,决定了感染早期植物对病原菌的识别,然后导致一系列的生化反应。HR的特点是病原菌感染部位附近的细胞快速坏死,紧接着聚集植物抗毒素以及其它因子。近十年来,随着分子生物学和其它相关学科的发展,人们从信号识别、信号传导和防卫 Hypersensitive reaction (HR) is the basic disease resistance of plants. The incompatibility of the basic genetic elements of the host plant with the pathogen determines the identification of the pathogen by the plant in the early stages of infection and then leads to a series of biochemical reactions. HR is characterized by rapid necrosis of cells near the site of infection of the pathogen, followed by accumulation of phytoalexins and other factors. In the past decade, with the development of molecular biology and other related disciplines, people from signal recognition, signal transduction and defense