title: Fine structure of frozen-etched spores of Thelohania bracteata emphasizing the formation of the polaroplast.
mesh_terms: D000818:Animals; D016782:Apicomplexa / Q000166:cytology*; D002462:Cell Membrane; D004175:Diptera; D004721:Endoplasmic Reticulum; D005613:Freeze Etching; D006056:Golgi Apparatus; D007814:Larva; D008854:Microscopy, Electron; D013170:Spores / Q000166:cytology