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The energy cost of the tonoplast futile sodium leak
Citation
Shabala, S and Chen, G and Chen, ZH and Pottosin, I, The energy cost of the tonoplast futile sodium leak, New Phytologist, 225, (3) pp. 1105-1110. ISSN 0028-646X (2020) [Refereed Article]
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Abstract
Active removal of Na+ from the cytosol into the vacuole plays a critical role in salinity tissue tolerance, but another, often neglected component of this trait is Na+ retention in vacuoles. This retention is based on an efficient control of Na+‐permeable slow‐ and fast‐vacuolar channels that mediate the back‐leak of Na+ into cytosol and, if not regulated tightly, could result in a futile cycle. This Tansley insight summarizes our current knowledge of regulation of tonoplast Na+‐permeable channels and discusses the energy cost of vacuolar Na+ sequestration, under different scenarios. We also report on a phylogenetic and bioinformatic analysis of the plant two‐pore channel family and the difference in its structure and regulation between halophytes and glycophytes, in the context of salinity tolerance.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | H+-ATPase, halophyte, salinity stress, tonoplast ion channels, two-pore channel 1 (TPC1), vacuolar sodium sequestration, tonoplast, SV, VF |
| Research Division: | Biological Sciences |
| Research Group: | Plant biology |
| Research Field: | Plant physiology |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Other plant production and plant primary products |
| Objective Field: | Other plant production and plant primary products not elsewhere classified |
| UTAS Author: | Shabala, S (Professor Sergey Shabala) |
| ID Code: | 136645 |
| Year Published: | 2020 |
| Web of Science® Times Cited: | 23 |
| Deposited By: | Agriculture and Food Systems |
| Deposited On: | 2020-01-11 |
| Last Modified: | 2021-07-19 |
| Downloads: | 0 |
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