Ion homeostasis

Amtmann, A. and Leigh, R. (2009) Ion homeostasis. In: Pareek, A., Sopory, S.K., Bohnert, H.J. and Govindjee, (eds.) Abiotic Stress Adaptation in Plants: Physiological, Molecular and Genomic Foundation. Springer: Dordrecht, pp. 245-262. ISBN 9789048131112 (doi:10.1007/978-90-481-3112-9_12)

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Publisher's URL: http://dx.doi.org/10.1007/978-90-481-3112-9_12

Abstract

Ion concentrations in cell compartments and tissues are maintained within particular limits that are optimal for plant performance. In this chapter we recapitulate the general processes that are needed for a functional ion homeostat and propose models of how these may apply to the regulation of ion concentrations in single cells and multicellular tissues. The role of K+ and Na+ homeostasis in the response of plants to salinity is then discussed, with particular emphasis on how cytoplasmic Na+ accumulation is minimized. The relative importance of Na+ exclusion, extrusion, and compartmentalization are considered. Finally the molecular mechanisms underlying these three strategies are described and their potential role in one model of tissue Na+ homeostasis in salt-grown plants is discussed.

Item Type:Book Sections
Status:Published
Glasgow Author(s) Enlighten ID:Amtmann, Professor Anna
Authors: Amtmann, A., and Leigh, R.
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Publisher:Springer
ISBN:9789048131112

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