DNA-DNA Homology, Murein Types and Enzyme Patterns in the Type Strains of the Genus Bifidobacterium.

DNA-DNA homology and several phenotypical characteristics, such as murein (peptidoglycan) type and patterns of carbohydrate fermentation, and isoenzymes of L-lactate dehydrogenase and of transaldolase in the type strains of all species of the genus Bifidobacterium listed in the Approved Lists of Bacterial Names are determined. A key for identifying the different species, based on murein types, isoenzyme patterns and fermentation of pentoses, gluconate, maltose and melezitose is presented.