0157610 - PAU-O 20023037 RIV DE eng J - Journal Article
Lom, Jiří - Dyková, Iva
Ultrastructure of Nucleospora secunda n. sp. (Microsporidia), parasite of enterocytes of Nothobranchius rubripinnis.
European Journal of Protistology. Roč. 38, č. 1 (2002), s. 19-27. ISSN 0932-4739. E-ISSN 1618-0429
R&D Projects: GA ČR GA524/98/0589
Institutional research plan: CEZ:AV0Z6022909
Keywords : Nucleospora secunda * Microsporidia * ultrastructure
Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine
Impact factor: 0.779, year: 2002

A new intranuclear microsporidium, Nucleospora secunda n.sp., infecting intestinal epithelial cells of Nothobranchius rubripinnis Seegers, 1986, is described. Developmental stages and spores are isolated from one another in the karyoplasm. Merogony proceeds from simple uninucleate meronts to multinucleate meronts. Transformation into sporogonial plasmodia is marked by the appearance of ellipsoidal dark bodies, comparable to polar tube precursors, which later coalesce to form the turns of the polar tube. Ellipsoidal mature spores are of average size 1.6 +- 0.8 .mu.m and have 4 to 5 turns of the polar tube.The polaroplast consists of an outer region of closely spaced lamellae, enclosing a region of widely spaced lamellae or loose flat cisternae. Tubular inclusions appear in the karyoplasm of infected nuclei.
Permanent Link: http://hdl.handle.net/11104/0055048