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

Autor: E. M. Skorobrekhova
Rok vydání: 2009
Předmět:
Zdroj: Russian Journal of Marine Biology. 35:178-182
ISSN: 1608-3377
1063-0740
DOI: 10.1134/s1063074009020102
Popis: 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.
Databáze: OpenAIRE
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