Ultrastructure of the body wall of Cystidicoloides ephemeridarum (Nematoda, Cystidicolidae) in relation to the histopathology of this nematode in salmonids
1.
SYSNO ASEP
0157620
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Ultrastructure of the body wall of Cystidicoloides ephemeridarum (Nematoda, Cystidicolidae) in relation to the histopathology of this nematode in salmonids
Author(s)
Frantová, Denisa (PAU-O) Moravec, František (PAU-O)
Source Title
Parasitology Research. - : Springer
- ISSN 0932-0113
Roč. 91, č. 2 (2003), s. 100-108
Number of pages
9 s.
Language
eng - English
Country
DE - Germany
Keywords
Nematoda ; ultrastructure
Subject RIV
EA - Cell Biology
R&D Projects
KJB6022305 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ
AV0Z6022909 - PAU-O, BC-A
Annotation
The body wall of adult Cystidicoloides ephemeridarum is composed of a cuticle, a hypodermis and longitudinally oriented somatic musculature. The body cuticle is composed of a trilaminated epicuticle, an outer and inner cortical zone, a median zone with globular bodies and a basal zone consisting of three subzones. The only specialized attachment devices of C. ephemeridarum are the flexible overlapping margins of the annuli which are elongated in the first third of the body. Together with the sucking pressure of the oesophagus, they seem to play a role in the penetration and mechanical damage of the host's tissue. Up to 300 worms were present in the bolus of food consumed by the host, or attached by their head ends in the lamina epithelialis, which resulted in localized disruptions of the mucosal epithelium with no inflammation. Infection with C. ephemeridarum seems to be a temporary, season-dependent event of mild pathogenicity.
