Scanning electron microscopy on proliferative forms of Toxoplasma gondii and Sarcocystis species |
Yung-bai Kang |
Veterinary Research Institute, Rural Development Administration |
Toxoplasma gondii와 Sarcocystis 원충(原蟲)의 증식형(增殖型)에 대(對)한 주사전자현미경적(走査電子顯微鏡的) 관찰(觀察) |
강영배 |
농촌진흥청 가축위생연구소 |
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Abstract |
For the comparison of surface fine structures in the proliferative forms of two major protoroan parasites, Toxoplasma gondii and Sarcocystis species in mammalian hosts, isolated from the artificially infected mice and from the naturally infected cattle, respectively, an SEM(Hitachi S-570) was applied to the fixed, dried and coated with gold ion on the microslide glasses. The tachyzoites of T gondii from the peritoneal cavity of the mouse showed the crescent-like feature and measured as $5.57{mu}m$ in length and $2.33{mu}m$ in width, while the bradyzoites of Sarcocystis species from the heart muscle of slaughtered cattle was banana-shaped and measured as $14.18{mu}m$ in length and $2.85{mu}m$ in width. On the surface of Sarcocystis species bradyzoite, a distinct elliptical micropore was identified in the high magnification observation of 60,000X, and it measured as $0.35{mu}m$ in length and $0.18{mu}m$ in width. |
Key Words:
Toxoplasma gondii, Sarcocystis species, SEM, proliferative form, mice, cattle |
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