Light and electron microscopic descriptions of Sphaerospora coregoni El-Matbouli, Hoffmann and Kern, 1995 (Myxosporea: Sphaerosporidae) from the kidney of Whitefish (Coregonus lavaretus)

摘要: Summary Sphaerospora coregoni El-Matbouli, Hoffmann and Kern, 1995 is described from the kidney of Coregonus lavaretus obtained lake Constance two other Bavarian lakes. Out 80 fish (ranging in size 25–35 cm 200–250 g) twelve were found to be infected. The spores pseudoplasmodia occurred lumen tubules inside Bowman's capsules. earliest contained a primary cell secondary cells. All proved disporoblastic. Early containing 12 cells surrounded by which was amorphous, rounded measured 13.6 ± 0.8 μm diameter. Spores suturai view are prominent showing small protrusions at anterior posterior end. Length 8,2 (7.6 8.6 μm) their width including lateral valves' thickness 11.3 (10.5 12.4 μm). spherical polar capsules measure 1.9 (1.9 2.0 There no apparent effects on during sporogenic phase. However, infected renal corpuscles showed some dilatation glomerular capillaries space. Data ultrastructure sporogenesis presented.