Uneven HAK/KUP/KT Protein Diversity Among Angiosperms: Species Distribution and Perspectives
Open Access
- 9 February 2016
- journal article
- research article
- Published by Frontiers Media SA in Frontiers in Plant Science
Abstract
HAK/KUP/KT K+ transporters have been widely associated with K+ transport across membranes in bacteria, fungi and plants. Indeed some members of the plant HAK/KUP/KT family contribute to root K+ uptake, notably at low external concentrations. Besides such role in acquisition, several studies carried out in Arabidopsis have shown that other members are also involved in developmental processes. With the publication of new plant genomes, a growing interest on plant species other than Arabidopsis has become evident. In order to understand HAK/KUP/KT diversity in these new plant genomes, we discuss the evolutionary trends of 913 HAK/KUP/KT sequences identified in 46 genomes revealing five major groups with an uneven distribution among angiosperms, notably between dicotyledonous and monocotyledonous species. This information evidenced the richness of crop genomes in HAK/KUP/KT transporters and supports their study for unraveling novel physiological roles of such transporters in plants.Keywords
This publication has 47 references indexed in Scilit:
- Osmotic Stress Responses and Plant Growth Controlled by Potassium Transporters inArabidopsisPlant Cell, 2013
- Root gravitropism and root hair development constitute coupled developmental responses regulated by auxin homeostasis in the Arabidopsis root apexNew Phytologist, 2012
- Phylogenetic Analysis of K+ Transporters in Bryophytes, Lycophytes, and Flowering Plants Indicates a Specialization of Vascular PlantsFrontiers in Plant Science, 2012
- Differential regulation of the HAK5 genes encoding the high-affinity K+ transporters of Thellungiella halophila and Arabidopsis thalianaEnvironmental and Experimental Botany, 2009
- KT/HAK/KUP potassium transporters gene family and their whole-life cycle expression profile in rice (Oryza sativa)Molecular Genetics and Genomics, 2008
- The high affinity K+transporter AtHAK5 plays a physiological rolein plantaat very low K+concentrations and provides a caesium uptake pathway inArabidopsisJournal of Experimental Botany, 2008
- A Proteomics Dissection of Arabidopsis thaliana Vacuoles Isolated from Cell CultureMolecular & Cellular Proteomics, 2007
- Cloning of Arabidopsis and barley cDNAs encoding HAK potassium transporters in root and shoot cellsPhysiologia Plantarum, 2000
- AtKUP1: An Arabidopsis Gene Encoding High-Affinity Potassium Transport ActivityPlant Cell, 1998
- The HAK1 Gene of Barley Is a Member of a Large Gene Family and Encodes a High-Affinity Potassium TransporterPlant Cell, 1997