摘要
细胞程序性死亡(programmed cell death,PCD)是一种由基因控制的、主动的细胞死亡过程,它对植物正常生长发育起重要作用。在逆境胁迫因子如病原体、高盐、低氧、低温、热激和金属离子等作用下,植物为了抵御不良环境的侵害,以活性氧、Ca2+、乙烯和NO等为信号因子,诱导植物体的特定部位发生PCD,形成细胞主动死亡,从而避免逆境对其他组织进一步伤害,并使植物获得对不良环境的适应性。对植物PCD的一般特征、环境胁迫因子及诱导PCD信号分子等进行了综述,为在逆境条件下深入研究植物细胞程序性死亡提供参考。
Programmed cell death（PCD） as an active and gene-regulated process, plays an important role in normal growth and development of plants. In order to resist bad environment invasion such as pathogen ,high salt,low oxygen and temperature, heat shock and metallicion, plant can induce and generate PCD at particular tissue by using signal factors, such as active oxygen,Ca^2＋ ,ethylene, NO. The paper summarized the general characteristics of PCD, environment stress factors and its transduction pathway regarding PCD signal,thus it could provide references to further study PCD of plant in adversity conditions.
出处
《生物技术通报》
CAS
CSCD
北大核心
2009年第4期7-11,共5页
Biotechnology Bulletin
基金
国家“863”计划(2006AA10Z132)
“十一五”国家科技支撑项目(2006BAD01A19,2006BAC18B04-1)
北京市重点实验室和北京市重点学科专项
