Plant ion channels: Gene families, physiology, and functional genomics analyses

John M. Ward, Pascal M̈aser, Julian I. Schroeder

Research output: Contribution to journalReview article

215 Citations (Scopus)

Abstract

Distinct potassium, anion, and calcium channels in the plasma membrane and vacuolar membrane of plant cells have been identified and characterized by patch clamping. Primarily owing to advances in Arabidopsis genetics and genomics, and yeast functional complementation, many of the corresponding genes have been identified. Recent advances in our understanding of ion channel genes that mediate signal transduction and ion transport are discussed here. Some plant ion channels, for example, ALMT and SLAC anion channel subunits, are unique. The majority of plant ion channel families exhibit homology to animal genes; such families include both hyperpolarizationand depolarization-activated Shaker-type potassium channels, CLC chloride transporters/channels, cyclic nucleotide-gated channels, and ionotropic glutamate receptor homologs. These plant ion channels offer unique opportunities to analyze the structural mechanisms and functions of ion channels. Here we review gene families of selected plant ion channel classes and discuss unique structure-function aspects and their physiological roles in plant cell signaling and transport.

Original languageEnglish (US)
Pages (from-to)59-82
Number of pages24
JournalAnnual Review of Physiology
Volume71
DOIs
StatePublished - Mar 2009

Fingerprint

Genomics
Ion Channels
Genes
Plant Cells
Anions
Shaker Superfamily of Potassium Channels
Cyclic Nucleotide-Gated Cation Channels
Ionotropic Glutamate Receptors
Chloride Channels
Potassium Channels
Ion Transport
Calcium Channels
Arabidopsis
Constriction
Signal Transduction
Yeasts
Cell Membrane
Membranes

Keywords

  • Arabidopsis
  • Comparative genomics
  • Guard cells
  • Stomatal regulation

Cite this

Plant ion channels : Gene families, physiology, and functional genomics analyses. / Ward, John M.; M̈aser, Pascal; Schroeder, Julian I.

In: Annual Review of Physiology, Vol. 71, 03.2009, p. 59-82.

Research output: Contribution to journalReview article

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