数字农科院2.0

How does jasmonic acid improve drought tolerance? Mechanisms and future prospects

文献类型： 外文期刊

作者： Tahir Abbas KHAN;Hadiqa HASSAN;Haocheng WANG;Muhammad INZAMAMULHAQ;Imran ASHRAF;Fang LUO;Hamad KHAN;Guoqin HUANG

作者机构：

关键词： antioxidants;drought;jasmonates;plant hormones;stress signaling

期刊名称： Notulae Botanicae Horti Agrobotanici Cluj-Napoca

ISSN： 0255-965X

年卷期： 2024 年 52 卷 2 期

页码：

收录情况： SCIE（2024版）

摘要： Drought stress poses a significant challenge to agriculture sustainability across the globe. Drought stress negatively affects the plant growth and productivity and the intensity of this serious abiotic stress is continuously increasing which is a serious threat across the globe. Different measures are being used to mitigate the adverse impacts of drought stress. Among these measures, the application of exogenous osmolytes and growth hormones is considered an important way to mitigate the adverse impacts of drought. Recently, jasmonic acid (JA) has emerged as an excellent growth hormone to improve drought tolerance owing to its involvement in different plant physiological and biochemical processes. Jasmonic acid improves membrane stability plant water relations, nutrient uptake, osmolyte accumulation, and antioxidant activities that can counter the toxic effects of drought. It also contributes to signaling pathways, i.e., genes network, stressresponsive proteins, signaling intermediates, and enzymes that protect the plants from the toxic effects of drought. Further, JA also protects and maintains the integrity of plant cells by up-regulating the antioxidant defense system and increasing osmolyte accumulation. In this review, we have documented the protective role of JA under drought stress. The various mechanisms of JA in inducing drought tolerance are discussed and different research gaps are also identified. This review will help the readers to learn more about the role of JA to mitigate the toxic effects of drought and it will provide new knowledge to develop the drought tolerance in plants.

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