Encapsulation of the metacercariae of two species of trematodes in the skin and musculature of the stone cockscomb Alectrias alectrolophus (Pallas, 1814)

Encapsulation of the metacercariae of two species of trematodes in the skin and musculature of... The structure of the coating surrounding the metacercaria of Cryptocotyle lingua in the skin and the metacercaria of Liliatrema skrjabini in the muscles of the stone cockscomb was studied. Metacercariae of these trematodes were surrounded by a cyst adjacent to the helminth and by a capsule. In both species, the cyst consisted of electron- dense homogeneous material, which was probably synthesized by the parasite. The capsules were formed from host tissues; in C. lingua, they mostly consisted of ordered layers of collagen fibers and in L. skrjabini they were formed from fibroblasts and, presumably, phagocytes. The differences in capsule structure of the studied metacercariae may be related to the physiological features of surrounding tissues or to the taxonomic attribution of the trematodes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Encapsulation of the metacercariae of two species of trematodes in the skin and musculature of the stone cockscomb Alectrias alectrolophus (Pallas, 1814)

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074009020102
Publisher site
See Article on Publisher Site

Abstract

The structure of the coating surrounding the metacercaria of Cryptocotyle lingua in the skin and the metacercaria of Liliatrema skrjabini in the muscles of the stone cockscomb was studied. Metacercariae of these trematodes were surrounded by a cyst adjacent to the helminth and by a capsule. In both species, the cyst consisted of electron- dense homogeneous material, which was probably synthesized by the parasite. The capsules were formed from host tissues; in C. lingua, they mostly consisted of ordered layers of collagen fibers and in L. skrjabini they were formed from fibroblasts and, presumably, phagocytes. The differences in capsule structure of the studied metacercariae may be related to the physiological features of surrounding tissues or to the taxonomic attribution of the trematodes.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: May 10, 2009

References

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