| Geobacillus jurassicus |
Taxonomy
Morphology
Growth conditions
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Geobacillus, Geobacillus jurassicus
Nazina et al. 2005.
Nazina et al. 2005.
Gram-positive rods. Motile by peritrichous flagella. Spores are ellipsoidal, located
terminally, in slightly swollen sporangia
terminally, in slightly swollen sporangia
The colonies grown on nutrient agar are round, mucous, colourless, and have a
diameter of about 2 mm. Can grow at temperatures between 45 and 65 ºC (optimum
58-60 ºC), at pH range 6.4-7.8 (5-9 in Coorevits' paper)(optimum 7.0-7.2) and from 0
to 5-5.5% (w/v) NaCl. Can grow in nutrient broth and on potato agar. Cannot grow on
methanol, propanol, butanol, isobutanol, phenol, phenylacetate, alanine, glutamate,
serine, formate, propionate, and Simmons citrate agar. Poor growth is observed on
asparagine and glutamine.Aerobic and chemoorganotrophic.
diameter of about 2 mm. Can grow at temperatures between 45 and 65 ºC (optimum
58-60 ºC), at pH range 6.4-7.8 (5-9 in Coorevits' paper)(optimum 7.0-7.2) and from 0
to 5-5.5% (w/v) NaCl. Can grow in nutrient broth and on potato agar. Cannot grow on
methanol, propanol, butanol, isobutanol, phenol, phenylacetate, alanine, glutamate,
serine, formate, propionate, and Simmons citrate agar. Poor growth is observed on
asparagine and glutamine.Aerobic and chemoorganotrophic.
Isolated from soil, the formation water of the high-temperature oilfield.
Unknown (none).
- Nazina TN, Sokolova DSh, Grigoryan AA, Shestakova NM, Mikhailova EM, Poltaraus AB, Tourova TP, Lysenko AM, Osipov GA, Belyaev
SS. Geobacillus jurassicus sp. nov., a new thermophilic bacterium isolated from a high-temperature petroleum reservoir, and the
validation of the Geobacillus species. Syst Appl Microbiol 2005; 28:43-53. - 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 catalase, aesculin hydrolysis, gelatinase, ONPG, oxidase, starch hydrolysis, NH3 production from peptone, acid
production from: L-arabinose, cellobiose, fructose, galactose, glycerol, glucose, maltose, mannose, mannitol, melezitose, methyl
D-glucoside, ribose, sucrose, trehalose, turanose and D-xylose.
Can utilize as carbon source: methane-naphthenic oil, acetate, butyrate, pyruvate, lactate, benzoate, fumarate, succinate, malate,
ethanol, peptone, tryptone, and yeast extract.
Negative results for egg-yolk lecithinase, H2S production, indole production, dihydroxyacetone production, methyl red test,
phenylalanine deamination, tyrosine degradation, urease, Voges-Proskauer test, acid production from N-acetylglucosamine,
amygdalin, arbutin, adonitol, gentibiose, glycogen, inositol, lactose, melibiose, raffinose, rhamnose, sorbitol, sorbose and xylose.
Variable results for caseinase and nitrate reduction.
production from: L-arabinose, cellobiose, fructose, galactose, glycerol, glucose, maltose, mannose, mannitol, melezitose, methyl
D-glucoside, ribose, sucrose, trehalose, turanose and D-xylose.
Can utilize as carbon source: methane-naphthenic oil, acetate, butyrate, pyruvate, lactate, benzoate, fumarate, succinate, malate,
ethanol, peptone, tryptone, and yeast extract.
Negative results for egg-yolk lecithinase, H2S production, indole production, dihydroxyacetone production, methyl red test,
phenylalanine deamination, tyrosine degradation, urease, Voges-Proskauer test, acid production from N-acetylglucosamine,
amygdalin, arbutin, adonitol, gentibiose, glycogen, inositol, lactose, melibiose, raffinose, rhamnose, sorbitol, sorbose and xylose.
Variable results for caseinase and nitrate reduction.
(c) Costin Stoica
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