| Anoxybacillus calidus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Anoxybacillus, Anoxybacillus calidus
Cihan et al. 2014.
Synonym: "Paranoxybacillus calidus" (Cihan et al. 2014) Candia-Herrera et al. 2026
Species description is based on a single isolate.
Cihan et al. 2014.
Synonym: "Paranoxybacillus calidus" (Cihan et al. 2014) Candia-Herrera et al. 2026
Species description is based on a single isolate.
Gram-positive, straight rods, 0.5-0.7 x 4.0-13 µm. Motile. Produce subterminal or
terminal, ellipsoidal endospores in non-swollen sporangia.
terminal, ellipsoidal endospores in non-swollen sporangia.
Colonies grown on Nurient Agar for 2 days are regular in shape with round edges,
smooth, circular, cream-coloured and 1-2 mm in diameter. Grows at 35-70 ºC
(optimum, 55 ºC), at pH 6.5-9.0 (optimum of pH 8.0-8.5) and in 0-2.5% (w/v) NaCI
(optimum 0.5% NaCl). Facultatively anaerobic.
smooth, circular, cream-coloured and 1-2 mm in diameter. Grows at 35-70 ºC
(optimum, 55 ºC), at pH 6.5-9.0 (optimum of pH 8.0-8.5) and in 0-2.5% (w/v) NaCI
(optimum 0.5% NaCl). Facultatively anaerobic.
Isolated from a soil sample collected near Saraykoy-Buharkent thermal power plant located in Kizildere province of Denizli, Turkey.
Tolerates 5 to 70 mM boron. Susceptible to vancomycin, bacitracin, chloramphenicol, rifampicin, tetracycline, penicillin G, neomycin,
kanamycin and azithromycin. Resistant to novobiocin.
Tolerates 5 to 70 mM boron. Susceptible to vancomycin, bacitracin, chloramphenicol, rifampicin, tetracycline, penicillin G, neomycin,
kanamycin and azithromycin. Resistant to novobiocin.
Undetermined.
- Cihan AC, Cokmus C, Koc M, Ozcan B. Anoxybacillus calidus sp. nov., a thermophilic bacterium isolated from soil near a thermal
power plant. Int J Syst Evol Microbiol 2014; 64:211-219.
Positive results for amylase, methyl red test, oxidase, starch hydrolysis, acid production from: D-fructose, D-glucose (with gas
production), lactose, maltose, D-mannitol, ribose and sucrose.
Negative results for caseinase, catalase, citrate utilization, gelatinase, H2S production, indole production, lipase, nitrate reduction,
protease, tyrosine, urease, Voges-Proskauer reaction, acid production from: L-arabinose, D-galactose, D-mannose, raffinose, D-
sorbitol, trehalose and D-xylose.
production), lactose, maltose, D-mannitol, ribose and sucrose.
Negative results for caseinase, catalase, citrate utilization, gelatinase, H2S production, indole production, lipase, nitrate reduction,
protease, tyrosine, urease, Voges-Proskauer reaction, acid production from: L-arabinose, D-galactose, D-mannose, raffinose, D-
sorbitol, trehalose and D-xylose.
(c) Costin Stoica
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