title: Bacteroides pyogenes sp. nov., Bacteroides suis sp. nov., and Bacteroides helcogenes sp. nov., New Species from Abscesses and Feces of Pigs.
abstract: Bacteroides pyogenes, Bacteroides suis and Bacteriodes helcogenes, three new species isolated from abscesses and feces of pigs, are described. They are obligately anaerobic, Gram-negative, non-motile, non-pigment-forming, non-spore-forming rods that produce succinic and acetic acids (often with traces of propionic and isovaleric acids) in peptone-yeast-glucose medium and do not grow well in 20% bile. The newly described species are phenotypically similar to strains of B. ruminicola and B. oralis. However, the new species have a low level of DNA /DNA homology with B. ruminicola, B. oralis and related organisms and also with each other.
authors.affiliation: The Institute of Physical and Chemical Research, Wako-shi, Saitama 351, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Benno
authors.forename: J
authors.initials: J
authors.lastname: Watabe
authors.forename: T
authors.initials: T
authors.lastname: Mitsuoka