| Cytobacillus horneckiae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Cytobacillaceae, Genus Cytobacillus, Cytobacillus
horneckiae (Vaishampayan et al. 2010) Patel and Gupta 2020.
Old synonym: Bacillus horneckiae Vaishampayan et al. 2010.
horneckiae (Vaishampayan et al. 2010) Patel and Gupta 2020.
Old synonym: Bacillus horneckiae Vaishampayan et al. 2010.
Gram-positive, motile rods, 1.0-1.5 x 4.0-6.0 µm. Produce subterminal, oval
endospores which exhibit an external layer that appeared to attract other spores and
result in the formation of a biofilm or aggregates.
endospores which exhibit an external layer that appeared to attract other spores and
result in the formation of a biofilm or aggregates.
Colonies are yellowish, plain, 3 mm in diameter, with irregular edges after 24 hours
on TSA at 32 ºC. No pigment production. Aerobic; no anaerobic growth. Grow at pH
6-10 (optimum pH 7) and in 0-10% NaCl media. Temperature range 5-40 ºC.
on TSA at 32 ºC. No pigment production. Aerobic; no anaerobic growth. Grow at pH
6-10 (optimum pH 7) and in 0-10% NaCl media. Temperature range 5-40 ºC.
Isolated from a clean room of the Kennedy Space Center. Spores were resistant to UV radiation up to 1000 J/m2.
Undetermined.
- Vaishampayan P., Probst A., Krishnamurthi S., Ghosh S., Osman S., McDowall A., Ruckmani A., Mayilraj S. and Venkateswaran K.,
2010. Bacillus horneckiae sp. nov., isolated from a spacecraft-assembly clean room. IJSEM 60, 1031-1037. - 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.
Positive results for catalase, hydrolysis of gelatin (weak reaction) and nitrate reduction.
Negative results for arginine dihydrolase, beta-galactosidase, hydrolysis of esculin,
hydrolysis of urea, oxidase, indole production, acid production from: D- or L-arabinose, N-acetyl-D-glucosamine, adonitol, amygdalin,
D- or L-arabitol, arbutin, cellobiose, dulcitol, erythritol, fructose, D- or L-fucose, galactose, beta-gentiobiose, gluconate, D-glucose,
glycerol, glycogen, meso-inositol, inulin, 2- or 5-ketogluconate, lactose, lyxose, D-mannitol, D-mannose, maltose, melezitose,
melibiose, raffinose, rhamnose, ribose, salicin, starch, sorbitol, sorbose, sucrose, trehalose, xylitol, D- or L-xylose.
Negative results for arginine dihydrolase, beta-galactosidase, hydrolysis of esculin,
hydrolysis of urea, oxidase, indole production, acid production from: D- or L-arabinose, N-acetyl-D-glucosamine, adonitol, amygdalin,
D- or L-arabitol, arbutin, cellobiose, dulcitol, erythritol, fructose, D- or L-fucose, galactose, beta-gentiobiose, gluconate, D-glucose,
glycerol, glycogen, meso-inositol, inulin, 2- or 5-ketogluconate, lactose, lyxose, D-mannitol, D-mannose, maltose, melezitose,
melibiose, raffinose, rhamnose, ribose, salicin, starch, sorbitol, sorbose, sucrose, trehalose, xylitol, D- or L-xylose.
(c) Costin Stoica
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