title: A thick-walled organism isolated from the cockroach gut by using a spent medium technique.
abstract: By using a conditioning technique whereby complex media are inoculated several times with bacteria from the hindgut of the cockroach Eublaberus posticus, a succession of bacterial types occurred. An obligately anaerobic, pleomorphic, thick-walled, gram-positive organism is described which was isolated by this culturing technique.
authors.affiliation: Department of Microbiology, University of Iowa, Iowa City, Iowa 52242.
authors.forename: D L
authors.initials: DL
authors.lastname: Cruden
authors.forename: A J
authors.initials: AJ
authors.lastname: Markovetz