Commandeering channel voltage sensors for secretion, cell turgor, and volume control

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
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Blatt, Professor Michael and Larson, Dr Emily and Karnik, Dr Rucha and Zhang, Dr Ben and Waghmare, Dr Sakharam and Lefoulon, Dr Cecile
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 > Institute of Molecular Cell and Systems Biology
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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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
563751MAGIC - A Multi-tiered approach to generating increased carbon dioxide in the chloroplastMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/I024496/1RI MOLECULAR CELL & SYSTEMS BIOLOGY
616991Directed control of secretory vesicle fusionMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/K015893/1RI MOLECULAR CELL & SYSTEMS BIOLOGY
626121Stomatal-based systems analysis of water use efficiencyMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/L001276/1RI MOLECULAR CELL & SYSTEMS BIOLOGY
563753MAGIC - A Multi-tiered approach to generating increased carbon dioxide in the chloroplastMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/M01133X/1RI MOLECULAR CELL & SYSTEMS BIOLOGY
656891Analysing GORK clustering for enhanced stomatal controlMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/M001601/1RI MOLECULAR CELL & SYSTEMS BIOLOGY
650621Developing a synthetic approach to manipulating guard cell membrane transport and stomatal controlMichael BlattBiotechnology and Biological Sciences Research Council (BBSRC)BB/L019205/1RI MOLECULAR CELL & SYSTEMS BIOLOGY