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Phylogenetic diversity and physiological roles of plant monovalent cation/H(+)antiporters


Isayenkov, SV and Dabravolski, SA and Pan, T and Shabala, SN, Phylogenetic diversity and physiological roles of plant monovalent cation/H(+)antiporters, Frontiers in Plant Science, 11 Article 573564. ISSN 1664-462X (2020) [Refereed Article]


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Copyright 2020 The Author(s) Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.3389/fpls.2020.573564


The processes of plant nutrition, stress tolerance, plant growth, and development are strongly dependent on transport of mineral nutrients across cellular membranes. Plant membrane transporters are key components of these processes. Among various membrane transport proteins, the monovalent cation proton antiporter (CPA) superfamily mediates a broad range of physiological and developmental processes such as ion and pH homeostasis, development of reproductive organs, chloroplast operation, and plant adaptation to drought and salt stresses. CPA family includes plasma membrane-bound Na+/H(+)exchanger (NhaP) and intracellular Na+/H(+)exchanger NHE (NHX), K(+)efflux antiporter (KEA), and cation/H(+)exchanger (CHX) family proteins. In this review, we have completed the phylogenetic inventory of CPA transporters and undertaken a comprehensive evolutionary analysis of their development. Compared with previous studies, we have significantly extended the range of plant species, including green and red algae and Acrogymnospermae into phylogenetic analysis. Our data suggest that the multiplication and complexation of CPA isoforms during evolution is related to land colonisation by higher plants and associated with an increase of different tissue types and development of reproductive organs. The new data extended the number of clades for all groups of CPAs, including those for NhaP/SOS, NHE/NHX, KEA, and CHX. We also critically evaluate the latest findings on the biological role, physiological functions and regulation of CPA transporters in relation to their structure and phylogenetic position. In addition, the role of CPA members in plant tolerance to various abiotic stresses is summarized, and the future priority directions for CPA studies in plants are discussed.

Item Details

Item Type:Refereed Article
Keywords:NhaP, Na+, H(+)exchanger, NHE, K+-efflux antiporter, KEA, cation, H(+)exchanger, CHX, molecular phylogeny
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Agrochemicals and biocides (incl. application)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Environmentally sustainable plant production
Objective Field:Environmentally sustainable plant production not elsewhere classified
UTAS Author:Shabala, SN (Professor Sergey Shabala)
ID Code:151884
Year Published:2020
Web of Science® Times Cited:31
Deposited By:TIA - Research Institute
Deposited On:2022-08-08
Last Modified:2022-09-07
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