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Quarterly Journal of Microscopical Science, Vol s3-98, 235-240, Copyright © 1957 by Company of Biologists

The Formation of the Secretory Granules in the Liver-cells of the Slug, Anadenus altivagus

RAJINDER RISHI 1

1 Government of India Senior Research Scholar, Department of Zoology, Panjab University, Hoshiarpur, Panjab, India

The process of formation of secretory granules has been studied in the liver-cells of the slug, Anadenus altivagus, in fixed preparations. The following conclusions have been drawn.

1. The secretory granules, which are non-lipid in nature, are formed by direct transformation of the lipid granules. The lipid granules assume a duplex structure during this transformation.

2. The lipid granules, which are densely packed at the basal end of the cells, seem to arise from the tip-granules of the mitochondria.

3. The mitochondria are fibrillar and each of them shows one prominent granule at each tip. The mitochondria as well as their tip-granules are stainable with iron haematoxylin after Regaud, whereas the lipid granules are not.






© The Company of Biologists Ltd 1957