Mechanisms of Abscisic acid (ABA)-mediated plant defense responses: An updated review

IF 6.8 Q1 PLANT SCIENCES Plant Stress Pub Date : 2025-03-01 Epub Date: 2024-12-25 DOI:10.1016/j.stress.2024.100724
Yao-Sheng Wei , Talha Javed , Tian-Tian Liu , Ahmad Ali , San-Ji Gao
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Abstract

The intensification and frequency of extreme weather events are emerging as a result of global climate change, which has a serious impact on the sustainable development of agriculture. Plants trigger a wide range of defense responses against adverse environmental conditions, including the signal generation, recognition, and transduction together with the crosstalk of defense signals and networks. Subsequently, activation of a variety of defense gene expressions and metabolic adjustments confers plant tolerance to stressors. Abscisic acid (ABA) is a vital phytohormone for balancing plant growth and adaptation to a series of environmental stresses. This review summarizes the current research progress on ABA components involved in defense responses through various mechanisms including stomatal closure, interactions with other signaling molecules such as reactive oxygen species (ROS), calcium (Ca2+) and other phytohormones, transcriptional regulation, and epigenetic modifications. Additionally, the role of ABA in balancing plant growth and stress responses is also discussed. This review provides new insights for sustainable development of agriculture under current climate change scenarios.

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脱落酸(ABA)介导的植物防御反应机制综述
全球气候变化导致极端天气事件不断加剧和频繁发生,严重影响了农业的可持续发展。植物对不利的环境条件触发了广泛的防御反应,包括信号的产生、识别和转导以及防御信号和网络的串扰。随后,各种防御基因表达和代谢调节的激活赋予植物对胁迫的耐受性。脱落酸(ABA)是平衡植物生长和适应一系列环境胁迫的重要植物激素。本文综述了ABA通过气孔关闭、与其他信号分子如活性氧(ROS)、钙(Ca2+)和其他植物激素的相互作用、转录调控和表观遗传修饰等多种机制参与植物防御反应的研究进展。此外,还讨论了ABA在平衡植物生长和逆境反应中的作用。这为当前气候变化情景下的农业可持续发展提供了新的思路。
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来源期刊
Plant Stress
Plant Stress PLANT SCIENCES-
CiteScore
5.20
自引率
8.00%
发文量
76
审稿时长
63 days
期刊介绍: The journal Plant Stress deals with plant (or other photoautotrophs, such as algae, cyanobacteria and lichens) responses to abiotic and biotic stress factors that can result in limited growth and productivity. Such responses can be analyzed and described at a physiological, biochemical and molecular level. Experimental approaches/technologies aiming to improve growth and productivity with a potential for downstream validation under stress conditions will also be considered. Both fundamental and applied research manuscripts are welcome, provided that clear mechanistic hypotheses are made and descriptive approaches are avoided. In addition, high-quality review articles will also be considered, provided they follow a critical approach and stimulate thought for future research avenues. Plant Stress welcomes high-quality manuscripts related (but not limited) to interactions between plants and: Lack of water (drought) and excess (flooding), Salinity stress, Elevated temperature and/or low temperature (chilling and freezing), Hypoxia and/or anoxia, Mineral nutrient excess and/or deficiency, Heavy metals and/or metalloids, Plant priming (chemical, biological, physiological, nanomaterial, biostimulant) approaches for improved stress protection, Viral, phytoplasma, bacterial and fungal plant-pathogen interactions. The journal welcomes basic and applied research articles, as well as review articles and short communications. All submitted manuscripts will be subject to a thorough peer-reviewing process.
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