Abstract：
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.
摘要：
盐胁迫是严重阻碍植物生长发育的主要环境胁迫源之一,从而限制了作物的生产力。了解植物对盐度刺激的反应的分子机制将有助于指导作物的合理设计以应对这些挑战。一氧化氮（NO）是一种与氧化还原相关的信号分子，可调节植物中多种生物过程。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，特别是通过S-亚硝基化。在过去的十年里，还建立并检测了S-亚硝基化作为植物和S-亚硝基化候选物的调节剂的作用。新的证据表明，蛋白质S-亚硝基化普遍参与植物对盐胁迫的反应的调节。然而,关于盐应激反应调控中这种关键的分子修正知之甚少。这里,我们描述了目前对植物中蛋白质S-亚硝基化响应盐胁迫的调节机制的理解，并强调了该领域的关键挑战。
