| Hydrogenibacillus schlegelii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Bacillus, Hydrogenibacillus schlegelii
(Schenk and Aragno 1981) Kämpfer et al. 2013.
Synonym: Bacillus schlegelii Schenk and Aragno 1981.
(Schenk and Aragno 1981) Kämpfer et al. 2013.
Synonym: Bacillus schlegelii Schenk and Aragno 1981.
Gram-variable, motile rods, 0.6 x 2.5-5.0 µm. Produce terminal, spherical spores,
which swell the sporangia. No poly-beta-hydroxybutyrate production.
which swell the sporangia. No poly-beta-hydroxybutyrate production.
Colonies are cream, circular or spreading. Facultatively chemolithoautotrophic,
autotrophic with H2 + CO2 or CO. Aerobic. Termophilic. Hydrogenase activity is strongly
thermophilic, with a temperature optimum between 70 and 75 ºC. Good growth is,
however, also observed at 55 ºC. No growth at 37 or 80 ºC. Growth occurs at pH
4.2-7.5 (optimum pH 6-7). Grow in 0-3% NaCl. Alantoin or urate are not required for
growth. No growth in the presence of 1% glycine.
autotrophic with H2 + CO2 or CO. Aerobic. Termophilic. Hydrogenase activity is strongly
thermophilic, with a temperature optimum between 70 and 75 ºC. Good growth is,
however, also observed at 55 ºC. No growth at 37 or 80 ºC. Growth occurs at pH
4.2-7.5 (optimum pH 6-7). Grow in 0-3% NaCl. Alantoin or urate are not required for
growth. No growth in the presence of 1% glycine.
Isolated from lake sediment, geothermal soils and sugar factory sludge.
Minimum inhibitory penicillin G concentration is 0.005 U/ml.
Minimum inhibitory penicillin G concentration is 0.005 U/ml.
Undetermined.
- N.A. Logan and P. De Vos, 2009. Genus I. Bacillus Cohn 1872. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.A.
Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes, Springer, 21-127. - Kampfer P, Glaeser SP, Busse HJ. Transfer of Bacillus schlegelii to a novel genus and proposal of Hydrogenibacillus schlegelii
gen. nov., comb. nov. Int J Syst Evol Microbiol 2013; 63:1723-1727. - Schenk A, Aragno M. Bacillus schlegelii a new species of thermophilic, facultatively chemolithoautotrophic bacterium oxidizing
molecular hydrogen. J. Gen. Microbiol. 1979; 115:333-341.
Positive results for oxidase (weak), catalase, nitrate reduction and hydrolysis of casein (weakly).
Can utilize as carbon and energy sources: acetate, butyrate, caproate, fumarate, DL-beta-hydroxybutyrate, L-malate, propionate,
pyruvate, succinate, valerate, L-alanine, L-cysteine, L-glutamate, L-phenylalanine, L-proline, phenol and 1-propanol.
Negative results for H2S production, indole production, hydrolysis of urea, hydrolysis of gelatin, egg yolk reaction, hydrolysis of starch,
Voges-Proskauer test, citrate utilization, acid production from: L-arabinose, D-glucose, D-mannitol and D-xylose.
Carbohydrates are not metabolized.
No utilization of: benzoate, citrate, formate, gluconate, glycollate, p-hydroxybenzoate, alpha-ketoglutarate, DL-lactate, malonate,
mesaconate, D( -)-tartrate, L( +)-tartrate, meso-tartrate, L-arginine, L-asparagine, L-aspartate, L-citrulline, L-glutamine, glycine,
L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-ornithine, L-serine, L-tryptophan, L-valine, L-arabinose, cellobiose,
D-fructose, D-galactose, D-glucose, D-maltose, D-mannose, L-rhamnose, saccharose, L-sorbose, trehalose, D-xylose, 1 -butanol,
ethanol, glycerol, mannitol and methanol.
Can utilize as carbon and energy sources: acetate, butyrate, caproate, fumarate, DL-beta-hydroxybutyrate, L-malate, propionate,
pyruvate, succinate, valerate, L-alanine, L-cysteine, L-glutamate, L-phenylalanine, L-proline, phenol and 1-propanol.
Negative results for H2S production, indole production, hydrolysis of urea, hydrolysis of gelatin, egg yolk reaction, hydrolysis of starch,
Voges-Proskauer test, citrate utilization, acid production from: L-arabinose, D-glucose, D-mannitol and D-xylose.
Carbohydrates are not metabolized.
No utilization of: benzoate, citrate, formate, gluconate, glycollate, p-hydroxybenzoate, alpha-ketoglutarate, DL-lactate, malonate,
mesaconate, D( -)-tartrate, L( +)-tartrate, meso-tartrate, L-arginine, L-asparagine, L-aspartate, L-citrulline, L-glutamine, glycine,
L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-ornithine, L-serine, L-tryptophan, L-valine, L-arabinose, cellobiose,
D-fructose, D-galactose, D-glucose, D-maltose, D-mannose, L-rhamnose, saccharose, L-sorbose, trehalose, D-xylose, 1 -butanol,
ethanol, glycerol, mannitol and methanol.
(c) Costin Stoica
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