Issue |
Parasite
Volume 7, Number 4, December 2000
|
|
---|---|---|
Page(s) | 323 - 326 | |
DOI | https://doi.org/10.1051/parasite/2000074323 | |
Published online | 02 September 2014 |
Note de recherche
A Dermocystidium infection in Trichomycterus sp. (Osteichthyes, Trichomycteridae)
Infection de Trichomycterus sp. (Osteichthyes, Trichomycteridae) par Dermocystidium
1
Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, 4099-002 Porto, Portugal.
2
Universidade Estadual de Londrina, BAV-CCB, Campus Universitário, 86051-990 Londrina, PR, Brasil, e-mail: ateresa@uel.br .
* Correspondence: J.C. Eiras. Tel.00.351.223401513 Fax:00.351.223401511. E-mail: jceiras@fc.up.pt
Received:
20
July
2000
Accepted:
21
August
2000
Two whitish elongate cysts in the left pectoral fin of Trichomycterus sp. (Osteichthyes, Trichomycteridae) were packed with Dermocystidium sp. spores. The spores were spherical and had a large PAS positive central refractile body, the cytoplasm being restricted to a narrow peripheral layer containing the nucleus. The cysts were surrounded by a thin homogeneous wall of parasite origin, and there was no encapsulation of the cysts by host tissue.
Résumé
Deux kystes blanchâtres et allongés, observés dans la nageoire pectorale gauche de Trichomycterus sp. (Osteichthyes, Trichomycteridae) sont pleins de spores de Dermocystidium sp. Les spores sont sphériques et ont un gros corps central, opaque et PAS positif. Le cytoplasme des spores est réduit à une mince couche périphérique contenant le noyau. Les kystes sont enveloppés par une paroi mince et homogène, d'origine parasitaire. Il n'y a pas d'encapsulation des kystes par les tissus de l'hôte.
Key words: Dermocystidium sp / Trichomycterus sp / fish / protozoa / Brazil
Mots clés : Dermocystidium sp / Trichomycterus sp / poissons / protozoaire / Bésil
© PRINCEPS Editions, Paris, 2000, transferred to Société Française de Parasitologie
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