title: Electron microscopic study of developmental stages of Rickettsiella phytoseiuli in Phytoseiulus persimilis Athias-Henriot (Gamasoidea:Phytoseiidae) mites.
abstract: Rickettsiella phytoseiuli was found in great amounts in all tissues except of the nervous system of adult Phytoseiulus persimilis mites. Six morphologically different stages (dense, intermediate, bacterial, giant, crystal-forming and small dark particles) of R. phytoseiuli were detected. No rickettsiae were seen in the larvae and in phase 1 and 2 nymphae of these mites.
mesh_terms: D000818:Animals; D005260:Female; D008297:Male; D008854:Microscopy, Electron; D008925:Mites / Q000254:growth & development / Q000382:microbiology* / Q000648:ultrastructure; D012287:Rickettsiaceae / Q000254:growth & development* / Q000302:isolation & purification / Q000648:ultrastructure