Open AccessChemotaxonomic Analyses of Bacteroides gracilis and Bacteroides ureolyticus and Reclassification of B. gracilis as Campylobacter gracilis comb. nov.
Author(s) -
Peter Vandamme,
Mi Daneshvar,
Floyd E. Dewhirst,
Bj Paster,
Karel Kersters,
H. Goossens,
C W Moss
Publication year - 1995
Publication title -
international journal of systematic bacteriology
Language(s) - English
Resource type - Journals
eISSN - 1070-6259
pISSN - 0020-7713
DOI - 10.1099/00207713-45-1-145
Subject(s) - incertae sedis , biology , campylobacter , microbiology and biotechnology , bacteroides , taxon , bacteria , botany , genetics
The cellular fatty acids, respiratory quinones, and proteins of the generically misnamed taxa Bacteroides gracilis and Bacteroides ureolyticus were analyzed and compared with the corresponding chemotaxonomic features of their closest relatives, the campylobacters. Our results and previously published data for genotypic and phenotypic characteristics were used in a polyphasic approach to reconsider the classification of these organisms. We transfer B. gracilis to the genus Campylobacter as Campylobacter gracilis comb. nov. B. ureolyticus can be considered a campylobacter on genotypic grounds; in contrast, the proteolytic metabolism and fatty acid components of this taxon exclude it from the genus Campylobacter. We prefer to consider this taxon a species incertae sedis pending the isolation and characterization of additional B. ureolyticus-like bacteria.