[Preliminary observations of two microsporidian hyperparasites of Acanthocephala in marine and lagoon fishes].
Microsporidium acanthocephali n. sp. and Microsporidium propinqui n. sp. are two microsporidian species hyperparasitic in the tegumentary syncytium of salt-water fishes. Their ultrastructural study shows that both species have diplocaryotic meronts and spores, anisofilar polar filaments; meronts and some sporogonic stages of M. acanthocephali are surrounded by a parasitic vacuole. Spores of both parasites are oviform; those of M. acanthocephali are gigantic, 12-14 micron long and 6-7 micron broad, those of M. propinqui are only 3-4 micron X 1.25-1.50 micron. A poor knowledge of some sporogonic aspects prevents us from all precise generic assigning of these two parasites which may coexist in the same Helminth.
Loubes
C
C
Laboratoire d'Ichthyologie et de Parasitologie générale, U.S.T.L., Montpellier, France.
Maurand
J
J
de Buron
I
I
D000049:Acanthocephala / Q000502:physiology*; D000818:Animals; D056890:Eukaryota / Q000145:classification / Q000502:physiology* / Q000648:ultrastructure; D005393:Fish Diseases / Q000469:parasitology*; D005399:Fishes; D006373:Helminthiasis / Q000469:parasitology; D006374:Helminthiasis, Animal; D008854:Microscopy, Electron; D011528:Protozoan Infections / Q000469:parasitology; D011529:Protozoan Infections, Animal; D012623:Seawater
Premières observations sur deux microsporidies hyperparasites d'acanthocéphales de poissons marins et lagunaires.