| Anoxybacillus karvacharensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Anoxybacillus, Anoxybacillus
karvacharensis Panosyan et al. 2021.
Species description is based on a single isolate.
karvacharensis Panosyan et al. 2021.
Species description is based on a single isolate.
Gram-positive, straight rods, 0.2-0.4 x 2.3-7.2 µm, occurring singly or in short chains.
Motile. Produce Subterminal ellipsoidal endospores.
Motile. Produce Subterminal ellipsoidal endospores.
Colonies are 2-3mm in diameter, cream-coloured, and regular in shape with round
edges. Moderately thermophilic and alkali-tolerant. Grows at 45-70 ºC (optimum,
60-65 ºC), at pH 6.0-11.0 (optimum of pH 8.0-9.0) and in 0-2.5% (w/v) NaCI. Can grow
on nutrient agar. Facultatively anaerobic.
edges. Moderately thermophilic and alkali-tolerant. Grows at 45-70 ºC (optimum,
60-65 ºC), at pH 6.0-11.0 (optimum of pH 8.0-9.0) and in 0-2.5% (w/v) NaCI. Can grow
on nutrient agar. Facultatively anaerobic.
Isolated from the Karvachar geothermal spring, Nagorno Karabakh.
Resistant to ciprofloxacin (5 µg), doxycycline (30 µg), erythromycin (15 µg), ampicillin (10 µg), kanamycin (30 µg), gentamycin (10 µg),
tetracycline (30 µg), streptomycin (10 µg), penicillin (6 µg), trimethoprim (5 µg), imipenem (10 µg), furadonin (300 µg), ceftriaxone (30
µg), cefoxitin (30 µg), amoxicillin/clavulanic acid (20/10 µg) and sulfamethoxazole (100µg).
Resistant to ciprofloxacin (5 µg), doxycycline (30 µg), erythromycin (15 µg), ampicillin (10 µg), kanamycin (30 µg), gentamycin (10 µg),
tetracycline (30 µg), streptomycin (10 µg), penicillin (6 µg), trimethoprim (5 µg), imipenem (10 µg), furadonin (300 µg), ceftriaxone (30
µg), cefoxitin (30 µg), amoxicillin/clavulanic acid (20/10 µg) and sulfamethoxazole (100µg).
Undetermined.
- Panosyan H, Margaryan A, Birkeland NK. Anoxybacillus karvacharensis sp. nov., a novel thermophilic bacterium isolated from the
Karvachar geothermal spring in Nagorno-Karabakh. Int J Syst Evol Microbiol 2021; 71:5035.
Positive results for caseinase, beta-galactosidase, gelatinase, nitrate reduction and starch hydrolysis.
Can utilize as sole carbon source: D-arabinose, D-ribose, D-galactose, D-fructose, D-mannitol, maltose, aesculin, melibiose,
sucrose, trehalose, raffinose, starch, glycogen, turanose, D-lyxose, D-tagatose, potassium gluconate and 2-keto-gluconate.
Negative results for arginine dihydrolase, H2S production, indole production, lysine decarboxylase, ornithine decarboxylase,
tryptophan deaminase, Tween 40 hydrolysis, urease and Voges-Proskauer reaction,
Can utilize as sole carbon source: D-arabinose, D-ribose, D-galactose, D-fructose, D-mannitol, maltose, aesculin, melibiose,
sucrose, trehalose, raffinose, starch, glycogen, turanose, D-lyxose, D-tagatose, potassium gluconate and 2-keto-gluconate.
Negative results for arginine dihydrolase, H2S production, indole production, lysine decarboxylase, ornithine decarboxylase,
tryptophan deaminase, Tween 40 hydrolysis, urease and Voges-Proskauer reaction,
(c) Costin Stoica
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