| Alkalihalobacillus alcalophilus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Alkalihalobacillus, Alkalihalobacillus
alcalophilus (Vedder 1934) Patel and Gupta 2020.
Synonym: Bacillus alcalophilus Vedder 1934.
alcalophilus (Vedder 1934) Patel and Gupta 2020.
Synonym: Bacillus alcalophilus Vedder 1934.
Gram-positive, motile rods, 0.5-0.7 / 3.0-5.0 µm, presenting subterminal, ellipsoidal
endospores in unswollen sporangia.
endospores in unswollen sporangia.
Colonies are white, circular, smooth and shiny, sometimes with a darker center.
Aerobe, no anaerobic growth. Alkaliphilic, optimum pH 9, range 8-10. NaCl is not
required for growth (NaCl tolerance is 2-8%). Growth temperature 15-40 ºC, optimum
30-33 ºC.
Aerobe, no anaerobic growth. Alkaliphilic, optimum pH 9, range 8-10. NaCl is not
required for growth (NaCl tolerance is 2-8%). Growth temperature 15-40 ºC, optimum
30-33 ºC.
Isolated from a variety of materials after enrichment at pH 10.
Sensitive to vancomycin, clarithromycin, aztreonam, minocycline, lincomycin, chloramphenicol and streptomycin. Resistant to
neomycin, ampicillin, kanamycin, rifampicin, tetracycline and gentamycin.
Sensitive to vancomycin, clarithromycin, aztreonam, minocycline, lincomycin, chloramphenicol and streptomycin. Resistant to
neomycin, ampicillin, kanamycin, rifampicin, tetracycline and gentamycin.
Unknown.
- 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. - Vedder A.: Bacillus alcalophilus n. sp.; benevens enkele ervaringen met sterk alcalische voedingsbodems. Antonie van
Leeuwenhoek Journal of Microbiology and Serology, 1934, 1, 141-147. - Patel S, Gupta RS. A phylogenomic and comparative genomic framework for resolving the polyphyly of the genus Bacillus:
Proposal for six new genera of Bacillus species, Peribacillus gen. nov., Cytobacillus gen. nov., Mesobacillus gen. nov.,
Neobacillus gen. nov., Metabacillus gen. nov. and Alkalihalobacillus gen. nov. Int J Syst Evol Microbiol 2020; 70:406-438. - Lei RF, Ma Q, Li YQ, Abudourousuli D, Wang S, Rouzi Z, Aosiman M, An DD, Li WJ. Bacillus suaedae sp. nov., isolated from the
stem of Suaeda aralocaspica in north-west China. Int J Syst Evol Microbiol 2022; 72:5362.
Positive results for caseinase, catalase, alpha-chymotrypsin, gelatinase, beta-galactosidase, leucine arylamidase, starch hydrolysis,
hydrolysis of Tween 40 and 60, acid production from: N-acetyl-glucosamine, L-arabinose, D-glucose, glycerol, inulin, lactose,
D-lyxose, D-mannose, maltose, melibiose, methyl alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, raffinose, D-ribose,
sorbitol, sucrose, tagatose, turanose and D-xylose.
Negative results for acid phosphatase, cellulase, citrate utilization, egg yolk reaction, esterase (C4), alpha-galactosidase,
beta-glucuronidase, beta-glucosidase, hippurate hydrolysis, nitrate reduction, phenylalanine deamination, Tween 20 and 80
hydrolysis, tyrosine degradation, Tween 20 and 80 hydrolysis, trypsin, Voges-Proskauer reaction, valine arylamidase, acid production
from: D-galactose, L-rhamnose and sorbose.
Variable acid production from D-mannitol.
hydrolysis of Tween 40 and 60, acid production from: N-acetyl-glucosamine, L-arabinose, D-glucose, glycerol, inulin, lactose,
D-lyxose, D-mannose, maltose, melibiose, methyl alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, raffinose, D-ribose,
sorbitol, sucrose, tagatose, turanose and D-xylose.
Negative results for acid phosphatase, cellulase, citrate utilization, egg yolk reaction, esterase (C4), alpha-galactosidase,
beta-glucuronidase, beta-glucosidase, hippurate hydrolysis, nitrate reduction, phenylalanine deamination, Tween 20 and 80
hydrolysis, tyrosine degradation, Tween 20 and 80 hydrolysis, trypsin, Voges-Proskauer reaction, valine arylamidase, acid production
from: D-galactose, L-rhamnose and sorbose.
Variable acid production from D-mannitol.
(c) Costin Stoica
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