| | Vacuolar ion channels: Roles in plant nutrition and signallingEdited by Wilhelm Just Received 12 January 2010; received in revised form 17 February 2010; accepted 18 February 2010. published online 25 February 2010. Abstract Vacuoles play various roles in many physiologically relevant processes in plants. Some of the more prominent are turgor provision, the storage of minerals and nutrients, and cellular signalling. To fulfil these functions a complement of membrane transporters is present at the tonoplast. Prolific patch clamp studies have shown that amongst these, both selective and non-selective ion channels participate in turgor regulation, nutrient storage and signalling. This article reviews the physiological roles, expression patterns and structure function properties of plant vacuolar anion and cation channels that are gated by voltage and ligands. Abbreviations: cADPR, cyclic ADP-ribose, FV, fast vacuolar channel, IP3, myo-inositol 1,4,5-triphosphate, LV, lytic vacuole, NSCC, non-selective cation channel, PMF, proton motive force, PSV, protein storage vacuole, SV, slow vacuolar channel, VK, vacuolar K+ channel, TMD, transmembrane domain Department of Biology, Area 9, University of York, York YO10 5DD, UK  Corresponding author. Fax: +44 1904 328505.
PII: S0014-5793(10)00154-7 doi:10.1016/j.febslet.2010.02.050 © 2010 Federation of European Biochemical Societies | |
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ABSTRACT
