| Geobacillus uzenensis |
Taxonomy
Morphology
Growth conditions
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Geobacillus, Geobacillus uzenensis
Nazina et al. 2001.
Nazina et al. 2001.
Gram-positive rods, 0.9-1.0 x 1.3-1.7 μm. Gram-stain reaction may vary between
positive and negative. Motile by peritrichous flagella. Produce terminally located
ellipsoidal spores in non-swollen sporangia.
positive and negative. Motile by peritrichous flagella. Produce terminally located
ellipsoidal spores in non-swollen sporangia.
Colonies are round, mucous and colourless. Growth occurs at 37-75 ºC (optimum
55-60 ºC), at pH 6-8.5 (optimum pH is 6.2-7.5) and in 0-4% NaCl. Facultatively
anaerobic.
55-60 ºC), at pH 6-8.5 (optimum pH is 6.2-7.5) and in 0-4% NaCl. Facultatively
anaerobic.
Isolated from formation waters of high-temperature oilfields.
Unknown (none).
- Nazina TN, Tourova TP, Poltaraus AB, Novikova EV, Grigoryan AA, Ivanova AE, Lysenko AM, Petrunyaka VV, Osipov GA, Belyaev SS, et
al. Taxonomic study of aerobic thermophilic bacilli: descriptions of Geobacillus subterraneus gen. nov., sp. nov. and Geobacillus
uzenensis sp. nov. from petroleum reservoirs and transfer of Bacillus stearothermophilus, Bacillus thermocatenulatus, Bacillus
thermoleovorans, Bacillus kaustophilus, Bacillus thermodenitrificans to Geobacillus as the new combinations G.
stearothermophilus, G. th. Int J Syst Evol Microbiol 2001; 51:433-446. - Coorevits A, Dinsdale AE, Halket G, Lebbe L, De Vos P, Van Landschoot A, Logan NA. Taxonomic revision of the genus Geobacillus:
emendation of Geobacillus, G. stearothermophilus, G. jurassicus, G. toebii, G. thermodenitrificans and G. thermoglucosidans (nom.
corrig., formerly 'thermoglucosidasius'); transfer of Bacillus thermantarcticus to the genus as G. thermantarcticus comb. nov.;
proposal of Caldibacillus debilis gen. nov., comb. nov.; transfer of G. tepidamans to Anoxybacillus as A. tepidamans comb. nov.; and
proposal of Anoxybacillus caldiproteolyticus sp. nov. Int J Syst Evol Microbiol 2012; 62:1470-1485.
Positive results for aesculin hydrolysis, catalase, gelatinase, starch hydrolysis, acid production from: L-arabinose, arbutin (weak),
cellobiose, fructose, galactose, glycerol, glycogen, glucose, maltose, mannose, mannitol, methyl D-glucoside, ribose, salicin,
sucrose and trehalose.
Can utilize as carbon and energy sources: methane-naphthenic and naphthenic-aromatic oil, acetate, propionate, butyrate, pyruvate,
benzoate, phenylacetate, phenol, ethanol, butanol, malate, lactate, fumarate, succinate, peptone, tryptone, nutrient broth, potato agar
and yeast extract.
Negative results for caseinase, citrate utilization, egg-yolk lecithinase, H2S production, indole production, methyl red test, ONPG,
phenylalanine deamination, tyrosine degradation, urease, acid production from: adonitol, N-acetylglucosamine, amygdalin,
gentibiose, inositol, lactose, melibiose, melezitose, raffinose, rhamnose, sorbitol, turanose and D-xylose.
No utilization of formate.
Variable results for nitrate reduction and Voges-Proskauer reaction.
cellobiose, fructose, galactose, glycerol, glycogen, glucose, maltose, mannose, mannitol, methyl D-glucoside, ribose, salicin,
sucrose and trehalose.
Can utilize as carbon and energy sources: methane-naphthenic and naphthenic-aromatic oil, acetate, propionate, butyrate, pyruvate,
benzoate, phenylacetate, phenol, ethanol, butanol, malate, lactate, fumarate, succinate, peptone, tryptone, nutrient broth, potato agar
and yeast extract.
Negative results for caseinase, citrate utilization, egg-yolk lecithinase, H2S production, indole production, methyl red test, ONPG,
phenylalanine deamination, tyrosine degradation, urease, acid production from: adonitol, N-acetylglucosamine, amygdalin,
gentibiose, inositol, lactose, melibiose, melezitose, raffinose, rhamnose, sorbitol, turanose and D-xylose.
No utilization of formate.
Variable results for nitrate reduction and Voges-Proskauer reaction.
(c) Costin Stoica
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