The role of plant cation/proton antiporter gene family in salt tolerance

  • Q. Jia
  • C. Zheng
  • S. Sun
  • H. Amjad
  • K. Liang
  • W. Lin
Review
  • 27 Downloads

Abstract

Salinity is one of the major abiotic constraints to agriculture. The physiological and molecular mechanisms of salt tolerance have been studied in plants for many years. The regulation of osmosis and ion homeostasis is crucial. A lot of important components involved in plant responses to salt stress have been identified. Among them, ion transporters and channels take an essential role in ion homeostasis, mainly for Na+, Cl-, and K+. Until now, many cation antiporters important for salt tolerance in plants have been characterized. Among them, the monovalent cation/proton antiporters (CPA) family is one of the most important families, including sodium proton exchangers (NHXs), K+-efflux antiporters (KEAs), and cation/H+ exchangers (CHXs). Here, the current knowledge of the plant CPA family in responses to salt stress was reviewed. The regulation mechanisms were also included and discussed.

Additional key words

Na+/H+ exchanger K+-efflux antiporter cation/H+ exchanger 

Abbreviations

ABI2

abscisic acid-insensitive 2

CaM15

calmodulin-like protein 15

CBL

calcineurin B-like

CDS

coding sequence

CHX

cation/H+ exchanger

CIPK24

CBL-interacting serine/threonine-protein kinase 24

CPA

cation/proton antiporter

EIN3

ethylene-insensitive 3

ER

endoplasmic reticulum

ESE1

ethylene and salt-inducible ERF1

GI

GIGANTEA

GUS

β-glucuronidase

HAK5

high-affinity K+ transporter 5

HKT

high-affinity K+ transporter

KEA

K+-efflux antiporter

KUP1

K+ uptake transporter

NaKR3

sodium potassium root defective 3

NHX

sodium proton exchanger

NSCCs

non selective channels

PM

plasma membrane

PM-ATPase

plasma membrane H+-ATPase

PM-PPase

plasma membrane H+-PPase

PVC

pre-vacuolar compartments

ROS

reactive oxygen species

SCABP8

SOS3-like calcium binding protein 8

SOS

salt overly sensitive

TF

transcription factor

TGN

trans-Golgi network

USP

universal stress protein

UTR

untranslated region

V-ATPase

tonoplast H+-ATPase

V-PPase

tonoplast H+-PPase

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Supplementary material

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Copyright information

© The Institute of Experimental Botany 2018

Authors and Affiliations

  • Q. Jia
    • 1
    • 2
  • C. Zheng
    • 1
  • S. Sun
    • 1
  • H. Amjad
    • 2
  • K. Liang
    • 1
  • W. Lin
    • 1
    • 2
  1. 1.Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop ScienceFujian Agriculture and Forestry UniversityFuzhouP.R. China
  2. 2.Key Laboratory of Crop Ecology and Molecular PhysiologyFujian Province UniversityFuzhouP.R. China

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