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Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Enterococcaceae, Genus Enterococcus, Enterococcus silesiacus  
Svec et al. 2006.
Gram-positive ovoid cocci, grouped in pairs, short chains or small groups. Nonmotile.
Colonies on sheep blood agar are nonpigmented, shiny, circular, smooth with entire
margins, 1 mm in diameter after 24 h of cultivation at 37 ºC.
Growth occurs in BHI broth at 10 ºC, no growth occurs at 45 ºC and is weak in
the presence of 6.5% NaCl and at pH 9.6. Poor growth on Slanetz–Bartley medium
containing 0.04% sodium azide, producing small dark-red colonies.
Isolated from a drinking water filter, in Silesia.
Unknown.
  1. 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.
  2. Pavel Svec, Marc Vancanneyt, Ivo Sedlacek, Sabri M. Naser, Cindy Snauwaert, Karen Lefebvre, Bart Hoste, and Jean Swings.
    Enterococcus silesiacus sp. nov. and Enterococcus termitis sp. nov. Int J Syst Evol Microbiol March 2006 56:577-581.
  3. Shewmaker Patricia Lynn; Steigerwalt Arnold G.; Nicholson Ainsley C.; et al. Reevaluation of the Taxonomic Status of Recently
    Described Species of Enterococcus: Evidence that E. thailandicus Is a Senior Subjective Synonym of "E. sanguinicola" and
    Confirmation of E. caccae as a Species Distinct from E. silesiacus . JOURNAL OF CLINICAL MICROBIOLOGY Volume: 49 Issue: 7
    Pages: 2676-2679.
Positive results for arginine dihydrolase, pyrrolidonyl arylamidase, Voges–Proskauer
test, leucine aminopeptidase, beta-galactosidase, aesculin hydrolysis, acid production
from: glycerol, D-ribose, D-xylose, D-galactose, D-glucose, D-fructose, D-mannose,
N-acetylglucosamine, amygdalin, arbutin, salicin, D-cellobiose, D-maltose, D-lactose, D-trehalose & gentiobiose.

Negative results for alkaline phosphatase, alpha-galactosidase, beta-glucuronidase, hippurate hydrolysis, acid production from: D- or
L-arabitol, D-arabinose, D- or L-fucose, L-xylose, D-adonitol, erythritol, methyl beta-D-xylopyranoside, L-sorbose, L-rhamnose,
dulcitol, inositol, D-mannitol, D-sorbitol, methyl alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, D-melibiose, sucrose,
inulin, D-melezitose, D-raffinose, starch, glycogen, xylitol, D-turanose, D-lyxose, D-tagatose, 2- or 5-ketogluconate.
Enterococcus silesiacus
(c) Costin Stoica
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