Feng Di, Wang Lingyue, Ning Songrui, Peng Dianliang, Xu Haicheng, Sun Chitao, Sun Xiaoan
Weifang University of Science and Technology, Shouguang, Shandong 262700, China.
State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, Shaanxi, China.
J Agric Food Chem. 2024 Jan 10;72(1):65-79. doi: 10.1021/acs.jafc.3c06897. Epub 2023 Dec 22.
Plant flooding/waterlogging stress (FWS) can be a threat to food security worldwide due to climate change. To mitigate its potential devastation, numerous exogenous chemicals (ECs) have been used to demonstrate their effectiveness on alleviating FWS for the last 20 years. This review has summarized the most recent findings on use of various ECs as either nutrients or regulatory substances on crop plants under FWS and their roles involved in improving root respiration of seedlings, optimizing nutritional status, synthesizing osmotic regulators, enhancing the activity of antioxidant enzymes, adjusting phytohormone levels, maintaining photosynthetic systems, and activating flood-tolerance related gene expressions. The effect of ESs on alleviating plants under FWS proves to be beneficial and useful but rather limited unless they are applied on appropriate crops, at the right time, and with optimized methods. Further research should be focused on use of ESs in field settings and on their potential synergetic effect for more FWS tolerance.
由于气候变化，植物洪涝/渍水胁迫（FWS）可能对全球粮食安全构成威胁。为减轻其潜在破坏，在过去20年中，人们使用了多种外源化学物质（ECs）来证明它们在缓解FWS方面的有效性。本综述总结了关于各种ECs作为营养物质或调节物质在FWS下对作物植物的使用的最新发现，以及它们在改善幼苗根系呼吸、优化营养状况、合成渗透调节物质、增强抗氧化酶活性、调节植物激素水平、维持光合系统和激活耐涝相关基因表达中所起的作用。事实证明，ECs对缓解FWS下的植物是有益且有用的，但除非在适当的作物上、在正确的时间并以优化的方法施用，否则其效果相当有限。未来的研究应集中在ECs在田间环境中的使用以及它们对提高FWS耐受性的潜在协同效应上。
