Klejchova, M. , Silva-Alvim, F. A.L., Blatt, M. R. and Alvim, J. C. (2021) Membrane voltage as a dynamic platform for spatio-temporal signalling, physiological and developmental regulation. Plant Physiology, 185(4), pp. 1523-1541. (doi: 10.1093/plphys/kiab032) (PMID:33598675)
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Abstract
Membrane voltage arises from the transport of ions through ion-translocating ATPases, ion-coupled transport of solutes, and ion channels, and is an integral part of the bioenergetic ′currency′ of the membrane. The dynamics of membrane voltage - so-called action, systemic, and variation potentials - have also led to a recognition of their contributions to signal transduction, both within cells and across tissues. Here we review the origins of our understanding of membrane voltage and its place as a central element in regulating transport and signal transmission. We stress the importance of understanding voltage as a common intermediate that acts both as a driving force for transport - an electrical ′substrate′ - and as a product of charge flux across the membrane, thereby interconnecting all charge-carrying transport across the membrane. The voltage interconnection is vital to signalling via second messengers that rely on ion flux, including cytosolic free Ca2+, H+, and the synthesis of reactive oxygen species generated by integral membrane, respiratory burst oxidases. These characteristics inform on the ways in which long-distance voltage signals and voltage oscillations give rise to unique gene expression patterns and influence physiological, developmental, and adaptive responses such as systemic acquired resistance to pathogens and to insect herbivory.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Klejchova, Mrs Martina and Blatt, Professor Michael and Alvim, Mr Jonas and Lima Silva Alvim, Mrs Fernanda |
| Authors: | Klejchova, M., Silva-Alvim, F. A.L., Blatt, M. R., and Alvim, J. C. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
| Journal Name: | Plant Physiology |
| Publisher: | Oxford University Press |
| ISSN: | 0032-0889 |
| ISSN (Online): | 1532-2548 |
| Published Online: | 03 February 2021 |
| Copyright Holders: | Copyright © 2021 The Authors |
| First Published: | First published in Plant Physiology 185(4): 1523-1541 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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