title: [Strain of screening high toxin--producing from Corynebacterium diphtheria PW8-weissensee].
abstract: Corynebacterium diphtheria PW8-weissensee was grown on different media for screening high toxin produce. Through six times of screening (selecting butyrous brilliant smooth small colonies and testing their toxin production capacity) from original strain producing toxin 160 Lf/ml, a high toxin--producing descendand culture was obtained, which produced 79% more toxin than the original strain did.
authors.affiliation: National Vaccine and Serum Institute Beijing, Bingjing 100024.
authors.forename: F
authors.initials: F
authors.lastname: Rong
authors.forename: Y
authors.initials: Y
authors.lastname: Xue
authors.forename: J
authors.initials: J
authors.lastname: Sun
mesh_terms: D003353:Corynebacterium diphtheriae / Q000254:growth & development* / Q000378:metabolism; D003470:Culture Media; D004167:Diphtheria Toxin / Q000096:biosynthesis*
chemical_list: D003470:Culture Media; D004167:Diphtheria Toxin