| Enterococcus bulliens |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Enterococcaceae, Genus Enterococcus, Enterococcus
bulliens Kadri et al. 2016.
bulliens Kadri et al. 2016.
Gram-positive, ovoid cells, 1.2-1.5 um in diameter, arranged in pairs or in short
chains. Non-motile. Non-spore-forming.
chains. Non-motile. Non-spore-forming.
Colonies are yellow pigmented, round with raised margins, smooth and convex.
Non-hemolytic on blood agar at 37 ºC. Produces L-lactic acid and acetic acid in the
ratio of 9.6:1. Grows on BHI agar and M17 agar at 37 ºC. Grows at 10, 28 and 37 ºC
but not at 45 ºC. Growth is observed at pH 4-9 and in the presence of 2-6.5% NaCl,
but not at 8 and 10% NaCl. Facultatively anaerobic.
Non-hemolytic on blood agar at 37 ºC. Produces L-lactic acid and acetic acid in the
ratio of 9.6:1. Grows on BHI agar and M17 agar at 37 ºC. Grows at 10, 28 and 37 ºC
but not at 45 ºC. Growth is observed at pH 4-9 and in the presence of 2-6.5% NaCl,
but not at 8 and 10% NaCl. Facultatively anaerobic.
Isolated from fresh dromedary camel milk produced in Dakhla, Morocco.
Undetermined. Lactic acid bacteria.
- Kadri Z, Spitaels F, Cnockaert M, Praet J, El Farricha O, Swings J, Vandamme P. Enterococcus bulliens sp. nov., a novel lactic acid
bacterium isolated from camel milk. Antonie Van Leeuwenhoek 2015; 108:1257-1265.
Description is based mostly on API 50 CHL, API 20 Strep and API ZYM results.
Positive results for acid phosphatase, arginine dihydrolase, esculin hydrolysis, alpha-galactosidase, hippurate hydrolysis, acid
production from amygdalin, arbutin, cellobiose, D-fructose, galactose, D-glucose, gentiobiose, lactose, D-maltose, D-mannose,
N-acetylglucosamine, ribose, raffinose, salicin, sucrose, and trehalose.
Negative results for catalase (reported as positive when grown on blood agar), alpha-chymotrypsin, cystine arylamidase,
alpha-fucosidase, leucine arylamidase, lipase (C14), alpha-mannosidase, oxidase, trypsin, valine arylamidase,
N-acetyl-beta-glucosaminidase, beta-glucuronidase, acid production from D- and L-arabinose, L-arabitol, adonitol, dulcitol, D- and
L-fucose, glycogen, glycerol, gluconate, 2- and 5-ketogluconate, inositol, inulin, D-lyxose, methyl-D-mannoside, L-rhamnose,
L-sorbose, D-sorbitol, starch, D-turanose, D-tagatose, methyl D-xyloside, xylitol, D- and L-xylose.
Variable results for alkaline phosphatase, esterase lipase (C8), esterase (C4), alpha- and beta-glucosidase, beta-galactosidase,
leucine aminopeptidase, phosphoamidase, pyrrolidonyl arylamidase, acid production from D-arabitol, methyl-D-glucoside,
D-mannitol, melezitose, and melibiose.
Positive results for acid phosphatase, arginine dihydrolase, esculin hydrolysis, alpha-galactosidase, hippurate hydrolysis, acid
production from amygdalin, arbutin, cellobiose, D-fructose, galactose, D-glucose, gentiobiose, lactose, D-maltose, D-mannose,
N-acetylglucosamine, ribose, raffinose, salicin, sucrose, and trehalose.
Negative results for catalase (reported as positive when grown on blood agar), alpha-chymotrypsin, cystine arylamidase,
alpha-fucosidase, leucine arylamidase, lipase (C14), alpha-mannosidase, oxidase, trypsin, valine arylamidase,
N-acetyl-beta-glucosaminidase, beta-glucuronidase, acid production from D- and L-arabinose, L-arabitol, adonitol, dulcitol, D- and
L-fucose, glycogen, glycerol, gluconate, 2- and 5-ketogluconate, inositol, inulin, D-lyxose, methyl-D-mannoside, L-rhamnose,
L-sorbose, D-sorbitol, starch, D-turanose, D-tagatose, methyl D-xyloside, xylitol, D- and L-xylose.
Variable results for alkaline phosphatase, esterase lipase (C8), esterase (C4), alpha- and beta-glucosidase, beta-galactosidase,
leucine aminopeptidase, phosphoamidase, pyrrolidonyl arylamidase, acid production from D-arabitol, methyl-D-glucoside,
D-mannitol, melezitose, and melibiose.
(c) Costin Stoica
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