Abstract
Nonselective cation channels (NSCC) in the plasma membrane of higher plants form a large and diverse group of plant cation channels which are permeable for K+, Na+ and Ca2+. They include four classes: (1) constitutive NSCC; (2) NSCC activated by reactive oxygen species (ROS); (3) ligand-activated NSCC; and (4) mechanosensitive NSCC. Our understanding of physiological functions of NSCC has significantly progressed in the last few years. NSCC were demonstrated to be involved in nutritional uptake of K+, NH 4 + , Ca2+, Mg2+, micronutrients and trace elements, toxic Na+ influx, in ROS-, amino acid, purine- and cyclic nucleotide induced signalling, growth and development. Here, physiological roles of plant NSCC are reviewed and discussed.
Published Version
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