Ultrastructural characteristics of the uterine epithelium of aspidogastrean and digenean trematodes

0364799 - BC 2012 RIV PL eng J - Journal Article
Poddubnaya, L. G. - Levron, Céline - Gibson, D. I.
Ultrastructural characteristics of the uterine epithelium of aspidogastrean and digenean trematodes.
Acta Parasitologica. Roč. 56, č. 2 (2011), 131-139. ISSN 1230-2821. E-ISSN 1896-1851
R&D Projects: GA ČR GP524/07/P039; GA MŠMT LC522
Institutional research plan: CEZ:AV0Z60220518
Keywords : Aspidogastrea * Digenea * Aspidogaster limacoides * Phyllodistomum angulatum * Azygia lucii * ultrastructure * uterus * septate junctions
Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine
Impact factor: 0.789, year: 2011

The ultrastructure of the uterus proper of the aspidogastrean Aspidogaster limacoides Diesing, 1835 and two digenean species, Phyllodistomum angulatum Linstow, 1907 (Plagiorchiida, Gorgoderidae) and Azygia lucii (Muller, 1776) (Strigeida, Azygiidae), was examined by TEM. Despite the marked similarity in the ultrastructural pattern of the aspidogastrean and two digeneans studied, there is some degree of variation in the secretory activity of their uterine epithelium. The high level of vesicular exocytotic activity in the epithelial cytoplasm of A. lucii may be associated with differences in egg emission and the subsequent life cycle involving a non-ciliated, non-swimming and non-free-living miracidium, as opposed to the free-swimming miracidium of P. angulatum. The similar nature of the uterine epithelium in all three species studied represents an ultrastructural marker possibly supporting a close phylogenetic relationship between the Aspidogastrea and the Digenea.
Permanent Link: http://hdl.handle.net/11104/0200183