Scanning and transmission electron microscopical observations on the tegument of excysted metacercariae and adults of Zygocotyle lunata

Scanning and transmission electron microscopical obervations were made on the tegument of excysted metacercariae and adults of the paramphistome. Zygocotyle lunata (Digenea: Trematoda). In accord with other paramphistomes studied, this species lacks spines and mitochondria in the tegumentary syncyti...

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Bibliographic Details
Published in:Journal of helminthology 1991-12, Vol.65 (4), p.270-274
Main Authors: Irwin, S. W. B., McCloughlin, T. J. J., Fried, B.
Format: Article
Language:English
Subjects:
adults
Animals
Biological and medical sciences
Birds
Fundamental and applied biological sciences. Psychology
Invertebrates
Mammals
metacercariae
Microscopy, Electron
Microscopy, Electron, Scanning
morphology
Morphology. Histology. Cytology
Nemathelminthia. Plathelmintha
Paramphistomatidae - ultrastructure
Research Papers
scanning electron microscopy
transmission electron microscopy
Trematoda
Trematode Infections - parasitology
Trematode Infections - veterinary
ultrastructure
Zygocotyle lunata
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Summary:Scanning and transmission electron microscopical obervations were made on the tegument of excysted metacercariae and adults of the paramphistome. Zygocotyle lunata (Digenea: Trematoda). In accord with other paramphistomes studied, this species lacks spines and mitochondria in the tegumentary syncytium and associated cytons. The newly excysted metacercarie, which possessed relatively few tegumental papillae, were cylindrical in comparison to adults which were distinctly flat. The adults had large numbers of tegumental papillae in the region of the oral sucker and acetabulum.
ISSN:0022-149X
1475-2697
DOI:10.1017/S0022149X00010841