Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Viridibacillus, Viridibacillus neidei (Nakamura, Shida,
Takagi and Komagata 2002) Albert, Archambault, Lempa, Hurst, Richardson, Gruenloh, Duran, Worliczek, Huber, Rossello-Mora,
Schumann and Busse 2007.
Basonym: Bacillus neidei Nakamura, Shida, Takagi and Komagata 2002.
Phenotypically very closed to Bacillus fusiformis, Bacillus pycnus and Bacillus sphaericus, and separable from these species by
growth factor requirements, several substrate oxidation, decomposition tests, and differences in fatty acid compositions.
Gram-positive, 1.0 x 3.0-5.0 µm, motile rods. Occur singly or in chains. Produce
terminally, spherical endospores in swollen sporangia.
Colonies are circular, thin, smooth, entire, 1.0 mm in diameter. On R2A agar Difco
develop a green pigment. Aerobic. Moderately acidophilic. Grow at pH 5.7-7 and in
0-5% NaCl. Optimal growth temperature is 28-33 ºC. Growth occurs at 5 and 45 ºC
(variable), not at 4 or above 45 ºC. Allantoin or urate are not required. Biotin, thiamine
and cystine are required.
Isolated from soil. Susceptible to chloramphenicol, tobramycin, streptomycin, erythromycin and tetracycline.
No growth in the presence of lysozyme (0.001%).
Undetermined.
- 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.
- L.K. Nakamura, O. Shida, H. Takagi and K. Komagata, 2002. Bacillus pycnus sp. nov. and Bacillus neidei sp.nov., round-spored
bacteria from soil. IJSEM 52, 501-505.
- R.A. Albert, J. Archambault, M. Lempa, B. Hurst, C. Richardson, S. Gruenloh, M. Duran, H.L. Worliczek, B.E. Huber, R. Rossello-
Mora, P. Schumann and H.-J.Busse, 2007. Proposal of Viridibacillus gen. nov. and reclassification of Bacillus arvi, Bacillus
arenosi and Bacillus neidei as Viridibacillus arvi gen. nov.,comb. nov., Viridibacillus arenosi comb. nov. and Viridibacillus neidei
comb. nov. IJSEM 57, 2729-2737.
Positive results for catalase, hydrolysis of gelatin and acid production (after 14 days
incubation) from fructose.
Negative results for degradation of tyrosine, hydrolysis of urea, egg yolk reaction, oxidase, indole, H2S, nitrate reduction, hydrolysis of
casein, hydrolysis of starch, Voges-Proskauer, citrate utilization, acid production (after 14 days incubation) from: L-arabinose,
cellobiose, D-glucose, glycerol, galactose, lactose, D-mannitol, D-mannose, ribose, sucrose, salicin, starch and D-xylose.
(c) Costin Stoica