Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus wakoensis Nogi, Takami and
Horikoshi 2005. Description is based upon a single isolate.
Gram-positive, motile (peritrichous flagella) rods, 0.5-0.8 / 1.5-2.0 µm, producing
terminal, ellipsoidal endospores in swollen sporangia.
Colonies are yellowish. Aerobic growth. Alkaliphilic, pH range 8-10 (optimum 9).
Growth temperature 10-40 ºC (optimum 37 ºC). Halotolerant, grows in 0-10% NaCl.
Utilized in biotechnology for cellulase production.
Undetermined.
- Nogi Y., Takami H. and Horikoshi K., 2005. Characterization of alkaliphilic Bacillus strains used in industry: proposal of five novel
species. IJSEM 55, 2309-2315.
Positive results for catalase, nitrate reduction, hydrolysis of starch, hydrolysis of
cellulose, acid production from: arbutin, cellobiose, D-fructose, D-glucose, maltose,
D-mannitol, D-mannose, salicin, sorbitol, sucrose, trehalose & D-xylose.
Negative results for hydrolysis of gelatin, oxidase, indole production, H2S production,
hydrolysis of casein, hydrolysis of Tween 20, 40 & 60.
(c) Costin Stoica