Application of an Electrokinetic Formulation to the Study of the Effect of Alkaline-earth Cations on the Absorption of K+-ions by Lemna minor

A double effect of Ca++ is observed on K+-absorption by Lemna minor: activation through coupled (probably metabolic) processes, and inhibition through a perturbation of the structure of the catalytical sites of K+-absorption. In contrast, Mg++, which also exhibits a structural inhibitory effect, has...

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Published in:Annals of botany 1974-06, Vol.38 (3), p.677-696
Main Authors: AYADI, A., STELZ, T., MONNIER, A., LASSALLES, J. P., THELLIER, M.
Format: Article
Language:English
Subjects:
Barley
Calcium
Calcium metabolism
Electrokinetics
Ions
Kinetics
Magnesium
Potassium
Thermodynamics
Velocity
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container_issue 3
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container_title Annals of botany
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creator AYADI, A.
STELZ, T.
MONNIER, A.
LASSALLES, J. P.
THELLIER, M.
description A double effect of Ca++ is observed on K+-absorption by Lemna minor: activation through coupled (probably metabolic) processes, and inhibition through a perturbation of the structure of the catalytical sites of K+-absorption. In contrast, Mg++, which also exhibits a structural inhibitory effect, has not apparently a metabolic actrvatory one. It seems that diffusive processes could account partly for the second phase of the dual-phase curves of absorption.
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source JSTOR Archival Journals and Primary Sources Collection; Oxford University Press:Jisc Collections:Oxford Journal Archive: Access period 2024-2025
subjects Barley
Calcium
Calcium metabolism
Electrokinetics
Ions
Kinetics
Magnesium
Potassium
Thermodynamics
Velocity
title Application of an Electrokinetic Formulation to the Study of the Effect of Alkaline-earth Cations on the Absorption of K+-ions by Lemna minor
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