Light and Electron Microscope Observations On Presporogonic and Sporogonic Stages of Sphaerospora Epinepheli (Myxosporea) In Grouper (Epinephelus Malabaricus) |
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| Authors: | KIDCHAKAN SUPAMATTAYA THERESIA FISCHER-SCHERL RUDOLF W HOFFMANN SIDTHI BOONYARATPALIN |
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| Institution: | Department of Aquatic Science, Faculty of Natural Resources, Prince of Songkla University, Hatyai, Songkla 90110, Thailand,;Institute of Zoology and Hydrobiology, University of Munich, W-8000 Munich 22, Germany;National Institute of Coastal Aquaculture, Department of Fisheries, Songkla 90000, Thailand |
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| Abstract: | ABSTRACT. Presporogonic (blood) stages of Sphaerospora epinepheli Supamattaya, Fischer-Scherl. Hoffmann, Boonyaratpalin, 1990 were observed in the circulating blood, sinus of kidney, glomerurar capillaries and liver arteries of grouper Epinephelus malabaricus. the earliest detectable stage was a primary cell with one secondary cell. After cell divisions, nine to 16 secondary cells were found in one primary cell. Ultrastructural examination revealed electron-dense bodies (118-145 nm) in the cytoplasm of primary cells. Sporogonic stages and spores were located in Bowman's space and in kidney tubule lumens. Electron micrographs revealed a similar pattern of spore development as described from other Sphaerospora spp. Kidneys infected with S. epinepheli showed highly vacuolated tubular epithelial cells and severely affected renal corpuscles. |
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| Keywords: | Blood stages pathology Sphaerosporidae ultrastructure |
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