Gametogony of Sarcocystis sp. in cell culture.

Sexual stages and cystlike bodies of Sarcocystis sp., a protozoan parasite found in muscles of reptiles, birds, and mammals, including man, developed in cell culture. Motile organisms, obtained from leg muscles of wild grackles, were inoculated into cell line cultures of embryonic bovine kidney. Mature micro-and macrogametes and the cystlike forms were found 30 and 42 hours after inoculation respectively. These observations indicate that the parasite is probably a coccidium.