褪黑素调控植物生物与非生物胁迫应答的分子机制研究进展

Molecular Mechanism Research Progress of Melatonin-Mediated Abiotic/Biotic Stress Response in Plant

褪黑素是一种色氨酸衍生物,广泛存在于植物体内。植物中褪黑素不仅能够调节开花、光合作用、凋亡、根的形态建成、种子萌发等生长发育过程,还参与调控植物对各种生物与生物胁迫应答过程。本文重点综述了褪黑素调控植物各种生物与非生物胁迫应答的生理和分子机制及其信号转导途径的研究进展。同时,对褪黑素调控植物胁迫应答研究中存在的主要问题及今后研究的重点进行讨论和展望,以期为进一步揭示褪黑素信号在植物生物与非生物胁迫应答中的调控机制提供参考。

Melatonin is a derivative of tryptophan and it is widely found in plants.Plant melatonin is an evolu-tionarily conserved molecule,involved in regulating multiple physiological processes including flowering,photosynthesis,senescence,rooting,seed germination,vegetative growth,and responses to various abiotic and/or biotic stresses.The present review covers the latest advances on the mechanistic roles of phytomelatonin and signaling transduction pathway.Meanwhile,we propose the possible research direction of plant melatonin-mediated stress responses in future.This will provide references for studying on molecular mechanism of plant melatonin mediated abiotic and biotic stress responses.