Coreceptors of abscisic acid and their SnRK2 protein kinase targets as regulators of plant metabolism and growth

脱落酸的共受体及其 SnRK2 蛋白激酶作为植物代谢和生长的调节因子

• 批准号: 460915364
• 负责人: Dr. Takuya Yoshida, Ph.D.
• 金额: --
• 依托单位: National Institute for Basic Biology (NIBB)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/460915364?language=en
• 关键词: Coreceptors; abscisic; acid; their; SnRK2

Plants integrate environmental and endogenous signals to optimize growth and fitness. The phytohormone abscisic acid (ABA) is a key player that allows plants to coordinate germination, transpiration, and growth in response to the environmental setting. ABA is the prime abiotic stress signal induced under water deficit. Under well-watered conditions, ABA also fulfills crucial roles in fine-tuning growth and controlling carbon metabolism. Both these regulatory processes are only rudimentarily understood on a molecular level. The project aims to elucidate the molecular mechanisms of ABA signaling for regulating leaf initiation and carbon metabolism. Based on preliminary results the working hypothesis has been developed that specific ABA coreceptors and their targeted SnRK2s protein kinases are key players of these regulatory processes. The project goal will be pursued in three work packages addressing the objective of defining the responsible ABA coreceptors and SnRK2 protein kinases for leaf initiation and controlling carbon metabolism, analyzing the SnRK2 regulation by ABA coreceptors, and identifying downstream acting targets.

植物整合环境和内源信号以优化生长和适应性。植物激素脱落酸（阿坝）是一个关键的球员，使植物协调发芽，蒸腾和生长，以响应环境设置。阿坝是水分亏缺诱导的主要非生物胁迫信号。在水分充足的条件下，阿坝在微调生长和控制碳代谢方面也发挥着至关重要的作用。这两种调节过程都只是在分子水平上得到初步了解。该项目旨在阐明阿坝信号调节叶片启动和碳代谢的分子机制。基于初步结果的工作假设已经开发出特定的阿坝辅助受体和它们的靶向SnRK2s蛋白激酶是这些调节过程的关键参与者。该项目的目标将在三个工作包中进行，旨在确定负责阿坝辅助受体和SnRK2蛋白激酶用于叶片启动和控制碳代谢的目标，分析阿坝辅助受体对SnRK2的调节，并确定下游作用靶点。