| Enterobacter bugandensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae, Genus Enterobacter,
Enterobacter bugandensis Doijad et al. 2016.
Enterobacter bugandensis Doijad et al. 2016.
Gram-negative rods, 0.5 x 2.0-3.0 µm, occuring singly. Motile. Capsule is produced.
Colonies on Luria-Bertani agar after incubation for 24 h at 37 ºC, white, circular,
elevated, smooth. On MacConkey agar, colonies are circular (1-2 mm in diameter),
white, opaque and elevated with regular margin. The optimum growth temperature is
37 ºC and no growth is observed above 45 ºC. Can grow in 90 % (v/v) serum and can
tolerate up to 9 % (w/v) NaCl in nutrient broth. Facultatively anaerobic.
elevated, smooth. On MacConkey agar, colonies are circular (1-2 mm in diameter),
white, opaque and elevated with regular margin. The optimum growth temperature is
37 ºC and no growth is observed above 45 ºC. Can grow in 90 % (v/v) serum and can
tolerate up to 9 % (w/v) NaCl in nutrient broth. Facultatively anaerobic.
Isolated from a blood sample of a neonate in Mwanza, Tanzania. Sensitive to imipenem, meropenem and nitrofurantoin.
Resistant to ampicillin, amoxicillin/clavulanic acid, piperacillin/sulbactam, piperacillin-tazobactam, cefalotin, cefuroxime,
cefuroxime-axetil, cefoxitin, cefpodoxim, cefotaxim, ceftazidim, gentamicin, tobramicin, ciprofloxacin, norfloxacin, tetracyclin and
trimethoprim + sulphamethoxazol.
Resistant to ampicillin, amoxicillin/clavulanic acid, piperacillin/sulbactam, piperacillin-tazobactam, cefalotin, cefuroxime,
cefuroxime-axetil, cefoxitin, cefpodoxim, cefotaxim, ceftazidim, gentamicin, tobramicin, ciprofloxacin, norfloxacin, tetracyclin and
trimethoprim + sulphamethoxazol.
Undetermined.
- Doijad S, Imirzalioglu C, Yao Y, Pati NB, Falgenhauer L, Hain T, Foesel BU, Abt B, Overmann J, Mirambo MM, et al. Enterobacter
bugandensis sp. nov., isolated from neonatal blood. Int J Syst Evol Microbiol 2016; 66:968-974.
Description is based mostly on API 20 E and API 50 CH (Biomerieux) results.
Positive results for arginine dihydrolase, catalase, citrate utilization, ONPG, ornithine decarboxylase, nitrate reduction, tryptophan
deaminase, Voges-Proskauer test, acid production from amygdalin, L-arabinose, arbutin, cellobiose, dulcitol, esculin (weakly),
D-fructose, D-galactose, D-glucose, glycerol, gentibiose (weakly), metyl-alpha-D-glucopyranoside, lactose (48h), D-lyxose (48h),
D-mannose, D-mannitol, D-maltose, melibiose, D-sorbitol, L-rhamnose, D-raffinose, D-ribose, salicin (48h), saccharose, trehalose
(weakly), and D-xylose
Negative results for lysine decarboxylase, gelatinase, H2S production, indole production, methyl red test, oxidase, tryptophan
deaminase, urease, acid production from D-arabinose, D- and L-arabitol, D-adonitol, erythritol, D- and L-fucose, gluconate, 2- and
5-ketogluconate, inulin, melezitose, methyl alpha-D-mannopyranoside, N-acetylglucosamine, L-sorbose, starch, D-tagatose,
L-xylose, and methyl-beta-D-xylopyranoside.
Variable results for acid production from amygdalin, and inositol.
Species may be differentiated from Enterobacter cloacae by not fermenting methyl alpha-D-mannopyranoside and potassium
gluconate.
Positive results for arginine dihydrolase, catalase, citrate utilization, ONPG, ornithine decarboxylase, nitrate reduction, tryptophan
deaminase, Voges-Proskauer test, acid production from amygdalin, L-arabinose, arbutin, cellobiose, dulcitol, esculin (weakly),
D-fructose, D-galactose, D-glucose, glycerol, gentibiose (weakly), metyl-alpha-D-glucopyranoside, lactose (48h), D-lyxose (48h),
D-mannose, D-mannitol, D-maltose, melibiose, D-sorbitol, L-rhamnose, D-raffinose, D-ribose, salicin (48h), saccharose, trehalose
(weakly), and D-xylose
Negative results for lysine decarboxylase, gelatinase, H2S production, indole production, methyl red test, oxidase, tryptophan
deaminase, urease, acid production from D-arabinose, D- and L-arabitol, D-adonitol, erythritol, D- and L-fucose, gluconate, 2- and
5-ketogluconate, inulin, melezitose, methyl alpha-D-mannopyranoside, N-acetylglucosamine, L-sorbose, starch, D-tagatose,
L-xylose, and methyl-beta-D-xylopyranoside.
Variable results for acid production from amygdalin, and inositol.
Species may be differentiated from Enterobacter cloacae by not fermenting methyl alpha-D-mannopyranoside and potassium
gluconate.
(c) Costin Stoica
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