Document Detail


Virus-like particles in a monogenean (Platyhelminthes) parasitic in a marine fish.
MedLine Citation:
PMID:  8468138     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In Microcotyle sp., a gill parasite in the marine fish Abudefduf analogus near Dakar, Senegal, various organs were studied by transmission electron microscopy. One of the six worms studied contained virus-like particles located only in the outer layer and in the cytons (deep cell bodies) of the tegument. The tegument ultrastructure is described for both healthy and infected monogeneans. The outer layer of the tegument, 2-5 microns thick, does not have microvilli. The virus-like particles are cytoplasmic, about 70 nm in diameter with a single-layered capsid-like structure 10-12 nm thick, and have an icosahedral symmetry. They originate from viroplasms and accumulate in paracrystalline arrays up to 1 micron in size. By their ultrastructural characteristics, these virus-like particles are related to the Reoviridae or, more probably, the Birnaviridae. This is the third report of viruses in monogeneans, and the first in a polyopisthocotylean monogenean. It is hypothesized that monogeneans could act as vectors of viral diseases among their host fishes.
Authors:
J L Justine; J R Bonami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal for parasitology     Volume:  23     ISSN:  0020-7519     ISO Abbreviation:  Int. J. Parasitol.     Publication Date:  1993 Feb 
Date Detail:
Created Date:  1993-05-11     Completed Date:  1993-05-11     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0314024     Medline TA:  Int J Parasitol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  69-75     Citation Subset:  IM    
Affiliation:
Laboratoire de Biologie Parasitaire, Protistologie, Helminthologie, URA 114 CNRS, Muséum national d'histoire naturelle, Paris, France.
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MeSH Terms
Descriptor/Qualifier:
Animals
Gills / parasitology
Inclusion Bodies, Viral / ultrastructure*
Perciformes / parasitology*
Platyhelminths / microbiology*

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