植物研究 ›› 2024, Vol. 44 ›› Issue (5): 641-654.doi: 10.7525/j.issn.1673-5102.2024.05.001

• 研究综述 •    

Ca2+-ATPase参与植物耐盐性调控的研究进展

马秀英1,2, 李金克3, 周晓阳3, 陈少良2()   

  1. 1.济宁学院生命科学与工程学院,曲阜 273155
    2.北京林木分子设计育种高精尖创新中心,北京林业大学生物科学与技术学院,北京 100083
    3.北京林业大学实验室与设备管理处,北京 100083
  • 收稿日期:2024-02-19 出版日期:2024-09-20 发布日期:2024-09-24
  • 通讯作者: 陈少良 E-mail:lschen@bjfu.edu.cn
  • 作者简介:马秀英(1977—),女,讲师,主要从事树木逆境生理学研究。
  • 基金资助:
    国家自然科学基金项目(32071730);北京市自然科学基金项目(6182030)

Research Progress of Ca2+-ATPase Involved in Regulation of Plant Salt Tolerance

Xiuying MA1,2, Jinke LI3, Xiaoyang ZHOU3, Shaoliang CHEN2()   

  1. 1.College of Life Science and Biological Engineering,Jining University,Qufu 273155
    2.Beijing Advanced Innovation Center for Tree Breeding by Molecular Design,College of Biological Sciences and Technology,Beijing Forestry University,Beijing 100083
    3.Laboratory and Equipment Management Office,Beijing Forestry University,Beijing 100083
  • Received:2024-02-19 Online:2024-09-20 Published:2024-09-24
  • Contact: Shaoliang CHEN E-mail:lschen@bjfu.edu.cn

摘要:

盐胁迫下细胞质Ca2+浓度升高,细胞会激活Ca2+调节的靶酶或者与Ca2+高度亲和的受体蛋白,其中,与Ca2+高度亲和的受体蛋白中,植物钙泵(Ca2+-ATPase)是P型ATP酶,包含内质网Ca2+-ATPases与质膜Ca2+-ATPases,通过主动运输将Ca2+从细胞质转移到质外体或细胞器。大量研究表明,植物的耐盐性在很大程度上与其维持钙泵即Ca2+-ATPase活性的能力有关。多种植物Ca2+-ATPase对盐胁迫表现出敏感性,并受到外源Ca2+的保护,表明外源钙处理与Ca2+-ATPase活性可能在盐胁迫下的细胞内钙稳态和信号转导中起重要作用。该研究概述了植物Ca2+-ATPase类型、结构与性质,亚细胞定位Ca2+-ATPase及外源钙与亚细胞定位Ca2+-ATPase参与植物耐盐调控研究进展,重点对质膜、液泡膜、核膜、内质网及高尔基体Ca2+-ATPases参与植物耐盐调控的研究进展进行了综述,并提出展望。该研究为了解植物耐盐性生理及分子机制提供帮助,同时为作物耐盐栽培提供新思路。

关键词: Ca2+-ATPase, 质膜, 液泡膜, 内质网, 核膜, 盐胁迫

Abstract:

When cytosolic Ca2+ concentration is increased under salt stress, cells would activate Ca2+-regulated target enzymes or induce Ca2+ bind to Ca2+ high-affinity receptor proteins. Among them, plant Ca2+-ATPases are P-type ATPases, including endoplasmic reticulum Ca2+-ATPase(ECAs) and plasma membrane Ca2+-ATPase(ACAs); they are able to translocate Ca2+ from the cytosol to apoplast or compartmentalize Ca2+ in organelles. Numerous studies have shown that salt tolerance of plants is largely related to their ability to maintain the activities of calcium pump, namely Ca2+-ATPases. The activities of Ca2+-ATPases in various plant species were sensitive to salt stress; exogenous Ca2+ application can alleviate cell injury by salt stress, suggesting that exogenous calcium -mediated Ca2+-ATPase might play an important role in intracellular calcium homeostasis and signal transduction. Therefore, this review summarized the types, structures and properties of plant Ca2+-ATPase, and the involvement of Ca2+-ATPase of subcellular localization in plant response to salt tolerance and the research progress of exogenous calcium and Ca2+-ATPase in regulation on plant salt tolerance. It emphasized potential roles of Ca2+-ATPases of plant plasma membrane, tonoplast, nuclear membrane, endoplasmic reticulum and Golgi in regulation of salt tolerance in plants, and presented an outlook in the field. This work provided help for a better understanding of physiological and molecular mechanisms of plant salt tolerance and provided new ideas for crop salt-tolerance cultivation.

Key words: Ca2+-ATPase, plasma membrane, tonoplast, endoplasmic reticulum, nuclear envelope, salt stress

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