Mendis Chamara L, Padmathilake Rasanie E, Attanayake Renuka N, Perera Dinum
Department of Bioprocess Technology, Faculty of Technology, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka.
Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura 50008, Sri Lanka.
Int J Mol Sci. 2025 Jun 20;26(13):5936. doi: 10.3390/ijms26135936.
species are halophytic plants that thrive in environments with moderate to high salinity. Owing to its high nutritional value and diverse bioactive constituents, holds promise for applications in the food, feed, pharmaceutical, cosmetic, and bioenergy sectors. Understanding its salt tolerance mechanisms is important for developing crops suited to saline soils and water. Recent studies have revealed that adapts to salinity through diverse physiological, biochemical, and molecular strategies. Despite these advances, a comprehensive synthesis of existing knowledge remains absent, hindering its effective application in crop improvement. In this review, recent advances in the understanding of 's salinity tolerance are synthesized, with emphasis placed on key mechanisms: cell wall nano-mechanics, ion regulation and compartmentation, antioxidant defense, osmotic balance, phytohormonal control, signal transduction, transcriptional regulation, and the expression of salt-responsive proteins. The interactions among these mechanisms are also examined, along with their roles in conferring tolerance to additional abiotic stresses such as drought, submergence, and extreme temperatures. Finally, the potential applications of these findings in genetic engineering for improving salt tolerance in crops are discussed, along with proposed directions for future research to promote the use of halophytes in sustainable agriculture.
某些物种是盐生植物,能在中度至高度盐度的环境中茁壮成长。由于其高营养价值和多样的生物活性成分,在食品、饲料、制药、化妆品和生物能源领域具有应用前景。了解其耐盐机制对于培育适合盐碱土壤和水的作物很重要。最近的研究表明,该物种通过多种生理、生化和分子策略适应盐度。尽管有这些进展,但仍缺乏对现有知识的全面综合,这阻碍了其在作物改良中的有效应用。在这篇综述中,综合了对该物种耐盐性理解的最新进展,重点关注关键机制:细胞壁纳米力学、离子调节与区室化、抗氧化防御、渗透平衡、植物激素控制、信号转导、转录调控以及盐响应蛋白的表达。还研究了这些机制之间的相互作用,以及它们在赋予对干旱、淹水和极端温度等其他非生物胁迫耐受性方面的作用。最后,讨论了这些发现在作物耐盐性基因工程中的潜在应用,以及为促进盐生植物在可持续农业中的应用而提出的未来研究方向。