title: Detection of "lost" plasmids from Escherichia coli using excess ampicillin.
authors.affiliation: Department of Zoology, University of Guelph, Ontario, Canada.
authors.forename: A D
authors.initials: AD
authors.lastname: Wright
authors.forename: T J
authors.initials: TJ
authors.lastname: Crease
mesh_terms: D000668:Ampicillin Resistance; D004305:Dose-Response Relationship, Drug; D004926:Escherichia coli; D010957:Plasmids / Q000302:isolation & purification*