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The Classification of Bacteroides melaninogenicus and Related Species
Author(s) -
HOLBROOK W. P.,
DUERDEN B. I.,
DEACON A. G.
Publication year - 1977
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1977.tb00691.x
Subject(s) - microbiology and biotechnology , bacteroides , biology , chemistry , food science , bacteria , genetics
One hundred and seventy‐five strains of Bacteroides melaninogenicus , 17 strains of B. oralis and six strains of B. ochraceus were studied in a series of biochemical, chemical tolerance and antibiotic disc resistance tests and by the gas‐liquid chromatographic analysis of the acid end products of metabolism. Strains of B. melaninogenicus ss. asaccharolyticus formed a distinct group with clear differences from other B. melaninogenicus strains. B. melaninogenicus ss. intermedius strains formed a homogeneous group that could be readily identified. B. ochraceus was distinguished from other Bacteroides spp. by its ability to grow in air enriched with CO 2 . Bacteriodes melaninogenicus ss. melaninogenicus and B. oralis gave very similar patterns of results with the tests used and invariably were indistinguishable; the capacity to produce black‐pigmented colonies on blood‐containing media may not be a valid criterion for dividing these similar strains into two species.