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The twins K+ and Na+ in plants
Citation
Benito, B and Haro, R and Amtmann, A and Cuin, TA and Dreyer, I, The twins K+ and Na+ in plants, Journal of Plant Physiology, 171, (9) pp. 960-964. ISSN 0176-1617 (2014) [Refereed Article]
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DOI: doi:10.1016/j.jplph.2013.10.014
Abstract
In the earth’s crust and in seawater, K+ and Na+ are by far the most available monovalent inorganic cations. Physico-chemically, K+ and Na+ are very similar, but K+ is widely used by plants whereas Na+ can easily reach toxic levels. Indeed, salinity is one of the major and growing threats to agricultural production. In this article, we outline the fundamental bases for the differences between Na+ and K+. We present the foundation of transporter selectivity and summarize findings on transporters of the HKT type, which are reported to transport Na+ and/or Na+ and K+, and may play a central role in Na+ utilization and detoxification in plants. Based on the structural differences in the hydration shells of K+ and Na+, and by comparison with sodium channels, we present an ad hoc mechanistic model that can account for ion permeation through HKTs.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | HKT, potassium, sodium, transport mechanism |
| Research Division: | Biological Sciences |
| Research Group: | Plant Biology |
| Research Field: | Plant Physiology |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Environmentally Sustainable Plant Production |
| Objective Field: | Management of Gaseous Waste from Plant Production (excl. Greenhouse Gases) |
| Author: | Cuin, TA (Dr Tracey Cuin) |
| ID Code: | 127011 |
| Year Published: | 2014 |
| Web of Science® Times Cited: | 57 |
| Deposited By: | Agriculture and Food Systems |
| Deposited On: | 2018-07-06 |
| Last Modified: | 2018-07-09 |
| Downloads: | 0 |
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