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Electron-microscope studies of Fasciola hepatica II. The interrelationship of the parenchyma with other organ systems

Published online by Cambridge University Press:  06 April 2009

S. S. E. Gallagher  and
L. T. Threadgold
S. S. E. Gallagher
Affiliation:
Zoology Department, Queen's University, Belfast, N. Ireland
L. T. Threadgold
Affiliation:
Zoology Department, Queen's University, Belfast, N. Ireland
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Extract

The structural relationship between cells of the parenchyma and those of the alimentary and excretory systems, and tegument are described.

Junctional complexes are formed in areas of close cell apposition. They occur laterally on invaginations of parenchymal processes which are embedded in the epithelial cells of the alimentary and excretory systems, and on flat plaques between parenchymal cells and the tegument.

The ultrastructure of the complexes has been resolved and a three-dimensional interpretation is put forward. It is suggested that the complex is a type of desmosome.

The findings reported here add support to the suggestion made in a previous paper that the parenchyma may function as a transport system in this fluke.

We wish to acknowledge grants from the Wellcome Trust and the S.R.C. for the purchase of an Akashi TRS 50 and an A.E.I. EM 6B electron-microscope respectively. This research and that reported in a previous paper were carried out while one of us (S.S.E.G.) was in receipt of a Training Studentship Grant from the Wellcome Trust.

We also wish to thank Mr W. Ferguson and Mr A. Lyness for photographic and technical assistance.

Type
Research Article
Information
Parasitology , Volume 57 , Issue 4 , November 1967 , pp. 627 - 632
Copyright
Copyright © Cambridge University Press 1967

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References

REFERENCES

Kümmel, G. von. (1960). Feinstruktur der Wimperflamme in den Protonephridien. Protoplasma 51, 371–76.CrossRefGoogle Scholar
Loewenstein, W. R. & Kanno, Y. (1964). Studies on an epithelial (gland) cell junction. J. Cell Biol. 22, 565–86.CrossRefGoogle Scholar
Reger, J. F. (1965). The fine structure of neuro-muscular junctions and contact zones between body wall muscle cells of Ascaria lumbricoides, (var. suum). Z. Zellforsch. mikrosk. Anat. 67, 196–212.CrossRefGoogle Scholar
Threadgold, L. T. & Gallagher, S. S. E. (1966). Electron-microscope studies of Fasciola hepatica. i. The ultrastructure and interrelationship of the parenchymal cells. Parasitology 56, 299–304.CrossRefGoogle ScholarPubMed