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Cationic interactions in the absorption of calcium by red beet root slices


, : Cationic interactions in the absorption of calcium by red beet root slices. Meded Landbouwhogesch Opzqekingssta Staat Gent 30(2): 1085-1103

Ca45 was used to follow the absorption of Ca by red beet slices. The interaction of the cations K+, Na+, Mg++ and Ba++ was observed. The interpretation of the results according to the kinetic theories of Epstein and Hagen reveals the existence of a "competitive inhibition" of the absorption of Ca++ by the bivalent cations Mg++ and Ba++. On the other hand, the monovalent cations IT1* and Na+ had no influence on the uptake of Ca++ under above-mentioned conditions.

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