title: Model of Cation Transportation Mediated by High-Affinity Potassium Transporters (HKTs) in Higher Plants.
abstract: Trk/Ktr/HKT transporters probably were evolved from simple K(+) channels KcsA. HKT transporters, which mediate Na(+)-uniport or Na(+)/K(+)-symport, maintain K(+)/Na(+) homeostasis and increase salinity tolerance, can be classified into three subfamilies in higher plants. In this review, we systematically analyzed the characteristics of amino acids sequences and physiological functions of HKT transporters in higher plant. Furthermore, we depicted the hypothetical models of cations selection and transportation mediated by HKT transporters according to the highly conserved structure for the goal of better understanding the cations transportation processes.
authors.affiliation: Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China ; Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Su
authors.affiliation: Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China.
authors.forename: Weigui
authors.initials: W
authors.lastname: Luo
authors.affiliation: Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China ; Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, China.
authors.forename: Wanhuang
authors.initials: W
authors.lastname: Lin
authors.affiliation: Chengnan College, Hunan First Normal University, Changsha, China.
authors.forename: Liying
authors.initials: L
authors.lastname: Ma
authors.affiliation: Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China.
authors.forename: Mohammed Hunayun
authors.initials: MH
authors.lastname: Kabir
keywords: Cation transport; HKT transporters; K+/Na+ homeostasis; Na+-uniport; Na+/K+-symport