title: In vitro excystation and structure of Sarcocystis suicanis Erber, 1977, sporocysts.
abstract: Methods previously described for artificially excysting coccidia were applied to oocysts and sporocysts of Sarcocystis suicanis recovered from the intestinal mucosa of experimentally infected dogs. Observations with a scanning electron microscope showed that sporocysts consisted of 4 plates, each with a series of accessory veinations; plate margins joined at obtuse angles; plates separated at their margins and curled inward, allowing the sporozoites to escape. Transmission electron microscopy suggested that the sporocyst wall is ultrastructurally similar to that of other coccidia.
mesh_terms: D000818:Animals; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D010274:Parasitology / Q000379:methods; D012522:Sarcocystis / Q000302:isolation & purification / Q000502:physiology / Q000648:ultrastructure*