Abstract
Higher plants show great variation in their selectivity of K+ and Na+ uptake and transport7,12. According to these authors, several mechanisms can be responsible for the selective uptake of alkali cations. These include influx selectivity and K+ — Na+ exchange at the plasmalemma, selective accumulation across the tonoplast and reabsorption of sodium from the xylem sap in exchange for K+. These mechanisms are often combined and variably realized in different species and proved to be genetically determined9 as could be shown e.g. for soybean varieties (ref.10 and Eggers, unpublished results).
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© 1983 Martinus Nijhoff/Dr W. Junk Publishers, The Hague/Boston/Lancaster
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Eggers, H., Jeschke, W.D. (1983). Comparison of K+ — Na+ selectivity mechanisms in roots of Fagopyrum and Triticum. In: Sarić, M.R., Loughman, B.C. (eds) Genetic Aspects of Plant Nutrition. Developments in Plant and Soil Sciences, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6836-3_26
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DOI: https://doi.org/10.1007/978-94-009-6836-3_26
Publisher Name: Springer, Dordrecht
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