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Quarterly Journal of Microscopical Science, Vol s3-96, 49-56, Copyright © 1955 by Company of Biologists

The Cytoplasmic Inclusions of a Mammalian Sympathetic Neurone: A Histochemical Study

W. G. BRUCE CASSELMAN 1 and JOHN R. BAKER 1

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

1. The neurones studied were those of the anterior mesenteric and coeliac ganglia of immature rabbits.

2. Ectoplasm and endoplasm can be distinguished in these cells.

3. Two kinds of cytoplasmic inclusions occur. These are (a) spherical or spheroid lipid globules or lipochondria, which are confined to the endoplasm; and (b) very minute threads and granules, regarded as mitochondria.

4. A wide variety of histochemical tests was used. The results indicate that the lipochondria consist of galactolipid (cerebrosid) and phospholipid, though the smallest ones may perhaps consist of galactolipid only.

5. The objects regarded as mitochondria are too small for accurate investigation by in situ histochemical methods, but they give positive reactions for phospholipid and protein.






© The Company of Biologists Ltd 1955