The ultrastructural localization of a cholinesterase in the body muscle of plaice (Pleuronectes platessa) |
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Authors: | Johan Lundin Birgitta Hellström |
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Affiliation: | (1) Departmnt 1, Research Institute of National Defence, 4 Sundbyberg;(2) The Department of Anatomy and Histology, and The Laboratory for Electron Microscopy, Royal Veterinary College, Stockholm, Sweden |
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Abstract: | Summary By means of a histochemical method adapted for electron microscopy a cholinesterase in body muscle cells of plaice (Pleuronectes platessa) has been localized to the sarcolemma. The cholinesterase activity disappeared from the sarcolemma after the muscle tissue had been incubated with a bacterial enzyme, which had earlier been shown, by biochemical methods, to be able to liberate this cholinesterase activity from plaice muscle.The provision of live plaices from Kristineberg Zoological Station, Fiskebäckskil, Sweden, is gratefully acknowledged. We are greatly indebted to Dr. Åke Bovallius, FOA, who provided the starting material for the bacterial enzyme. We would like to express our sincere thanks to Prof. Lennart Nicander for valuable discussions and for placing the resources of the Department of Anatomy and Histology, Royal Veterinary College, to our disposal. |
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