Role of Gamma-Aminobutyric Acid in Plant Defense Response

被引：33

作者：

Guo, Zhujuan ^{[1
]}

Gong, Junqing ^{[1
]}

Luo, Shuitian ^{[1
]}

Zuo, Yixin ^{[1
]}

Shen, Yingbai ^{[1
]}

机构：

[1] Beijing Forestry Univ, Coll Biol Sci & Technol, Natl Engn Res Ctr Tree Breeding & Ecol Restorat, 35 Qinghua East Rd, Beijing 100083, Peoples R China

来源：

METABOLITES | 2023年 / 13卷 / 06期

基金：

中国国家自然科学基金;

关键词：

gamma-aminobutyric acid; synthesis and metabolism; carbon and nitrogen metabolism; pH balance; antioxidant system; calcium signal; AMINO BUTYRIC-ACID; GLUTAMATE-DECARBOXYLASE; GABA SHUNT; PHOTOSYNTHETIC PERFORMANCE; OXIDATIVE DAMAGE; METABOLIC FLUX; STRESS; PH; ACCUMULATION; EXPRESSION;

D O I：

10.3390/metabo13060741

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Gamma-aminobutyric acid (GABA) is a four-carbon non-protein amino acid that acts as a defense substance and a signaling molecule in various physiological processes, and which helps plants respond to biotic and abiotic stresses. This review focuses on the role of GABA's synthetic and metabolic pathways in regulating primary plant metabolism, redistributing carbon and nitrogen resources, reducing the accumulation of reactive oxygen species, and improving plants' tolerance of oxidative stress. This review also highlights the way in which GABA maintains intracellular pH homeostasis by acting as a buffer and activating H+-ATPase. In addition, calcium signals participate in the accumulation process of GABA under stress. Moreover, GABA also transmits calcium signals through receptors to trigger downstream signaling cascades. In conclusion, understanding the role of GABA in this defense response provides a theoretical basis for applying GABA in agriculture and forestry and feasible coping strategies for plants in complex and changeable environments.

引用

页数：17

共 119 条

[41]

Jalil SU, 2017, CURR PLANT BIOL, V9-10, P11, DOI 10.1016/j.cpb.2017.02.001

[42] Characterization and developmental expression of a glutamate decarboxylase from maritime pine [J].