THE EFFECT OF DIHYDROSTREPTOMYCIN ON THE FORMATION OF BETA-GALACTOSIDASE BY ESCHERICHIA COLI

Publisher Website
Google Scholar
Abstract
In confirmation and extension of previous observations on the effect of dihydrostreptomycin on adaptive enzyme formation, it was observed that the formation of the enzyme β-galactosidase was inhibited by dihydrostreptomycin in a strain of Escherichia coli which could not multiply in the presence of this antibiotic. Formation of β-galactosidase was not inhibited in E. coli variants which could multiply in the presence of dihydrostreptomycin or which required the antibiotic for multiplication.