The occurrence of Sphaerospora renicola K-stages in the choroidal rete mirabile of the common carp
Language English Country Czech Republic Media print
Document type Journal Article
PubMed
8314174
Knihovny.cz E-resources
- MeSH
- Choroid Hemorrhage parasitology veterinary MeSH
- Choroid blood supply parasitology pathology MeSH
- Eukaryota growth & development MeSH
- Capillaries parasitology pathology MeSH
- Carps parasitology MeSH
- Necrosis parasitology veterinary MeSH
- Fish Diseases parasitology pathology MeSH
- Protozoan Infections, Animal * MeSH
- Protozoan Infections parasitology pathology MeSH
- Air Sacs parasitology pathology MeSH
- Inflammation parasitology pathology veterinary MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
It is known from earlier studies that the so-called K-protozoa, the late presporogonic stages of Sphaerospora renicola, a parasite causing renal sphaerosporosis in common carp (Cyprinus carpio), accumulate in the swimbladder wall and give rise to the disease called myxosporean swimbladder inflammation. The present study indicates that in the case of intensive infection these parasites also occur in the rete mirabile of the choroid of the eye, causing haemorrhages and necrosis. The results suggest that the K-stages of S. renicola are located in the blood path just like the early presporogonic C-stages; however, as they get stuck in organs rich in capillaries, it is difficult to demonstrate them from the blood of the common carp.