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XII.—Electron Microscopy of the Epithelial Cells of the Mid-gut and Hepatic Cæca of Blatta Orientalis

Published online by Cambridge University Press:  11 June 2012

L. T. Threadgold  and
R. A. R. Gresson
L. T. Threadgold
Affiliation:
Department of Zoology, The Queen's University of Belfast, Northern Ireland
R. A. R. Gresson
Affiliation:
Department of Zoology, The Queen's University of Belfast, Northern Ireland
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Synopsis

Electron micrographs of the anterior part of the mid-gut and hepatic cæca of Blatta orientalis Linn, show epithelial cells in both secretory and absorptive cycles. The epithelial cells possess microvilli and their lateral margins are provided with irregularly shaped projections that interdigitate with neighbouring cells. Vacuole-like structures were observed in association with the mitochondria of absorptive and degenerating cells. These vacuoles, it is suggested, represent degeneration products. Bundles of saccules and associated groups of vacuoles and vesicles represent the Golgi rods and granules of light microscopy. Epithelial cells engaged in absorption differ from those in which the elaboration of secretion is taking place, in the arrangement of the Golgi saccules and vacuoles, in the size of the Golgi vacuoles, in the distribution of the mitochondria, and in the possession of a less extensive endoplasmic reticulum.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 68 , Issue 2 , 1961 , pp. 162 - 170
Copyright
Copyright © Royal Society of Edinburgh 1961

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