植物高亲和钾离子转运蛋白HAK功能研究进展

doi:10.13560/j.cnki.biotech.bull.1985.2020-0152

摘要/Abstract

摘要： 钾（Potassium,K）是植物生长发育重要的营养元素,素有“抗逆元素”和“品质元素”之称。在低钾环境下植物主要利用高亲和的转运蛋白进行钾离子的吸收和转运,KUP/HAK/KT作为植物体内钾离子高亲和转运蛋白家族中最大,成员最多的家族,在植物高亲和转运钾离子过程中发挥关键作用。系统阐述了植物KUP/HAK/KT家族的基本情况及其分类、高亲和钾离子转运蛋白HAK的系统发育分析、HAK转运蛋白在提高植物钾吸收,影响植物生长发育,增强植物抵抗生物胁迫和非生物胁迫能力等方面的功能研究,最后展望了钾离子转运蛋白HAK后续有待解决的问题。深入了解HAK钾转运蛋白在植物体内的作用机制对于有效提高钾肥的利用效率,提升作物产量与品质,促进农业发展等方面具有重要的现实意义。

关键词: 钾离子, 高亲和钾转运蛋白, HAK

Abstract: Potassium（K）is an important nutrient element for plant growth and development,and known as the “stress-resistant element” and “quality element”. In low-potassium environments,plants mainly use high-affinity transporters to absorb and transport potassium ions. The KUP/HAK/KT family,the largest high-affinity potassium transport family in the plant,plays a key role in the affinity transport of potassium ions. Here we descripted the basic situation and classification of the KUP/ HAK/KT family of plants,the phylogenetic analysis of the high-affinity potassium ion transporter HAK,the functional studies of the HAK transporter in increasing plant potassium absorption,affecting plant growth and development,and enhancing plant capabilities of resisting biological stress and abiotic stress. Finally,we prospected the to-be-solved issues related to the potassium ion transporter HAK. The deep understanding of the mechanism of plant HAK potassium transporters is of great practical significance in improving the efficiency of potassium fertilizer using,increasing crop yield and quality,and promoting agricultural development.

Key words: potassium ion, high affinity potassium transporter, HAK

苏文, 刘敬, 王冰, 李魏, 戴良英. 植物高亲和钾离子转运蛋白HAK功能研究进展[J]. 生物技术通报, 2020, 36(8): 144-152.

SU Wen, LIU Jing, WANG Bing, LI Wei, DAI Liang-ying. Research Progress on the HAK Function of Plant High Affinity Potassium Ion Transporter[J]. Biotechnology Bulletin, 2020, 36(8): 144-152.

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