Enterococcus casseliflavus
Cultural characteristics
Biochemical characters
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Enterococcaceae, Genus Enterococcus, Enterococcus casseliflavus  
(ex Vaughan et al. 1979) Collins et al. 1984.

Historical synonyms:
Streptococcus casseliflavus Vaughan et al. 1979, Streptococcus
faecium var. casseliflavus
Mundt and Graham 1968.
According to Naser et al. 2006,
Enterococcus flavescens Pompei et al. 1992 is a later
heterotypic synonym.
Gram-positive coccoid cells grouped usually in pairs or short chains. Motile.
Colonies on blood agar or nutrient agar are circular, smooth, and entire. Carotenoid
yellow pigment may be produced. Gray, punctate colonies on agar supplemented with
0.04% potassium tellurite.
Grow in 6.5% NaCl broth. Alpha-hemolytic on horse blood. Growth at pH 9.6 is
positive. Grow at 10 and 45 ºC.
Isolated from plants, silage, soil, food & human & veterianry clinical materials (feces). Can survive heating at 60 ºC for 30 min.
Unknown. Plant associated bacteria. Has been found to be a common inhabitant of the gut of garden snails.
  1. Collins, M. D., Jones, D., Farrow, J. A. E., Kilpper-Balz, R., Schleifer, K. H. 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 1984 34: 220-223.
  2. 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.
  3. Sabri M. Naser, Marc Vancanneyt, Bart Hoste, Cindy Snauwaert, Katrien Vandemeulebroecke, and Jean Swings. Reclassification
    of Enterococcus flavescens Pompei et al. 1992 as a later synonym of Enterococcus casseliflavus (ex Vaughan et al. 1979) Collins
    et al. 1984 and Enterococcus saccharominimus Vancanneyt et al. 2004 as a later synonym of Enterococcus italicus Fortina et al.
    2004. Int J Syst Evol Microbiol February 2006 56:413-416.
Positive results for hydrolysis of esculin, arginine dehydrolase, alpha-galactosidase, beta-galactosidase, acid production from: L-
arabinose, gluconate, inulin, melibiose, mannitol, sucrose, trehalose, N-acetylglucosamine, amygdalin, arbutin, cellobiose,
D-fructose, galactose, beta-gentiobiose, D-glucose, lactose, maltose, D-mannose, ribose, salicin & D-xylose. Acetylmethylcarbinol is

Negative results for hippurate hydrolysis, beta-glucuronidase, acid production from: adonitol, arabitol, dulcitol, glycerol, glycogen,
2-ketogluconate, 5-ketogluconate, D-arabinose, erythritol, D-fucose, L-fucose, inositol, alpha-methyl-xyloside, D-lyxose, melezitose,
alpha-methyl-D-glucoside, D-raffinose, sorbitol, L-sorbose, D-tagatose,  xylitol & L-xylose.

Variable results for acid production from: alpha-methyl-D-mannoside, rhamnose, starch, D-tagatose & D-turanose.
(c) Costin Stoica
Culture media
Biochemical tests
Previous page