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Quarterly Journal of Microscopical Science, Vol s3-104, 401-412, Copyright © 1963 by Company of Biologists

Thiamine Pyrophosphatase, Acid Phosphatase, and Alkaline Phosphatase in the Neurones of Helix Aspersa

NANCY J. LANE 1

1 Cytological Laboratory, Department of Zoology, University Museum, Oxford

All three phosphatases have been found to be localized mainly in the cortices of bodies which have the distribution, size, and shape of the ‘blue’ and yellow lipid globules. Colouring neurone preparations with the lysochrome Sudan IV, either before or after incubation for thiamine pyrophosphatase or acid phosphatase activity, shows a sudanophil reaction in the medullary spaces surrounded by the cortices that hydrolyse both phosphates. It is concluded that the acid phosphatase and thiamine pyrophosphatase activities, which in vertebrates are present in the lysosomes and Golgi lamellae respectively, are mainly found, in these invertebrate neurones, in the phospholipid lamellae which form the externa of certain of the lipid globules present in the cytoplasm.






© The Company of Biologists Ltd 1963