
%0 Journal Article
%A Chow, WS 
%A Wagner, AG 
%A Hope, AB 
%T Light-dependent Redistribution of Ions in Isolated Spinach Chloroplasts
%J Functional Plant Biology
%D 1976/12/01
%V 3
%N 6
%P 853-861
%K 
%R https://doi.org/10.1071/PP9760853
%U https://www.publish.csiro.au/paper/PP9760853 
%X The Mg2+, K+ and Cl- contents of chloroplast pellets collected after centrifugation in light and dark conditions have been determined in a specific reaction medium at pH 7.8 and 6.6. It was found that the light-induced proton uptake by chloroplasts was electrically balanced mainly by Mg2+ efflux and to a lesser extent by K+ efflux. Unlike results in other studies, Cl- influx was rather small.    A model for the ionic relations of envelope-free chloroplasts is considered. Light-induced changes in the ionic contents calculated from the model are in agreement with our observations. An attempt is made to apply similar considerations to another set of reported data. 
