摘要
GABA是一种普遍存在于生物体内的非蛋白氨基酸,能够由植物自身合成,也可以通过外源施用、微生物处理等方式人为调控植物体内GABA含量。GABA在高等植物生长发育、逆境胁迫等过程中发挥重要作用,逐渐成为研究热点。通过系统介绍了植物体内GABA代谢途径、人为调控植物体内GABA含量的措施、GABA对植物生长发育(种子萌发、植株形态、作物产量)的调控、GABA对植物生理生化(植物碳氮代谢、激素生成、植物果实采后管理)的调控以及GABA对逆境胁迫的调控。同时提出当前相关研究中所存在的问题以及未来研究的可能方向,以期为GABA进一步地深化研究和服务于农业生产实践提供理论参考。
GABA is a non-protein amino acid ubiquitously present in organisms,and can be endogenously synthesized by plants or artificially regulated through exogenous application and microbial treatments to modulate its content in plant tissues.As a crucial signaling molecule,GABA exerts significant regulatory effects on the growth processes and stress responses in higher plants,making it an increasingly prominent research focus in plant science.This review comprehensively addresses the metabolic pathways of GABA biosynthesis and degradation in plants,GABA-mediated control of developmental processes spanning germination physiology,architectural formation,and productivity enhancement,biochemical modulation involving carbon-nitrogen metabolism coordination,phytohormone biosynthesis and postharvest quality management in horticultural products,as well as stress resilience mechanisms under adverse environmental conditions.Furthermore,this study critically summarizes the current research limitations,identifies unresolved scientific questions,and proposes potential research priorities.The theoretical insights presented aim to advance fundamental understanding of GABA’s multifunctional roles and facilitate its practical applications in agricultural innovation.
作者
卢璐
林邦语
LU Lu;LIN Bangyu(Huangyan District Phytosanitary Ecological Center,Huangyan,Zhejiang 318020,China;Jiyang College,Zhejiang A&F University,Zhuji,Zhejiang 311800,China)
出处
《生物灾害科学》
2025年第3期443-452,共10页
Biological Disaster Science
基金
浙江省三农六方科技协作项目(CTZB-F160728AWZ-SNY1)。
关键词
GABA
生理生化
逆境胁迫
GABA
physiological and biochemical
stress of adversity
