| Viridibacillus arvi |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Viridibacillus, Viridibacillus arvi
(Heyrman et al. 2005) Albert et al. 2007, type species of the genus.
Basonym: Bacillus arvi Heyrman et al. 2005.
(Heyrman et al. 2005) Albert et al. 2007, type species of the genus.
Basonym: Bacillus arvi Heyrman et al. 2005.
Gram-variable rods, 0.8-1.0 x 3.0-8.0 µm, occurring singly and in pairs. Motile. Produce
terminally, spherical endospores in swollen sporangia. Endospore formation is slow
and scarce on NA MnSO4 after 10 days incubation at 30 ºC. On 1/2 BFA, endospores
are formed abundantly after approximately 3 days incubation at 30 ºC.
terminally, spherical endospores in swollen sporangia. Endospore formation is slow
and scarce on NA MnSO4 after 10 days incubation at 30 ºC. On 1/2 BFA, endospores
are formed abundantly after approximately 3 days incubation at 30 ºC.
Colonies are are butyrous, cream-coloured, semi-translucent and slightly raised, with
irregular margins that may spread along the inoculation streak, 1-3 mm in diameter.
They have granular textures and eggshell to glossy textured surfaces. Growth occurs
at 20 and 30 ºC but not at 45 ºC. Strains grow at pH 9 as profusely as at pH 7, but are
unable to grow at pH 5; tolerate 5% (w/v) NaCl but not 7%. Growth in anaerobic
conditions is weak.
irregular margins that may spread along the inoculation streak, 1-3 mm in diameter.
They have granular textures and eggshell to glossy textured surfaces. Growth occurs
at 20 and 30 ºC but not at 45 ºC. Strains grow at pH 9 as profusely as at pH 7, but are
unable to grow at pH 5; tolerate 5% (w/v) NaCl but not 7%. Growth in anaerobic
conditions is weak.
Isolated from soil of Drentse A agricultural research area, the Netherlands.
Undetermined.
- Heyrman J, Rodriguez-Diaz M, Devos J, Felske A, Logan NA, De Vos P. Bacillus arenosi sp. nov., Bacillus arvi sp. nov. and Bacillus
humi sp. nov., isolated from soil. Int J Syst Evol Microbiol 2005; 55:111-117. - 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 casein hydrolysis (weak), catalase, ONPG (weak), urease, acid production from: N-acetylglucosamine (weak) and
D-fructose. The other API 50 CHB substrates are not fermented.
Negative results for arginine dihydrolase, aesculin hydrolysis, citrate utilization, gelatinase, H2S production, indole production, lysine
decarboxylase, nitrate reduction, ornithine decarboxylase, oxidase, starch hydrolysis and Voges-Proskauer test.
No substrate was used as the sole carbon source in the API Biotype 100 kit.
D-fructose. The other API 50 CHB substrates are not fermented.
Negative results for arginine dihydrolase, aesculin hydrolysis, citrate utilization, gelatinase, H2S production, indole production, lysine
decarboxylase, nitrate reduction, ornithine decarboxylase, oxidase, starch hydrolysis and Voges-Proskauer test.
No substrate was used as the sole carbon source in the API Biotype 100 kit.
(c) Costin Stoica
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