盐胁迫下植物Na+调节机制的研究进展

doi:10.13560/j.cnki.biotech.bull.1985.2019-0088

摘要/Abstract

摘要： 盐胁迫是限制农作物生产的主要非生物因素之一。土壤中过量的可溶性盐（主要指Na⁺）可使植物受到渗透胁迫、离子胁迫和氧化胁迫等次生胁迫。在高盐环境下,植物通过Na⁺外排或胞内区隔化等策略来降低胞内Na⁺浓度,进而重建或维持植物体内的离子稳态平衡。主要综述了盐胁迫下植物细胞维持Na⁺离子动态平衡的主要途径和调控机制的最新进展。对盐胁迫下离子动态平衡过程的深入了解将有助于创制更高耐逆性的作物品种,实现农业的可持续发展。

关键词: 盐胁迫, Na⁺离子动态平衡, Na⁺调节机制

Abstract: Salt stress is one of the main abiotic factors limiting crop production. Excessive soluble salt（mainly Na⁺）in soil leads to secondary stress such as osmotic stress,ion stress and oxidative stress in plants. Under high-salt stress,plants rely on Na⁺ efflux or ion compartmentation strategies to reduce cell Na⁺ concentration in cytoplasm and then reconstruct or maintain the ions homeostasis in plants. This paper mainly reviews the progress in pathway and regulation of Na⁺ ion dynamic balance in plant cells under salt stress. A thorough understanding of the ion dynamic equilibrium process is conducive to creating more stress-tolerant crop varieties and achieving sustainable agricultural development.

Key words: salt stress, Na⁺ homeostasis, Na⁺regulation mechanism

李晓院, 解莉楠. 盐胁迫下植物Na⁺调节机制的研究进展[J]. 生物技术通报, 2019, 35(7): 148-155.

LI Xiao-yuan, XIE Li-nan. Research Progress in Na⁺ Regulation Mechanism of Plants Under Salt Stress[J]. Biotechnology Bulletin, 2019, 35(7): 148-155.

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