Sarangle Yashika, Bamel Kiran, Purty Ram Singh
University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India.
Department of Botany, Shivaji College, University of Delhi, New Delhi, India.
Commun Integr Biol. 2024 May 28;17(1):2353200. doi: 10.1080/19420889.2024.2353200. eCollection 2024.
Abiotic stress that plants face may impact their growth and limit their productivity. In response to abiotic stress, several endogenous survival mechanisms get activated, including the synthesis of quaternary amines in plants. Acetylcholine (ACh), a well-known quaternary amine, and its components associated with cholinergic signaling are known to contribute to a variety of physiological functions. However, their role under abiotic stress is not well documented. Even after several studies, there is a lack of a comprehensive understanding of how cholinergic components mitigate abiotic stress in plants. Acetylcholine hydrolyzing enzyme acetylcholinesterase (AChE) belongs to the GDSL lipase/acylhydrolase protein family and has been found in several plant species. Several studies have demonstrated that GDSL members are involved in growth, development, and abiotic stress. This review summarizes all the possible mitigating effects of the ACh-AChE system on abiotic stress tolerance and will try to highlight all the progress made so far in this field.
植物所面临的非生物胁迫可能会影响其生长并限制其生产力。作为对非生物胁迫的响应，植物体内多种内源性生存机制会被激活，包括季胺的合成。乙酰胆碱（ACh）是一种著名的季胺，与其相关的胆碱能信号传导成分已知可促成多种生理功能。然而，它们在非生物胁迫下的作用尚无充分记载。即便经过多项研究，对于胆碱能成分如何减轻植物的非生物胁迫，仍缺乏全面的理解。乙酰胆碱水解酶（AChE）属于GDSL脂肪酶/酰基水解酶蛋白家族，已在多种植物物种中被发现。多项研究表明，GDSL成员参与生长、发育及非生物胁迫过程。本综述总结了ACh - AChE系统对非生物胁迫耐受性的所有可能的缓解作用，并将试图突出该领域迄今所取得的所有进展。
