Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Betaproteobacteria, Order Burkholderiales, Family Alcaligenaceae, Genus Caenimicrobium,
Caenimicrobium hargitense Felfoldi et al. 2017, type species of the genus.
Species description is based on a single isolate.
Caenimicrobium hargitense Felfoldi et al. 2017, type species of the genus.
Species description is based on a single isolate.
Gram-negative, short rods, 0.6-0.8 x 1.1-2.2 µm. Non-motile.
Colonies on nutrient medium are beige-coloured, circular and raised with a diameter
of 2-3 mm. Growth occurs at pH 7-11 and 0-8% NaCl concentration. Temperature
range for growth 4-65 ºC. Aerobic.
of 2-3 mm. Growth occurs at pH 7-11 and 0-8% NaCl concentration. Temperature
range for growth 4-65 ºC. Aerobic.
Isolated from activated sludge from Harghita, Romania.
Undetermined
- Felfoldi, T., Schumann, P., Mentes, A., Keki, Z., Mathe, I. and Toth, E. M. 2017. Caenimicrobium hargitense gen. nov., sp. nov., a
new member of the family Alcaligenaceae (Betaproteobacteria) isolated from activated sludge. Int. J. Syst. Evol. Microbiol., 67, 627-
632.
Positive results for alkaline phosphatase (weakly), catalase, esterase lipase (C8) (weakly) esterase (C4), leucine arylamidase,
naphthol-AS-BI-phosphohydrolase, nitrate reduction and oxidase.
Negative results for acid phosphatase, cystine arylamidase, alpha-fucosidase, lipase (C14), alpha- and beta-galactosidase,
beta-glucuronidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, alpha-mannosidase, starch hydrolysis, trypsin,
alpha-chymotrypsin, urease, valine arylamidase, acid production from D-glucose.
No assimilation of: erythritol, D- and L-arabinose, D-ribose, D- and L-xylose, D-adonitol, methyl beta-D-xylopyranoside, D-galactose,
D-glucose, D-fructose, D-mannose, L-sorbose, L-rhamnose, dulcitol, inositol, D-mannitol, D-sorbitol, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, N-acetylglucosamine, salicin, cellobiose, lactose, melibiose, sucrose,
trehalose, inulin, melezitose, raffinose, starch, glycogen, xylitol, gentiobiose, turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and
L-arabitol, gluconate, 2- and 5-ketogluconate, glycerol, amygdalin, arbutin, esculin (none of the carbon sources in the API 50 CH test
are assimilated).
naphthol-AS-BI-phosphohydrolase, nitrate reduction and oxidase.
Negative results for acid phosphatase, cystine arylamidase, alpha-fucosidase, lipase (C14), alpha- and beta-galactosidase,
beta-glucuronidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, alpha-mannosidase, starch hydrolysis, trypsin,
alpha-chymotrypsin, urease, valine arylamidase, acid production from D-glucose.
No assimilation of: erythritol, D- and L-arabinose, D-ribose, D- and L-xylose, D-adonitol, methyl beta-D-xylopyranoside, D-galactose,
D-glucose, D-fructose, D-mannose, L-sorbose, L-rhamnose, dulcitol, inositol, D-mannitol, D-sorbitol, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, N-acetylglucosamine, salicin, cellobiose, lactose, melibiose, sucrose,
trehalose, inulin, melezitose, raffinose, starch, glycogen, xylitol, gentiobiose, turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and
L-arabitol, gluconate, 2- and 5-ketogluconate, glycerol, amygdalin, arbutin, esculin (none of the carbon sources in the API 50 CH test
are assimilated).
(c) Costin Stoica
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