| 植物HKT蛋白耐盐机制研究进展 |
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| 引用本文： | 王甜甜,郝怀庆,冯雪,景海春. 植物HKT蛋白耐盐机制研究进展[J]. 植物学报, 2018, 53(5): 710-725. DOI: 10.11983/CBB17230 |
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| 作者姓名： | 王甜甜 郝怀庆 冯雪 景海春 |
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| 作者单位： | 1中国科学院植物研究所, 资源植物重点实验室, 北京 1000932东营市园林局, 东营 2570913中国科学院内蒙古草业研究中心, 呼和浩特 1501004中国科学院大学, 北京 100039 |
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| 基金项目： | 国家自然科学基金(No.31301326) |
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| 摘 要： | 盐害是限制植物生长发育的重要环境因素, 对植物造成渗透胁迫和离子毒害。维持细胞及整株水平的Na+/K+平衡是植物重要的耐盐机制。目前, 已报道的高亲和性钾离子转运蛋白(HKT)具有钠、钾离子转运特性, 在植物体钠、钾离子长距离运输及分配过程中发挥重要作用。该文重点总结了淡土植物和盐土植物HKT蛋白的结构、功能及耐盐机理, 并对其在植物耐盐改良育种中的前景做出了展望。
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| 关 键 词： | HKT 离子平衡 耐盐机制 转运蛋白 |
| 收稿时间： | 2017-11-29 |
Research Advances in the Function of the High-affinity K+ Transporter (HKT) Proteins and Plant Salt Tolerance |
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| Wang Tiantian,Hao Huaiqing,Feng Xue,Jing Haichun. Research Advances in the Function of the High-affinity K+ Transporter (HKT) Proteins and Plant Salt Tolerance[J]. Bulletin of Botany, 2018, 53(5): 710-725. DOI: 10.11983/CBB17230 |
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| Authors: | Wang Tiantian Hao Huaiqing Feng Xue Jing Haichun |
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| Affiliation: | 1Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China2Dongying Landscape and Greening Department, Dongying 257091, China 3Inner Mongolia Research Center for Prataculture, Chinese Academy of Sciences, Huhehaote 150100, China4University of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Soil salinity affects the growth of plant species, which can cause osmotic stress and ionic toxicity in the plants. Therefore, it is crucial to maintain Na+/K+ homeostasis at the cellular and whole plant levels for plant salt tolerance. The high-affinity potassium transporters (HKTs) were found to have a ability to transport and distribute Na+ and K+ in plants. Here we summarize the advance about the structure and function of the HKT proteins from glycophytes and halophytes. Further discussion is directed to genetically modified and artificially designed transport proteins for genetic engineering of salt-tolerant plants. |
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| Keywords: | HKT ion homeostasis salt tolerance transport protein |
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