活性氧对植物自噬调控的研究进展

自噬是一种在真核生物中高度保守的降解细胞组分的生物过程, 在饥饿、衰老和病菌感染等过程中起关键作用。而活性氧是有氧生物在正常或胁迫条件下产生的一种代谢副产物, 在植物的生长发育、胁迫适应和程序性细胞死亡过程中起重要作用。最新研究结果表明, 当植物受到病菌感染产生超敏反应时活性氧和自噬在程序性细胞死亡、生长发育和胁迫适应过程中起重要调控作用。因此, 该文结合最新的研究进展, 从活性氧的种类及特点、自噬的分子基础以及活性氧在植物自噬中的作用等方面, 探讨了活性氧与植物自噬之间的信号转导关系。

Research Progress in Regulation of Reactive Oxygen Species in Plant Autophagy

Autophagy is a highly conserved biological progress in degradation of the cell components and has key roles in starvation, senescence and infection by pathogens. Moreover, reactive oxygen species (ROS) is a byproduct of higher plants during normal and stress conditions and plays an important role in regulation of growth and development and programmed cell death during stress response. Recent research has shown that ROS and autophagy both regulate programmed cell death in the hypersensitive reaction during infection by pathogens, growth and development and stress adaptation. We discuss the signal interaction between ROS and autophagy in plants, including species and characteristics of ROS, the molecular basis of plant autophagy, and functions of ROS in plant autophagy.