Institute of Biological Sciences, Campus Talca, Universidad de Talca, Talca 3465548, Chile.
Department of Life Sciences, College of Science, National University of Kaohsiung, Kaohsiung 811, Taiwan.
Int J Mol Sci. 2021 Mar 17;22(6):3082. doi: 10.3390/ijms22063082.
Soil salinity is one of the most limiting stresses for crop productivity and quality worldwide. In this sense, jasmonates (JAs) have emerged as phytohormones that play essential roles in mediating plant response to abiotic stresses, including salt stress. Here, we reviewed the mechanisms underlying the activation and response of the JA-biosynthesis and JA-signaling pathways under saline conditions in and several crops. In this sense, molecular components of JA-signaling such as MYC2 transcription factor and JASMONATE ZIM-DOMAIN (JAZ) repressors are key players for the JA-associated response. Moreover, we review the antagonist and synergistic effects between JA and other hormones such as abscisic acid (ABA). From an applied point of view, several reports have shown that exogenous JA applications increase the antioxidant response in plants to alleviate salt stress. Finally, we discuss the latest advances in genomic techniques for the improvement of crop tolerance to salt stress with a focus on jasmonates.
土壤盐度是全球范围内限制作物生产力和品质的最主要因素之一。在这种情况下，茉莉酸（JAs）作为植物激素出现，在介导植物对包括盐胁迫在内的非生物胁迫的反应中发挥着重要作用。在这里，我们综述了盐胁迫下 JA 生物合成和 JA 信号通路的激活和响应的机制，以及几种作物中的情况。在这方面，JA 信号转导的分子组成部分，如 MYC2 转录因子和 JASMONATE ZIM-DOMAIN (JAZ) 抑制剂，是 JA 相关反应的关键参与者。此外，我们还综述了 JA 和其他激素（如脱落酸（ABA））之间的拮抗和协同作用。从应用的角度来看，有几项报告表明，外源 JA 的应用增加了植物的抗氧化反应，以减轻盐胁迫。最后，我们讨论了基因组技术在提高作物耐盐性方面的最新进展，重点是茉莉酸。
