INVESTIGATIONS ON BACTERIA WHICH GROW ON BENZYLPENICILLIN AS CARBON AND NITROGEN SOURCE

Abstract

The isolation and characterization of 7 strains of bacteria from various sources, which utilized benzylpenicillin as carbon and nitrogen sources are described. The isolates were all gram-negative rods with polar flagella exhibiting oxidative metabolism. Five isolates were identified as members of the group of fluorescent pseudomonads. During growth on benzylpenicillin, benzylpenicilloic acid and benzylpenilloic acid accumulated. 6-Aminopenicillanic acid was not demonstrated.