Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Enterococcaceae => Enterococcus => Enterococcus haemoperoxidus Svec et al. 2001
(decompose hydrogen peroxide into oxygen and water on blood-agar media)
Lancefield group D.
(decompose hydrogen peroxide into oxygen and water on blood-agar media)
Lancefield group D.
Gram-positive, elongated cocci, grouped in pairs, short chains or small groups.
Non-motile.
Non-motile.
Colonies are circular and smooth with entire margins, 1 mm in diameter after 24 h of
cultivation and up to 3-4 mm after 5 days. A slightly yellowish pigment may be
produced. No hemolysis on sheep-blood agar.
Uniform turbidity produced in BHI broth culture at 37 °C.
Optimum temperature 37 °C, grow at 10 °C but not at 45°C. Facultatively anaerobic.
Growth enhanced slightly by cultivation in a 5% CO2 atmosphere. Grow in 6.5% NaCl.
cultivation and up to 3-4 mm after 5 days. A slightly yellowish pigment may be
produced. No hemolysis on sheep-blood agar.
Uniform turbidity produced in BHI broth culture at 37 °C.
Optimum temperature 37 °C, grow at 10 °C but not at 45°C. Facultatively anaerobic.
Growth enhanced slightly by cultivation in a 5% CO2 atmosphere. Grow in 6.5% NaCl.
Isolated from non-potable water.
Unknown.
- Pavel Svec 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. - P Svec, L A Devriese, I Sedl√°cek, M Baele, M Vancanneyt, F Haesebrouck, J Swings, and J Doskar. Enterococcus
haemoperoxidus sp. nov. and Enterococcus moraviensis sp. nov., isolated from water. Int J Syst Evol Microbiol July 2001 51:
1567-74.
Catalase reaction is positive when cultivated on blood agar and negative when is
cultivated on media without blood.
Positive results for acetoin production, hippurate hydrolysis, aesculin hydrolysis, pyrrolidonyl arylamidase, leucine
arylamidase, arginine dihydrolase, acid production from: glycerol, ribose, galactose, D-glucose, D-fructose, D-mannose, methyl
alpha-D-glucoside, N-acetylglucosamine, amygdalin, arbutin, salicin, cellobiose, maltose, lactose, sucrose, trehalose, melezitose,
beta-gentiobiose & maltotriose.
Negative results for beta-glucuronidase, beta-galactosidase, alkaline phosphatase, urease, acid production from: erythritol, D- or
L-arabinose, D- or L-xylose, adonitol, methyl beta-xyloside, L-sorbose, rhamnose, dulcitol, inositol, sorbitol, methyl
alpha-D-mannoside, melibiose, inulin, D-raffinose, xylitol, D-lyxose, D-tagatose, D- or L-fucose, D- or L-arabitol, gluconate, 2- &
5-ketogluconate.
Variable results for acid production from: starch, glycogen, D-turanose & mannitol.
cultivated on media without blood.
Positive results for acetoin production, hippurate hydrolysis, aesculin hydrolysis, pyrrolidonyl arylamidase, leucine
arylamidase, arginine dihydrolase, acid production from: glycerol, ribose, galactose, D-glucose, D-fructose, D-mannose, methyl
alpha-D-glucoside, N-acetylglucosamine, amygdalin, arbutin, salicin, cellobiose, maltose, lactose, sucrose, trehalose, melezitose,
beta-gentiobiose & maltotriose.
Negative results for beta-glucuronidase, beta-galactosidase, alkaline phosphatase, urease, acid production from: erythritol, D- or
L-arabinose, D- or L-xylose, adonitol, methyl beta-xyloside, L-sorbose, rhamnose, dulcitol, inositol, sorbitol, methyl
alpha-D-mannoside, melibiose, inulin, D-raffinose, xylitol, D-lyxose, D-tagatose, D- or L-fucose, D- or L-arabitol, gluconate, 2- &
5-ketogluconate.
Variable results for acid production from: starch, glycogen, D-turanose & mannitol.
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