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Quarterly Journal of Microscopical Science, Vol s3-100, 401-412, Copyright © 1959 by Company of Biologists

The Connective Tissue Sheath of the Locust Nervous System: A Histochemical Study

DOREEN E. ASHHURST 1

1 Department of Zoology, The University, Manchester

The connective tissue sheath surrounding the nervous system of Locusta migratoria has been studied histochemically. It consists of an outer non-cellular layer, the neural lamella, and an inner layer of cells, the sheath-cells.

The neural lamella has been identified as being composed of a collagen-type protein and neutral mucopolysaccharide on the evidence of its histochemical reactions and the identification of hydroxyproline by paper chromatography in a hydrolysate of the neural lamella.

The sheath-cells possess large numbers of lipochondria composed of phospholipids and cerebrosides, and small spherical mitochondria. The cytoplasm also contains lipids (some of which may be cerebrosides), glycogen, and RNA.






© The Company of Biologists Ltd 1959