K+ channel activity in plants: genes, regulations and functions.
Potassium (K(+)) is the most abundant cation in the cytosol, and plant growth requires that large amounts of K(+) are transported from the soil to the growing organs. K(+) uptake and fluxes within the plant are mediated by several families of transporters and channels. Here, we describe the different families of K(+)-selective channels that have been identified in plants, the so-called Shaker, TPK and Kir-like channels, and what is known so far on their regulations and physiological functions in the plant.
Lebaudy
Anne
A
Biochimie et Physiologie Moléculaire des Plantes, UMR 5004, CNRS/INRA/Monptellier SupAgro/UM2, 1 Place Viala, 34060 Montpellier Cedex 1, France. lebaudy@supagro.inra.fr
Véry
Anne-Aliénor
AA
Sentenac
Hervé
H
D004594:Electrophysiology; D017343:Genes, Plant; D017136:Ion Transport; D010802:Phylogeny; D010940:Plant Proteins / Q000145:classification / Q000235:genetics* / Q000378:metabolism*; D010944:Plants / Q000235:genetics* / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism; D015221:Potassium Channels / Q000145:classification / Q000235:genetics* / Q000378:metabolism*; D013347:Subcellular Fractions / Q000378:metabolism
D010940:Plant Proteins; D015221:Potassium Channels; D011188:Potassium