Karnik, R. , Waghmare, S. , Zhang, B. , Larson, E., Lefoulon, C., Gonzalez, W. and Blatt, M. R. (2017) Commandeering channel voltage sensors for secretion, cell turgor, and volume control. Trends in Plant Science, 22(1), pp. 81-95. (doi: 10.1016/j.tplants.2016.10.006) (PMID:27818003) (PMCID:PMC5224186)
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Abstract
Control of cell volume and osmolarity is central to cellular homeostasis in all eukaryotes. It lies at the heart of the century-old problem of how plants regulate turgor, mineral and water transport. Plants use strongly electrogenic H+-ATPases, and the substantial membrane voltages they foster, to drive solute accumulation and generate turgor pressure for cell expansion. Vesicle traffic adds membrane surface and contributes to wall remodelling as the cell grows. Although a balance between vesicle traffic and ion transport is essential for cell turgor and volume control, the mechanisms coordinating these processes have remained obscure. Recent discoveries have now uncovered interactions between conserved subsets of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins that drive the final steps in secretory vesicle traffic and ion channels that mediate in inorganic solute uptake. These findings establish the core of molecular links, previously unanticipated, that coordinate cellular homeostasis and cell expansion.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Blatt, Professor Michael and Zhang, Dr Ben and Larson, Dr Emily and Karnik, Dr Rucha and Lefoulon, Dr Cecile and Waghmare, Dr Sakharam |
Authors: | Karnik, R., Waghmare, S., Zhang, B., Larson, E., Lefoulon, C., Gonzalez, W., and Blatt, M. R. |
College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
Journal Name: | Trends in Plant Science |
Publisher: | Elsevier |
ISSN: | 1360-1385 |
ISSN (Online): | 1878-4372 |
Published Online: | 28 October 2016 |
Copyright Holders: | Copyright © 2016 Elsevier Ltd. |
First Published: | First published in Trends in Plant Science 22(1):81-95 |
Publisher Policy: | Reproduced under a Creative Commons License |
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