| Enterobacter chuandaensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae, Genus Enterobacter,
Enterobacter chuandaensis Wu et al. 2019.
Species description is based on a single isolate.
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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