Yang Hua, Fang Rui, Luo Ling, Yang Wei, Huang Qiong, Yang Chunlin, Hui Wenkai, Gong Wei, Wang Jingyan
Provincial Key Laboratory of Forestry Ecological Engineering of Sichuan Province, College of Forestry, Sichuan Agricultural UR.A.niversity, Chengdu, China.
School of Environment, Sichuan Agricultural University, Chengdu, China.
Front Plant Sci. 2023 Aug 28;14:1226041. doi: 10.3389/fpls.2023.1226041. eCollection 2023.
Salicylic acid (SA) has been recognized as a promising molecule for improving abiotic stress tolerance in plants due to its ability to enhance antioxidant defense system, and promote root architecture system. Recent research has focused on uncovering the mechanisms by which SA confers abiotic stress tolerance in horticultural crops. SA has been shown to act as a signaling molecule that triggers various physiological and morphological responses in plants. SA regulates the production of reactive oxygen species (ROS). Moreover, it can also act as signaling molecule that regulate the expression of stress-responsive genes. SA can directly interact with various hormones, proteins and enzymes involved in abiotic stress tolerance. SA regulates the antioxidant enzymes activities that scavenge toxic ROS, thereby reducing oxidative damage in plants. SA can also activate protein kinases that phosphorylate and activate transcription factors involved in stress responses. Understanding these mechanisms is essential for developing effective strategies to improve crop resilience in the face of changing environmental conditions. Current information provides valuable insights for farmers and plant researchers, offering new strategies to enhance crop resilience and productivity in the face of environmental challenges. By harnessing the power of SA and its signaling pathways, farmers can develop more effective stress management techniques and optimize crop performance. Plant researchers can also explore innovative approaches to breed or engineer crops with enhanced stress tolerance, thereby contributing to sustainable agriculture and food security.
水杨酸（SA）因其能够增强抗氧化防御系统并促进根系结构系统，已被公认为是一种有望提高植物非生物胁迫耐受性的分子。最近的研究集中在揭示SA赋予园艺作物非生物胁迫耐受性的机制。SA已被证明是一种信号分子，可触发植物中的各种生理和形态反应。SA调节活性氧（ROS）的产生。此外，它还可以作为调节胁迫响应基因表达的信号分子。SA可以直接与参与非生物胁迫耐受性的各种激素、蛋白质和酶相互作用。SA调节清除有毒ROS的抗氧化酶活性，从而减少植物中的氧化损伤。SA还可以激活蛋白激酶，这些蛋白激酶磷酸化并激活参与胁迫反应的转录因子。了解这些机制对于制定有效的策略以提高作物在不断变化的环境条件下的恢复力至关重要。当前的信息为农民和植物研究人员提供了有价值的见解，提供了在面对环境挑战时增强作物恢复力和生产力的新策略。通过利用SA及其信号通路的力量，农民可以开发更有效的胁迫管理技术并优化作物性能。植物研究人员还可以探索创新方法来培育或改造具有更强胁迫耐受性的作物，从而为可持续农业和粮食安全做出贡献。
