植物H_2S气体信号分子的生理功能研究进展

Research Progress on Hydrogen Sulfide Signaling in Plants

硫化氢(H2S)是继一氧化氮(NO)和一氧化碳(CO)之后的第三种气体信号分子,在动物体内它的产生机制和生理作用已经被充分证实,并成为一个热点研究领域。近年来,关于植物H2S的体内合成和功能研究也取得了较大进展:植物内源H2S生成的多个酶编码基因已被克隆;化学信号检测技术迅速发展;对植物体生长发育过程和环境胁迫应答的调控研究初现端倪;与各种植物激素及其它信号分子的相互作用相继呈现等。文中综述了植物体内H2S产生、检测、生理功能、信号转导等方面的研究进展,并对该领域的研究前景进行了展望。

Hydrogen sulfide （H2S） has been proposed as the third gasotransmitter after nitric oxide （NO） and carbon monoxide （CO）, whose production and physiological functions in mammals have been fully confirmed, thus making it a hot research area. In recent years, great improvement has also been achieved with respect to the studies on H2S synthesis and function in plants. For example, several endogenous genes encoding H2S-generating enzymes have been cloned, detecting techniques of chemical signals have developed rapidly, the research on the growth and development process and stress responses has been going on, the interactions with different plant hormones and other signaling molecules have also been reported successively. This paper summarized the research progress on the production, detection of endogenous HzS, its physiological functions and signal transduction pathways, etc. Meanwhile, the current problems and future insights in this field were presented.