【摘要】 简述了活性氧的产生及清除。综述了活性氧在植物抗病中的作用,主要包括:直接杀死入侵病原菌,增强细胞壁的强度和氧化交联,诱导植保素合成、系统获得抗性、过敏性反应、细胞程序性死亡和防卫基因的表达,激活或与其他信号分子协同作用。总结了活性氧在植物体中的负作用。更多还原

【Abstract】 The production,elimination and roles in plant resistance of reactive oxygen species(ROS) were discussed in this paper.The roles of ROS in plant resistance include: killing pathogens;enhancing the strength of cell wall and its oxidase cross;inducing the production of phytoalexins,systemic acquired resistance(SAR),hypersensitive response(HR),programmed cell death(PCD),and expression of defense genes;activating other signal molecules or function with these signal molecules together.The negative roles of ROS were also discussed.更多还原