Light-induced changes of cytosolic pH in Eremosphaera viridis: recordings and kinetic analysis

Abstract

ATPase in the plasmalemma. Thus recovery from acid load in the cytosol can be performed by proton transloca-Short-term light-induced pH changes were measured tion across one of the adjacent membranes, tonoplast or by means of pH-selective microelectrodes in the uniplasmalemma, or, alternatively, by a biochemical pH-stat cellular green alga Eremosphaera viridis. Cytosolic pH mechanism. It is still unknown which mechanisms contribchanges were always transient and reversible within ute to the pH-stat mechanism under varying conditions. 1-3 min. Taking into account the low-pass filtering by