investigation of the properties of antibiotic-resistant variants obtained experimentally from various species of brucella indicated that benzylpenicillin , ampicillin and ceporin induced significant changes in the main properties of brucella , i.e . phagolysability , agglutinability , production of brucellacin and hydrogen sulfate , attitude to dyes .
C0030827
benzylpenicillin
C0002680
ampicillin