与植物超敏反应(HR)相关的细胞编程性死亡  

Review on Hypersensitive ResponseRelated PCD in Plant

作　　者：夏启中[1] 吴家和[1] 张献龙[1] 

机构地区：[1]华中农业大学作物遗传改良国家重点实验室

出　　处：《华中农业大学学报》2005年第1期97-103,共7页Journal of Huazhong Agricultural University

基　　金：国家 863计划项目(20004AA21171)资助

摘　　要：　在植物抗病的超敏反应(hypersensitiveresponse,HR)中发生的细胞死亡被证明为一种细胞编程性死亡(programmedcelldeath,PCD),与HR相关的PCD发生一般由R基因 /avr基因的不相容互作引起。离子流(Ca2+ )、活性氧(ROS)、水杨酸(SA)、茉莉酸(JA)等均是PCD发生过程中的重要信号分子;类半胱氨酸蛋白水解酶(caspases likeproteases,CLPs)、线粒体参与PCD过程;液泡在植物PCD中占重要的地位。Programmed cell death(PCD)is a life phenomenum both in animal and plant,DNA fragmentation is the hallmark of PCD.Hypersensitive responserelated cell death in resistant plant is a kind of PCD,which is caused by the incompatible interaction of R gene and avr gene.Ca~ 2+ ion influx, reactive oxygen species (ROS), SA, JA and so on are important signal molecules. CLPs (caspaseslike proteases) and mitochondria are involved and vocule plays an important role during plant PCD. Many genes are involved in the regulation of HRrelated PCD.Further studies on this issue are helpful both for enuciating the molecular mechanism of plant disease resistanc and the application of plant breeding.

关 键 词：植物过敏反应 细胞编程性死亡 信号传导 

分 类 号：S332.2[农业科学—作物遗传育种]