A Sulphate-reducing Bacterium containing Cytochrome c3 but lacking Desulfoviridin

Abstract
A sulfate-reducing bacterium (strain Norway-4) previously assigned to the species Desulfovibrio desulfuricans has now been found to contain cytochrome-c3 but not desulfoviridin. The organism resembles strains of D. desulfuricans which contain both pigments, in its morphology, nutrition, metabolism and hydrogenase activity. It is considered to be a mutant which has lost desulfoviridin. This work has not revealed the function of desulfoviridin,.