State Key Laboratory of Grassland Agro- College of Ecology, Lanzhou University, Lanzhou 730000, Gansu Province, China.
Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
Plant Signal Behav. 2022 Dec 31;17(1):2071024. doi: 10.1080/15592324.2022.2071024.
Members of the SNF1-related protein kinase 2 (SnRK2) family are plant-specific serine or threonine kinases that play a pivotal role in the response of plants to abiotic stresses. Members of this plant-specific kinase family have included a critical regulator (SnRK2) of abscisic acid (ABA) response in plants. Plant organ development is governed substantially by the interaction of the SnRK2 and the phytohormone abscisic acid (ABA). Recent research has revealed a synergistic link between SnRK2 and ABA signaling in a plant's response to stress such as drought and shoot growth. SnRK2 kinases play a dual role in the control of SnRK1 and the development of a plant. The dual role of SnRK2 kinases promotes plant growth under optimal conditions and in the absence of ABA while inhibiting the growth of plants in response to ABA. In this review, we have uncovered the roles of ABA-activated SnRK2 kinases in plants, as well as their physiological mechanisms.
SNF1 相关蛋白激酶 2（SnRK2）家族成员是植物特有的丝氨酸或苏氨酸激酶，在植物对非生物胁迫的响应中发挥着关键作用。这个植物特有的激酶家族的成员包括植物中脱落酸（ABA）反应的关键调节剂（SnRK2）。植物器官的发育主要受 SnRK2 和植物激素脱落酸（ABA）的相互作用控制。最近的研究揭示了 SnRK2 和 ABA 信号在植物对干旱和芽生长等胁迫的反应中的协同联系。SnRK2 激酶在 SnRK1 的控制和植物发育中发挥双重作用。SnRK2 激酶的双重作用促进了植物在最佳条件下和没有 ABA 的情况下的生长，同时抑制了植物对 ABA 的生长反应。在这篇综述中，我们揭示了 ABA 激活的 SnRK2 激酶在植物中的作用及其生理机制。
