Document Detail

Light and scanning electron microscopy of the miracidium of Echinostoma paraensei (Trematoda, Echinostomatidae).
MedLine Citation:
PMID:  15135866     Owner:  NLM     Status:  MEDLINE    
Echinostoma paraensei was described 1967 by Lie and Basch. Recently its natural definitive host, the aquatic rodent Nectomys squamipes, endemic in Brazil, was identified. As most of the echinostomatids, this species presents a zoonotic potential. The morphology and topography of the E. paraensei miracidium obtained from adult worms collected from the natural definitive host N. squamipes is described by light and electron microscopy. The arrangement and the dimensions of the epidermal plates are given. The eyespots are composed by two pairs of lenses measuring 6.03 microm. SEM observations shows that the miracidium body is covered by cilia except at the terebratorium region and the presence of alpha-tubulin in the cilia of the larvae is first recorded by immunelabeling. Nineteen papilla-like structures arranged in three axes and four groups were observed at the terebratoriun, this structure is retractable, presenting folds and a corrugated surface with profiles of cytoplasmic expansions, forming network of anatomizing folds.
Jairo Pinheiro; Arnaldo Maldonado; Reinalda Marisa Lanfredi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Veterinary parasitology     Volume:  121     ISSN:  0304-4017     ISO Abbreviation:  Vet. Parasitol.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-05-11     Completed Date:  2004-08-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7602745     Medline TA:  Vet Parasitol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  265-75     Citation Subset:  IM    
Departmento de Ciências Fisiológicas, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Brazil.
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MeSH Terms
Fluorescent Antibody Technique
Larva / metabolism,  ultrastructure
Microscopy, Confocal
Microscopy, Electron, Scanning
Microscopy, Video
Rodentia / parasitology*
Trematoda / metabolism,  ultrastructure*
Tubulin / metabolism
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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