Nonselective cation channels in plants

Vadim Demidchik*, Romola Jane Davenport, Mark Tester

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

294 Scopus citations

Abstract

Nonselective cation channels are a diverse group of ion channels characterized by their low discrimination between many essential and toxic cations. They are ubiquitous in plant tissues and are active in the plasma membrane, tonoplast, and other endomembranes. Members of this group are likely to function in low-affinity nutrient uptake, in distribution of cations within and between cells, and as plant Ca2+ channels. They are gated by diverse mechanisms, which can include voltage, cyclic nucleotides, glutamate, reactive oxygen species, and stretch. These channels dominate tonoplast cation transport, and the selectivity and gating mechanisms of tonoplast non-selective cation channels are comprehensively reviewed here. This review presents the first classification of plant nonselective cation channels and the first full description of nonselective cation channel candidate sequences in the Arabidopsis genome.

Original languageEnglish (US)
Pages (from-to)67-107
Number of pages41
JournalAnnual Review of Plant Biology
Volume53
DOIs
StatePublished - Dec 1 2002

Keywords

  • Cyclic nucleotide-gated channels
  • Electrophysiology
  • Glutamate receptors
  • Ion channels
  • Ion transport

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Plant Science
  • Cell Biology

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