0157630 - PAU-O 20033017 RIV GB eng J - Journal Article
Lom, Jiří - Nilsen, F.
Fish microsporidia: fine structural diversity and phylogeny.
International Journal for Parasitology. Roč. 33, č. 2 (2003), s. 107-127. ISSN 0020-7519. E-ISSN 1879-0135
Institutional research plan: CEZ:AV0Z6022909
Keywords : fish-infecting microsporidia * ultrastructure * small subunit rDNA analysis
Subject RIV: EG - Zoology
Impact factor: 2.881, year: 2003

Structural diversity of fish microsporidian life cycle stages and of the host-parasite interface is reviewed. In the infected cell of the fish host, microsporidia may either cause serious degradation of the cytoplasm and demise of the cell, or they may elicit host cell hypertrophy, producing a parasite-hypertrophic host cell complex, the xenoma. The structure of the xenoma and of its cell wall may differ according to the genus of the parasite, and seems to express properties of the parasite rather than those of the host. Except for the formation of conspicuous xenomas, there are no essentially different structures in fish-infecting microsporidia compared with microsporidia from other hosts. Although the structures associated with the development of fish microsporidia cannot be attributed importance in tracing the phylogeny, they are relevant for practical determination.Higher-level classification of Microsporidia is briefly discussed and structure and evolutionary rates in microsporidian rDNA are reviewed. Discussion of rDNA molecular phylogeny of fish-infecting microsporidia is followed by classification of these parasites.
Permanent Link: http://hdl.handle.net/11104/0055068