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Friend or Foe? Chloride patterning in halophytes


Bazihizina, N and Colmer, TD and Cuin, TA and Mancuso, S and Shabala, S, Friend or Foe? Chloride patterning in halophytes, Trends in Plant Science, 24, (2) pp. 142-151. ISSN 1360-1385 (2019) [Refereed Article]

Copyright Statement

Copyright 2018 Elsevier Ltd.

DOI: doi:10.1016/j.tplants.2018.11.003


In this opinion article, we challenge the traditional view that breeding for reduced Cl uptake would benefit plant salinity tolerance. A negative correlation between shoot Cl concentration and plant biomass does not hold for halophytes naturally salt tolerant species. We argue that, under physiologically relevant conditions, Cl uptake requires plants to invest metabolic energy, and that the poor selectivity of Cl-transporting proteins may explain the reported negative correlation between Cl accumulation and crop salinity tolerance. We propose a new paradigm: salinity tolerance could be achieved by improving the selectivity of some of the broadly selective anion-transporting proteins (e.g., for NO3>Cl), alongside tight control of Cl uptake, rather than targeting traits mediating its efflux from the root.

Item Details

Item Type:Refereed Article
Keywords:salinity, halophytes, chloride
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Grains and seeds not elsewhere classified
UTAS Author:Bazihizina, N (Dr Nadia Bazihizina)
UTAS Author:Cuin, TA (Dr Tracey Cuin)
UTAS Author:Shabala, S (Professor Sergey Shabala)
ID Code:130731
Year Published:2019
Web of Science® Times Cited:31
Deposited By:Agriculture and Food Systems
Deposited On:2019-02-08
Last Modified:2019-12-03

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