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. 1989 Jul;90(3):939-42.
doi: 10.1104/pp.90.3.939.

Two modes of rubidium uptake in sunflower plants

M Benlloch  1 , I Moreno, A Rodríguez-Navarro
Affiliations

Two modes of rubidium uptake in sunflower plants

M Benlloch et al. Plant Physiol. 1989 Jul.

Abstract

The Rb(+)-uptake kinetics in K(+)-starved sunflower (Helianthus annuus) plants can be explained by the addition of two Michaelis-Menten equations. In contrast, Rb(+) uptake can be described by a single Michaelis-Menten equation in normal-K(+) plants. Differences in the K(m)s and in the Arrhenius plots of Rb(+) uptake in the two types of plants suggest two uptake modes.

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