ATPase stimulated by Na+ or K+ in gills of the freshwater mussel Anodonta. |
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| Authors: | K Y Lagerspetz K E Senius |
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| Institution: | Zoophysiological Laboratory, Department of Biology, University of Turku, Finland. |
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| Abstract: | 1. Microsomal preparations from the gills of the freshwater mussel anodonta cygnea cellensis show Mg2+ -dependent Na+ - or K+ -stimulated ATPase activity, which is not inhibited by ouabain. 2. Na+ - or Ka+ -ATPase activity is decreased by Ca2+, acetylcholine, choline, and tetramethylammonium, but slightly increased by ethyl alcohol. 3. It is tentatively suggested that Na+ - or K+ -ATPase is involved in the mechanism of active monovalent cation uptake through the gills of freshwater mussels. |
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