Oxidation-reduction studies in relation to bacterial growth

Abstract

THE determination of the most positive level of oxidation-reduction (O/R) potential at which spores of B. tetani can germinate has been previously attempted by one of us [Fildes, 1929]. Clark's O/R dyes were used to measure the potential of the culture media to which the spores were added. With the technique then available there was great difficulty, fintly in deter- mining the degree of reduction of the dyes, and secondly in maintaining a constant potential level while the spores were "trying to germinate." Poising