| Enterococcus cecorum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Enterococcaceae, Enterococcus, Enterococcus cecorum
(Devriese et al. 1983) Williams et al. 1989.
Historical synonym: Streptococcus cecorum Devriese et al. 1983.
(Devriese et al. 1983) Williams et al. 1989.
Historical synonym: Streptococcus cecorum Devriese et al. 1983.
Gram-positive 1 to 1.3 µm in diameter, grouped in pairs, short chains, or small groups.
Nonmotile, nonspore-forming.
Nonmotile, nonspore-forming.
Colonies are circular, entire edges, low convex, partially translucent, not pigmented
and reach 1 to 2 mm in diameter after 20 hours and 2 to 3 mm after 2 days at 37 ºC in
CO2 in air. Growth is slower and less abundant in air. The strains show good growth
anaerobically in an H2-CO2 atmosphere. Uniform turbidity with a small deposit is
formed in brain heart infusion broth and Todd-Hewitt broth. Alpha-hemolytic on sheep
blood agar.
Good growth occurs at 45 ºC, but no growth occurs at 10 ºC. No growth in in 6.5%
NaCl, on Slanetz–Bartley medium and kanamycin esculin azide agar. Growth at pH
9.6 is slower and less abundant than growth at pH 7.0. Slight inhibition by 40% bile.
and reach 1 to 2 mm in diameter after 20 hours and 2 to 3 mm after 2 days at 37 ºC in
CO2 in air. Growth is slower and less abundant in air. The strains show good growth
anaerobically in an H2-CO2 atmosphere. Uniform turbidity with a small deposit is
formed in brain heart infusion broth and Todd-Hewitt broth. Alpha-hemolytic on sheep
blood agar.
Good growth occurs at 45 ºC, but no growth occurs at 10 ºC. No growth in in 6.5%
NaCl, on Slanetz–Bartley medium and kanamycin esculin azide agar. Growth at pH
9.6 is slower and less abundant than growth at pH 7.0. Slight inhibition by 40% bile.
Isolated from the ceca of chickens. Cannot survive heating at 60 ºC for 30 min.
The cecal strains were non-pathogenic in chickens experimental infections.
- Devriese, L. A., Dutta, G. N., Farrow, J. A. E., Van De Kerckhove, A., Phillips, B. A. Streptococcus cecorum, a New Species Isolated
from Chickens. Int J Syst Bacteriol 1983 33: 772-776. - Validation of the Publication of New Names and New Combinations Previously Effectively Published Outside the IJSB: List No. 31.
Int J Syst Bacteriol 1989 39: 495-497. - Pavel Švec and Luc A. Devriese, 2009: Genus I. Enterococcus (ex Thiercelin and Jouhaud 1903) Schleifer and Kilpper-Bälz 1984,
32VP in Bergey’s Manual of Systematic Bacteriology, Second Edition, Volume Three, Vos, P.D.; Garrity, G.; Jones, D.; Krieg, N.R.;
Ludwig, W.; Rainey, F.A.; Schleifer, K.-H.; Whitman, W.B. (Eds.), pp 594-606.
Positive results for alkaline phosphatase, esculin hydrolysis, leucine arylaminidase, beta-glucuronidase, Voges-Proskauer, acid
production from: N-acetylglucosamine, amygdalin, arbutin, cellobiose, fructose, galactose, glucose, beta-gentiobiose, inulin, lactose,
maltose, mannose, melezitose, melibiose, raffinose, ribose, salicin, sucrose and trehalose. Gas is not formed from glucose.
Negative results for gelatinase, tyrosinase, acid production from adonitol, arabinose, arabitol, dulcitol, erythritol, fucose,
alpha-methyl-D-glucoside, glycerol, inositol, lyxose, mannitol, alpha-methyl-D-mannoside, L-rhamnose, sorbitol, L-sorbose,
turanose, xylitol, xylose, or beta-methyl-xyloside.
Variable results for hydrolysis of starch, alpha- and beta-galactosidase.
production from: N-acetylglucosamine, amygdalin, arbutin, cellobiose, fructose, galactose, glucose, beta-gentiobiose, inulin, lactose,
maltose, mannose, melezitose, melibiose, raffinose, ribose, salicin, sucrose and trehalose. Gas is not formed from glucose.
Negative results for gelatinase, tyrosinase, acid production from adonitol, arabinose, arabitol, dulcitol, erythritol, fucose,
alpha-methyl-D-glucoside, glycerol, inositol, lyxose, mannitol, alpha-methyl-D-mannoside, L-rhamnose, sorbitol, L-sorbose,
turanose, xylitol, xylose, or beta-methyl-xyloside.
Variable results for hydrolysis of starch, alpha- and beta-galactosidase.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
| Back |