Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.
Botany Section, School of Sciences, Maulana Azad National Urdu University, Hyderabad 500032, India.
Molecules. 2022 Dec 23;28(1):100. doi: 10.3390/molecules28010100.
Recently, the application of salicylic acid (SA) for improving a plant's resistance to abiotic stresses has increased. A large part of the irrigated land (2.1% out of 19.5%) is severely affected by salinity stress worldwide. In 2020, total production of wheat () was 761 million tons, representing the second most produced cereal after maize; therefore, research on its salinity tolerance is of world concern. Photosynthetic attributes such as net photosynthetic rate (P), stomatal conductance (gs), intercellular CO concentration (Ci), and transpiration rate (E) were increased significantly by the application of SA. Salt stress increased antioxidant enzyme activity; however, SA further boosted their activity along with proline level. We conclude that SA interacts with meristematic cells, thereby triggering biochemical pathways conductive to the increment in morphological parameters. Further research is required to dissect the mechanisms of SA within the wheat plants under stress.
最近，水杨酸（SA）在提高植物抗非生物胁迫方面的应用越来越多。全世界有很大一部分灌溉土地（占 19.5%的 2.1%）受到盐度胁迫的严重影响。2020 年，小麦（）的总产量为 7.61 亿吨，是继玉米之后产量第二大的谷物；因此，对其耐盐性的研究受到了全世界的关注。SA 的应用显著提高了净光合速率（P）、气孔导度（gs）、胞间 CO 浓度（Ci）和蒸腾速率（E）等光合属性。盐胁迫会增加抗氧化酶的活性；然而，SA 进一步提高了它们的活性以及脯氨酸水平。我们的结论是，SA 与分生细胞相互作用，从而触发有利于形态参数增加的生化途径。需要进一步的研究来剖析 SA 在胁迫下小麦植株中的作用机制。
