Zulfiqar Faisal, Nafees Muhammad, Chen Jianjun, Darras Anastasios, Ferrante Antonio, Hancock John T, Ashraf Muhammad, Zaid Abbu, Latif Nadeem, Corpas Francisco J, Altaf Muhammad Ahsan, Siddique Kadambot H M
Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
Mid-Florida Research and Education Center, Environmental Horticulture Department, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, United States.
Front Plant Sci. 2022 Sep 7;13:946922. doi: 10.3389/fpls.2022.946922. eCollection 2022.
Salt stress severely limits the productivity of crop plants worldwide and its detrimental effects are aggravated by climate change. Due to a significant world population growth, agriculture has expanded to marginal and salinized regions, which usually render low crop yield. In this context, finding methods and strategies to improve plant tolerance against salt stress is of utmost importance to fulfill food security challenges under the scenario of the ever-increasing human population. Plant priming, at different stages of plant development, such as seed or seedling, has gained significant attention for its marked implication in crop salt-stress management. It is a promising field relying on the applications of specific chemical agents which could effectively improve plant salt-stress tolerance. Currently, a variety of chemicals, both inorganic and organic, which can efficiently promote plant growth and crop yield are available in the market. This review summarizes our current knowledge of the promising roles of diverse molecules/compounds, such as hydrogen sulfide (HS), molecular hydrogen, nitric oxide (NO), hydrogen peroxide (HO), melatonin, chitosan, silicon, ascorbic acid (AsA), tocopherols, and trehalose (Tre) as potential primers that enhance the salinity tolerance of crop plants.
盐胁迫严重限制了全球农作物的产量，而气候变化又加剧了其不利影响。由于世界人口的显著增长，农业已扩展到边缘和盐碱化地区，这些地区的作物产量通常较低。在这种背景下，寻找提高植物耐盐胁迫能力的方法和策略对于应对人口不断增长情况下的粮食安全挑战至关重要。在植物发育的不同阶段，如种子或幼苗阶段进行植物引发，因其在作物盐胁迫管理中的显著作用而备受关注。这是一个有前景的领域，依赖于特定化学试剂的应用，这些试剂可以有效提高植物的耐盐胁迫能力。目前，市场上有多种无机和有机化学物质，它们能够有效促进植物生长和提高作物产量。本综述总结了我们目前对各种分子/化合物（如硫化氢（HS）、分子氢、一氧化氮（NO）、过氧化氢（HO）、褪黑素、壳聚糖、硅、抗坏血酸（AsA）、生育酚和海藻糖（Tre））作为潜在引发剂增强作物耐盐性的作用的认识。
