Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Campylobacter,
Campylobacter showae Etoh et al. 1993.
Gram-negative cells, small and straight, 0.5-0.8 x 2-5 μm, with rounded ends. Motile
by means of polar bundles of two to five flagella.
Colonies are translucent on blood agar base media. Optimal growth in anaerobic
conditions. Does not grow microaerobically on common agar bases in an
atmosphere without hydrogen. Does not grow in air, in a CO2 - enriched atmosphere,
or in an atmosphere containing O2/CO2/N2 (5:10:85) on common agar bases. Growth
is stimulated by formate and fumarate.
No growth at 25 or 42 ºC. Grows in the presence of 0.05% sodium fluoride, 2% NaCl,
but not in 1% glycine, KMnO4 , 2.0% ox-bile, 0,02% safranin, 0.04% triphenyl -
tetrazolium chloride or 64 mg/l cefoperazone.
Isolated from human dental plaque and from infected root canals.
- Don J. Brenner and J.J. Farmer III, 2001. Family I. Campylobacteraceae. In: Bergey’s Manual of Systematic Bacteriology, Second
edition,Vol 2, part C, George M. Garrity (Editor-in-Chief), pp 1145-1168.
- Yumiko Etoh, Floyd E. Dewhirst, Bruce J. Paster, Ayako Yamamoto, and Nobuichi Goto. Campylobacter showae sp. nov., Isolated
from the Human Oral Cavity. Int J Syst Bacteriol October 1993 43:631-639.
Positive results for catalase, selenite reduction, nitrate reduction.
Negative results for indoxyl acetate hydrolysis, oxidase, alkaline phosphatase, H2S production on TSI, urease & hippurate hydrolysis.
No carbohydrates fermentation.
(c) Costin Stoica