Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Enterococcaceae => Enterococcus => Enterococcus durans (ex Sherman and Wing 1937)
Collins et al. 1984.
Lancefield group D.
Later synonym: Streptococcus durans (ex Sherman and Wing 1937) Knight et al. 1984.
Collins et al. 1984.
Lancefield group D.
Later synonym: Streptococcus durans (ex Sherman and Wing 1937) Knight et al. 1984.
Gram positive, ovoid, elongated cells grouped in pairs or short chains. Non-motile.
Colonies on blood agar or nutrient agar are circular, smooth, and entire.
Non-pigmented. Alpha-, sometimes beta-hemolytic (on horse blood media).
Amino acids and B vitamins are required for growth in synthetic media. Grows on
0.1% methylene blue milk. No growth in media containing 0.04% tellurite and 0.01%
tetrazolium. Grow at 10 °C but not at 45 °C. Grow in the presence of 6.5% NaCl.
Non-pigmented. Alpha-, sometimes beta-hemolytic (on horse blood media).
Amino acids and B vitamins are required for growth in synthetic media. Grows on
0.1% methylene blue milk. No growth in media containing 0.04% tellurite and 0.01%
tetrazolium. Grow at 10 °C but not at 45 °C. Grow in the presence of 6.5% NaCl.
Isolated from milk, dairy products, meat products and contaminated water.
Unknown (none).
- 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. - M. D. Collins, D. Jones, J. A. E. Farrow, R. Kilpper-Balz, and K. H. Schleifer. Enterococcus avium nom. rev., comb. nov.; E.
casseliflavus nom. rev., comb. nov.; E. durans nom. rev., comb. nov.; E. gallinarum comb. nov.; and E. malodoratus sp. nov. Int J
Syst Bacteriol April 1984 34:220-223. - L.A. Devriese, M. Vancanneyt, P. Descheemaeker, M. Baele1, H.W. Van Landuyt, B. Gordts, P. Butaye, J. Swings, F.
Haesebrouck. Differentiation and identification of Enterococcus durans, E. hirae and E. villorum. Journal of Applied Microbiology
Volume 92, Issue 5, pages 821–827, May 2002. - D A Singer, E M Jochimsen, P Gielerak and W R Jarvis. Pseudo-outbreak of Enterococcus durans infections and colonization
associated with introduction of an automated identification system software update. J. Clin. Microbiol. November 1996 vol. 34
no. 11 2685-2687.
E. durans is phenotypically very close to E. faecium.
Positive results for Voges–Proskauer test, hydrolysis of esculin, pyrrolidonylarylamidase, arginine dihydrolase, acid production from:
ribose, lactose, trehalose,amygdalin, arbutin, fructose, glucose, melibiose & mannose.
Negative results for catalase, oxidase, alpha-galactosidase, beta-glucuronidase, beta-galactosidase, acid production from: mannitol,
sorbitol, inulin, arabinose, rhamnose & xylose.
Variable results for hydrolysis of hippurate beta-galactosidase, acid production from: raffinose & sucrose.
Positive results for Voges–Proskauer test, hydrolysis of esculin, pyrrolidonylarylamidase, arginine dihydrolase, acid production from:
ribose, lactose, trehalose,amygdalin, arbutin, fructose, glucose, melibiose & mannose.
Negative results for catalase, oxidase, alpha-galactosidase, beta-glucuronidase, beta-galactosidase, acid production from: mannitol,
sorbitol, inulin, arabinose, rhamnose & xylose.
Variable results for hydrolysis of hippurate beta-galactosidase, acid production from: raffinose & sucrose.
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