抄録
A method testing the activity of dimethylsulfoxide reductase of bacteria was described. Distribution of the enzyme within several groups of Entero-bacteriaceae was investigated. All Shigella strains were negative, whereas all Escherichia coli and Escherichia freundii strains were positive. Of four Proteus groups, only Proteus morganii showed negative reaction and other three Proteus species positive. Several strains of Salmonella were also tested and all of them were negative with the exception of Salmonella paratyphi B.
