Wei Lijuan, Liao Weibiao, Zhong Yue, Tian Ye, Wei Shouhui, Liu Yiqing
Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China.
College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou 730070, China.
Plant Sci. 2024 Jan;338:111927. doi: 10.1016/j.plantsci.2023.111927. Epub 2023 Nov 19.
Salt stress is one of the major environmental stressors that remarkably hinders the processes of plant growth and development, thereby limiting crop productivity. An understanding of the molecular mechanisms underlying plant responses against salinity stimulus will help guide the rational design of crop plants to counter these challenges. Nitric oxide (NO) is a redox-related signaling molecule regulating diverse biological processes in plant. Accumulating evidences indicated NO exert its biological functions through posttranslational modification of proteins, notably via S-nitrosylation. During the past decade, the roles of S-nitrosylation as a regulator of plant and S-nitrosylated candidates have also been established and detected. Emerging evidence indicated that protein S-nitrosylation is ubiquitously involved in the regulation of plant response to salt stress. However, little is known about this pivotal molecular amendment in the regulation of salt stress response. Here, we describe current understanding on the regulatory mechanisms of protein S-nitrosylation in response to salt stress in plants and highlight key challenges in this field.
盐胁迫是主要的环境胁迫因素之一，严重阻碍植物的生长发育过程，从而限制作物产量。了解植物对盐胁迫刺激反应的分子机制，将有助于指导合理设计应对这些挑战的作物品种。一氧化氮（NO）是一种与氧化还原相关的信号分子，调控植物中的多种生物学过程。越来越多的证据表明，NO通过蛋白质的翻译后修饰发挥其生物学功能，尤其是通过S-亚硝基化修饰。在过去十年中，S-亚硝基化作为植物调节剂的作用以及S-亚硝基化候选物也已被确定和检测到。新出现的证据表明，蛋白质S-亚硝基化普遍参与植物对盐胁迫反应的调控。然而，对于这种关键的分子修饰在盐胁迫反应调控中的作用知之甚少。在此，我们阐述了目前对植物中蛋白质S-亚硝基化响应盐胁迫调控机制的理解，并强调了该领域的关键挑战。
