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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Betaproteobacteria, Order Burkholderiales, Family Burkholderiaceae, Genus
Hydromonas, Hydromonas duriensis Vaz et al. 2015, type species of the genus.
Species description is based on a single isolate.
Hydromonas, Hydromonas duriensis Vaz et al. 2015, type species of the genus.
Species description is based on a single isolate.
Gram-negative rods, 0.3-0.5 x 0.7-2.2 μm. Non-spore-forming.
Colonies are beige-coloured, 1 mm in diameter, convex and slightly dry on modified
Luria–Bertani agar after 48–72 h of incubation. Good growth occurs at 15–30 ºC
(optimum about 30 ºC), at pH 6–8 (optimum pH 8) and in the presence of up to 1%
(w/v) NaCl (optimum 0.1% (w/v) NaCl). Aerobic, poor growth under anaerobic
conditions in the presence of nitrate.
Luria–Bertani agar after 48–72 h of incubation. Good growth occurs at 15–30 ºC
(optimum about 30 ºC), at pH 6–8 (optimum pH 8) and in the presence of up to 1%
(w/v) NaCl (optimum 0.1% (w/v) NaCl). Aerobic, poor growth under anaerobic
conditions in the presence of nitrate.
Isolated from freshwater of the Douro river, in Porto, Portugal.
Undetermined.
- Vaz-Moreira, I., Narciso-Da-Rocha, C., De Brandt, E., Vandamme, P., Silva Ferreira, A. C., Lobo-Da-Cunha, A., Nunes, O. C. and
Manaia, C. M. 2015. Hydromonas duriensis gen. nov., sp. nov., isolated from freshwater. Int. J. Syst. Evol. Microbiol., 65, 4134-4139.
(c) Costin Stoica
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| R E G N U M PROKARYOTAE |
Description is based mostly on API 20NE, API 50 CH, API ZYM and API 20 E results.
Positive results for acid and alkaline phosphatase, catalase, esterase (C4), esterase lipase (C8), beta-galactosidase,
alpha-glucosidase, leucine arylamidase, nitrate reduction to nitrite (not to N2), oxidase, tryptophan deaminase,
naphthol-AS-BI-phosphohydrolase and valine arylamidase (weak reaction).
Can assimilate D-glucose, D-mannitol and N-acetylglucosamine.
Negative results for acetoin production, arginine dihydrolase, esculin hydrolysis, H2S production, gelatin hydrolysis, indole production,
Simmons citrate utilization, urease and acid production from glucose.
No assimilation of L-arabinose, mannose, maltose, gluconate, caprate, adipate, malate, citrate and phenylacetate.
No utilization in API 50 CH of D-galactose, D-fructose, D-mannose, L-sorbose, L-rhamnose, dulcitol, inositol, D-sorbitol, amygdalin,
arbutin, esculin, salicin, D-cellobiose, D-maltose, D-lactose, D-melibiose, D-sucrose, D-trehalose, inulin, D-melezitose, D-raffinose,
starch, glycogen, xylitol, gentiobiose, D-turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and L-arabitol, gluconate, 2- and 5-
ketogluconate, glycerol, erythritol, D- and L-arabinose, D-ribose, D-adonitol, D- and L-xylose.
Positive results for acid and alkaline phosphatase, catalase, esterase (C4), esterase lipase (C8), beta-galactosidase,
alpha-glucosidase, leucine arylamidase, nitrate reduction to nitrite (not to N2), oxidase, tryptophan deaminase,
naphthol-AS-BI-phosphohydrolase and valine arylamidase (weak reaction).
Can assimilate D-glucose, D-mannitol and N-acetylglucosamine.
Negative results for acetoin production, arginine dihydrolase, esculin hydrolysis, H2S production, gelatin hydrolysis, indole production,
Simmons citrate utilization, urease and acid production from glucose.
No assimilation of L-arabinose, mannose, maltose, gluconate, caprate, adipate, malate, citrate and phenylacetate.
No utilization in API 50 CH of D-galactose, D-fructose, D-mannose, L-sorbose, L-rhamnose, dulcitol, inositol, D-sorbitol, amygdalin,
arbutin, esculin, salicin, D-cellobiose, D-maltose, D-lactose, D-melibiose, D-sucrose, D-trehalose, inulin, D-melezitose, D-raffinose,
starch, glycogen, xylitol, gentiobiose, D-turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and L-arabitol, gluconate, 2- and 5-
ketogluconate, glycerol, erythritol, D- and L-arabinose, D-ribose, D-adonitol, D- and L-xylose.
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