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Ultrastructure of the digestive system of adult Sanguinicola inermis

Published online by Cambridge University Press:  05 June 2009

D.F. McMichael-Phillips ,
J.W. Lewis  and
M.C. Thorndyke
D.F. McMichael-Phillips
Affiliation:
Department of Biology, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
J.W. Lewis
Affiliation:
Department of Biology, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
M.C. Thorndyke
Affiliation:
Department of Biology, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
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Abstract

The alimentary tract of adult Sanguinicola inermis Plehn, 1905 (Digenea: Sanguinicolidae) was studied by transmission electron microscopy. A highly developed muscular region, likely to be a modified sucker, is present anteriorly to the oesophagus. The tegumental oesophagus, on the basis of the characteristics of the surface cytoplasm, is differentiated into anterior, median and posterior regions with the apical cytoplasm of the median oesophagus drawn into extracellular vesicles from which arise surface knobs. The oesophagus leads to a cellular intestine composed of a single layer of epithelial cells. The apical surface of the intestine is drawn into short luminal projections and the intestinal cells contain numerous organelles and secretory granules. No host cells or cell debris were evident within the alimentary tract, although the intestinal lumen was filled with electron-dense material.

Type
Research Papers
Information
Journal of Helminthology , Volume 68 , Issue 2 , June 1994 , pp. 149 - 154
Copyright
Copyright © Cambridge University Press 1994

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