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Curr Opin Biotechnol. 2015 Apr;32:113-120. doi: 10.1016/j.copbio.2014.11.025. Epub 2014 Dec 18.

HKT transporters mediate salt stress resistance in plants: from structure and function to the field.

Author information

1
Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai 980-8579, Japan.
2
Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan.
3
Division of Biological Sciences, Cell and Developmental Biology Section, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA 92093-0116, USA.
4
Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai 980-8579, Japan. Electronic address: uozumi@biophy.che.tohoku.ac.jp.

Abstract

Plant cells are sensitive to salinity stress and do not require sodium as an essential element for their growth and development. Saline soils reduce crop yields and limit available land. Research shows that HKT transporters provide a potent mechanism for mediating salt tolerance in plants. Knowledge of the molecular ion transport and regulation mechanisms and the control of HKT gene expression are crucial for understanding the mechanisms by which HKT transporters enhance crop performance under salinity stress. This review focuses on HKT transporters in monocot plants and in Arabidopsis as a dicot plant, as a guide to efforts toward improving salt tolerance of plants for increasing the production of crops and bioenergy feedstocks.

PMID:
25528276
DOI:
10.1016/j.copbio.2014.11.025
[Indexed for MEDLINE]

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