| Enterobacter chuandaensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae,
Genus Enterobacter, Enterobacter chuandaensis Wu et al. 2019.
Species description is based on a single isolate.
Genus Enterobacter, Enterobacter chuandaensis Wu et al. 2019.
Species description is based on a single isolate.
Gram-negative rods. Motile. Non-spore-forming.
Colonies are circular, white, translucent, raised and smooth after 24 h of incubation at
35 ºC on nutrient agar. Growth occurs at 4-42 ºC with optimal growth at 35-37 ºC, but
not at 45 or 50 ºC. Grows in the presence of 0-8% (w/v) NaCl in tryptic soy broth.
Facultatively anaerobic.
35 ºC on nutrient agar. Growth occurs at 4-42 ºC with optimal growth at 35-37 ºC, but
not at 45 or 50 ºC. Grows in the presence of 0-8% (w/v) NaCl in tryptic soy broth.
Facultatively anaerobic.
Isolated from a human blood sample in China. Susceptible to amikacin, gentamicin, tobramycin, aztreonam, cefepime, cefotaxime,
cefpodoxime, ceftazidime, ceftizoxime, ceftriaxone, doripenem, ertapenem, imipenem, meropenem, piperacillin, piperacillin+tazobactam,
ticarcillin, ticarcillin+clavulanic acid, ciprofloxacin, levofloxacin, moxifloxacin, nalidixic acid, norfloxacin, tetracycline, tigecycline and
trimethoprim+sulfamethoxazole. Resistant to ampicillin, ampicillin+sulbactam, amoxicillin+clavulanic acid, cefazolin, cefotetan,
cefuroxime and cephalothin. Variable susceptibility to nitrofurantoin.
cefpodoxime, ceftazidime, ceftizoxime, ceftriaxone, doripenem, ertapenem, imipenem, meropenem, piperacillin, piperacillin+tazobactam,
ticarcillin, ticarcillin+clavulanic acid, ciprofloxacin, levofloxacin, moxifloxacin, nalidixic acid, norfloxacin, tetracycline, tigecycline and
trimethoprim+sulfamethoxazole. Resistant to ampicillin, ampicillin+sulbactam, amoxicillin+clavulanic acid, cefazolin, cefotetan,
cefuroxime and cephalothin. Variable susceptibility to nitrofurantoin.
Undetermined.
- Wu W, Wei L, Feng Y, Kang M, Zong Z. Enterobacter huaxiensis sp. nov. and Enterobacter chuandaensis sp. nov., recovered from
human blood. Int J Syst Evol Microbiol 2019; 69:708-714.
Positive results for arginine dihydrolase, catalase, citrate utilization, ONPG, Voges-Proskauer test, acid production from arbutin,
D-adonitol, L-arabinose, cellobiose, esculin, D-fructose, D-galactose, D-glucose, gentiobiose, gluconate, glycerol, lactose, maltose,
D-mannitol, D-mannose, methyl alpha-D-glucopyranoside, N-acetylglucosamine, raffinose, L-rhamnose, D-ribose, salicin, sucrose,
trehalose, and D-xylose.
Negative results for gelatinase, H2S production, indole production, lysine decarboxylase, ornithine decarboxylase, oxidase,
tryptophan deaminase, urease, acid production from amygdalin, D-arabitol, dulcitol, D-arabinose, erythritol, L-fucose, glycogen,
5-ketogluconate, inositol, inulin, melibiose, melezitose, methyl alpha-D-mannopyranoside, L-sorbose, starch, D-sorbitol, turanose,
methyl beta-D-xylopyranoside, L-xylose, and xylitol.
D-adonitol, L-arabinose, cellobiose, esculin, D-fructose, D-galactose, D-glucose, gentiobiose, gluconate, glycerol, lactose, maltose,
D-mannitol, D-mannose, methyl alpha-D-glucopyranoside, N-acetylglucosamine, raffinose, L-rhamnose, D-ribose, salicin, sucrose,
trehalose, and D-xylose.
Negative results for gelatinase, H2S production, indole production, lysine decarboxylase, ornithine decarboxylase, oxidase,
tryptophan deaminase, urease, acid production from amygdalin, D-arabitol, dulcitol, D-arabinose, erythritol, L-fucose, glycogen,
5-ketogluconate, inositol, inulin, melibiose, melezitose, methyl alpha-D-mannopyranoside, L-sorbose, starch, D-sorbitol, turanose,
methyl beta-D-xylopyranoside, L-xylose, and xylitol.
(c) Costin Stoica
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