Na+ transport in glycophytic plants: what we know and would like to know



    Corresponding author
    1. Australian Centre for Plant Functional Genomics, University of Adelaide, PMB1, Glen Osmond, SA, 5064, Australia and
      D. C. Plett. Fax: +61 8 8303 7102; e-mail:
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    1. Plant and Soil Science, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 3., DK-1871 Frederiksberg, Denmark
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This article is corrected by:

  1. Errata: Corrigendum Volume 33, Issue 11, 2000, Article first published online: 21 October 2010

D. C. Plett. Fax: +61 8 8303 7102; e-mail:


Soil salinity decreases the growth rate of plants and can severely limit the productivity of crop plants. The ability to tolerate salinity stress differs widely between species of plants as well as within species. As an important component of salinity tolerance, a better understanding of the mechanisms of Na+ transport will assist in the development of plants with improved salinity tolerance and, importantly, might lead to increased yields from crop plants growing in challenging environments. This review summarizes the current understanding of the components of Na+ transport in glycophytic plants, including those at the soil to root interface, transport of Na+ to the xylem, control of Na+ loading in the stele and partitioning of the accumulated Na+ within the shoot and individual cells. Using this knowledge, strategies to modify Na+ transport and engineer plant salinity tolerance, as well as areas of research which merit particular attention in order to further improve the understanding of salinity tolerance in plants, are discussed.