Aslam Saima, Gul Nadia, Mir Mudasir A, Asgher Mohd, Al-Sulami Nadiah, Abulfaraj Aala A, Qari Sameer
Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India.
Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, India.
Front Plant Sci. 2021 Jul 22;12:668029. doi: 10.3389/fpls.2021.668029. eCollection 2021.
Plant growth regulators have an important role in various developmental processes during the life cycle of plants. They are involved in abiotic stress responses and tolerance. They have very well-developed capabilities to sense the changes in their external milieu and initiate an appropriate signaling cascade that leads to the activation of plant defense mechanisms. The plant defense system activation causes build-up of plant defense hormones like jasmonic acid (JA) and antioxidant systems like glutathione (GSH). Moreover, calcium (Ca) transients are also seen during abiotic stress conditions depicting the role of Ca in alleviating abiotic stress as well. Therefore, these growth regulators tend to control plant growth under varying abiotic stresses by regulating its oxidative defense and detoxification system. This review highlights the role of Jasmonates, Calcium, and glutathione in abiotic stress tolerance and activation of possible novel interlinked signaling cascade between them. Further, phyto-hormone crosstalk with jasmonates, calcium and glutathione under abiotic stress conditions followed by brief insights on omics approaches is also elucidated.
植物生长调节剂在植物生命周期的各种发育过程中发挥着重要作用。它们参与非生物胁迫反应和耐受性。它们具有非常发达的能力来感知外部环境的变化，并启动适当的信号级联反应，从而导致植物防御机制的激活。植物防御系统的激活会导致茉莉酸（JA）等植物防御激素和谷胱甘肽（GSH）等抗氧化系统的积累。此外，在非生物胁迫条件下也会出现钙（Ca）瞬变，这也说明了Ca在减轻非生物胁迫中的作用。因此，这些生长调节剂倾向于通过调节植物的氧化防御和解毒系统来控制不同非生物胁迫下的植物生长。本综述强调了茉莉酸盐、钙和谷胱甘肽在非生物胁迫耐受性中的作用以及它们之间可能存在的新型相互关联信号级联反应的激活。此外，还阐述了非生物胁迫条件下植物激素与茉莉酸盐、钙和谷胱甘肽之间的相互作用，以及对组学方法的简要见解。
