活性氧在环境胁迫诱导的植物细胞程序性死亡中的作用

Function of ROS In Environmental Stress Induced PCD of Plants

细胞程序性死亡(PCD)发生在许多植物生长发育过程中和非生物的逆境条件下,是由细胞自身基因编码的、主动的、有序的细胞死亡形式。活性氧(ROS)在植物的生长、发育和对外界生物和非生物环境刺激的反应及细胞程序性死亡等调控过程中是一个重要的信号分子。本文综述了ROS的产生、对植物在环境胁迫下防御反应的作用以及与其他一些信号分子在植物PCD中的相互作用。

This paper discribed plant programmed cell death（ PCD）, generally occuring during many developmental processes and abiotic stress conditions, is a driving cell death process regulated and controlled by gene. Reactive oxygen species （ROS） play an important signaling role in plants controlling processes such as growth, development, response to biotic and abiotic environmental stimuli, and programmed cell death. This paper reviewed the functions of ROS in plants via its production, their function in defencing environmental stress of plants and the reaction with other signals.