- International Journal of Systematic and Evolutionary Microbiology
- Volume 30, Issue 1
f Transfer of Haemophilus vaginalis Gardner and Dukes to a New Genus, Gardnerella: G. vaginalis (Gardner and Dukes) comb. nov.
- Authors: J. R. GREENWOOD, M. J. PICKETT
- First Published Online: 01 January 1980, International Journal of Systematic and Evolutionary Microbiology 30: 170-178, doi: 10.1099/00207713-30-1-170
- Subject: Original Papers Relating To Systematic Bacteriology
- Issue Published:
A taxonomic study of Haemophilus vaginalis Gardner and Dukes was undertaken to determine relationships between this organism and members of other genera. The methods utilized included Adansonian analysis, deoxyribonucleic acid (DNA)-DNA hybridizations, electron microscopy, and biochemical analysis of cell envelopes. By numerical analysis, all 78 clinical isolates and reference strains examined were related to each other at a similarity level exceeding 95%. No subspecies or biovars were observed. DNA-DNA hybridizations showed no genetic relationship between H. vaginalis and members of the genera Haemophilus, Pasteurella, and Streptococcus. Also, no relationship was observed between H. vaginalis and CDC DF-1. In the absence of existing genera with genetic features compatible with H. vaginalis, we propose the new genus Gardnerella for inclusion of organisms presently designated as either H. vaginalis or Corynebacterium vaginale. Gardnerella is defined to include catalase- and oxidase-negative, gram-negative to gram-variable bacteria with laminated cell walls which produce acetic acid as the major end product of fermentation. The type species of Gardnerella is G. vaginalis (Gardner and Dukes) comb. nov. Due to the unusual cell wall of this organism, this new genus is not presently assignable to a family.
© 1979, International Association of Microbiological Societies | Published by the Microbiology Society
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