| Enterobacter quasihormaechei & E. wuhouensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae,
Genus Enterobacter,
- Enterobacter quasihormaechei Wu et al. 2020;
- Enterobacter wuhouensis Wang et al. 2020.
Each species description is based on a single isolate.
Genus Enterobacter,
- Enterobacter quasihormaechei Wu et al. 2020;
- Enterobacter wuhouensis Wang et al. 2020.
Each species description is based on a single isolate.
Gram-negative rods. Motile. Non‐spore-forming.
Colonies are circular, white, 2 mm in diameter after 24 h of incubation at 35 ºC on
nutrient agar. Growth occurs at 4-40 ºC with optimal growth at 35 and 37 ºC, but not at
2, 42, 45 or 50 ºC. Growth occurs at pH 5.0-10.0, optimally at pH 6.0-7.0. Cells grows
in the presence of 0-9% (w/v) NaCl. Facultatively anaerobic.
nutrient agar. Growth occurs at 4-40 ºC with optimal growth at 35 and 37 ºC, but not at
2, 42, 45 or 50 ºC. Growth occurs at pH 5.0-10.0, optimally at pH 6.0-7.0. Cells grows
in the presence of 0-9% (w/v) NaCl. Facultatively anaerobic.
Isolated from human sputum, in China.
Undetermined.
- Wang C, Wu W, Wei L, Feng Y, Kang M, Xie Y, Zong Z. Enterobacter wuhouensis sp. nov. and Enterobacter quasihormaechei sp.
nov. recovered from human sputum. Int J Syst Evol Microbiol 2020; 70:874-881.
Positive results for arginine dihydrolase, catalase, citrate utilization, ONPG, ornithine decarboxylase, Voges-Proskauer test, acid
production from amygdalin, arbutin, L-arabinose, cellobiose, esculin, D-fructose, D-galactose, D-glucose, gentiobiose, glycerol,
gluconate (negative for E. wuhouensis), 2-ketogluconate, lactose, maltose, D-mannitol, D-mannose, melibiose, metyl
alpha-D-glucopyranoside, N-acetylglucosamine, raffinose, L-rhamnose, D-ribose, salicin, L-sorbitol, sucrose, trehalose, and
D-xylose.
Negative results for gelatin hydrolysis, H2S production, indole production, lysine decarboxylase, oxidase, deaminase, urease, acid
production from D-adonitol, D-arabitol, D-arabinose, L-fucose, dulcitol, erythritol, glycogen, 2-ketogluconate, inositol, inulin, D-lyxose,
melezitose, methyl alpha-D-mannopyranoside, L-sorbose, D-sorbitol, starch, turanose, methyl beta-D-xylopyranoside, L-xylose, and
xylitol.
production from amygdalin, arbutin, L-arabinose, cellobiose, esculin, D-fructose, D-galactose, D-glucose, gentiobiose, glycerol,
gluconate (negative for E. wuhouensis), 2-ketogluconate, lactose, maltose, D-mannitol, D-mannose, melibiose, metyl
alpha-D-glucopyranoside, N-acetylglucosamine, raffinose, L-rhamnose, D-ribose, salicin, L-sorbitol, sucrose, trehalose, and
D-xylose.
Negative results for gelatin hydrolysis, H2S production, indole production, lysine decarboxylase, oxidase, deaminase, urease, acid
production from D-adonitol, D-arabitol, D-arabinose, L-fucose, dulcitol, erythritol, glycogen, 2-ketogluconate, inositol, inulin, D-lyxose,
melezitose, methyl alpha-D-mannopyranoside, L-sorbose, D-sorbitol, starch, turanose, methyl beta-D-xylopyranoside, L-xylose, and
xylitol.
(c) Costin Stoica
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