| Anaerobacillus arseniciselenatis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Anaerobacillus, Anaerobacillus
arseniciselenatis (Switzer Blum et al. 2001) Zavarzina, Tourova, Kolganova, Boulygina and Zhilina 2010.
Basonym: Bacillus arseniciselenatis Switzer Blum, Burns Bindi, Buzzeli, Stolz and Oremland, 2001.
Description is based upon a single isolate.
arseniciselenatis (Switzer Blum et al. 2001) Zavarzina, Tourova, Kolganova, Boulygina and Zhilina 2010.
Basonym: Bacillus arseniciselenatis Switzer Blum, Burns Bindi, Buzzeli, Stolz and Oremland, 2001.
Description is based upon a single isolate.
Gram-positive, nonmotile, 0.5-1.0 x 3-10 µm, spore-forming rods.
Moderately halophilic (optimum salinity of 60g/l NaCl), moderately alkaliphilic
(optimum pH = 8.5-10). Strictly anaerobic. Show respiratory growth with Se (VI)
(selenate), As (V) (arsenate), Fe (III), nitrate and fumarate as electron acceptors.
Colonies are formed on lactate / selenate / yeast extract-supplemented lakewater
medium. Produce red colonies, owing to elemental selenium precipitation, on
selenium oxide media. Grows fermentatively on fructose. Allantoin or urate are not
required for growth.
Growth temperature 20 ºC. NaCl is required for growth. Grow in 5-10% NaCl broth.
(optimum pH = 8.5-10). Strictly anaerobic. Show respiratory growth with Se (VI)
(selenate), As (V) (arsenate), Fe (III), nitrate and fumarate as electron acceptors.
Colonies are formed on lactate / selenate / yeast extract-supplemented lakewater
medium. Produce red colonies, owing to elemental selenium precipitation, on
selenium oxide media. Grows fermentatively on fructose. Allantoin or urate are not
required for growth.
Growth temperature 20 ºC. NaCl is required for growth. Grow in 5-10% NaCl broth.
Isolated from arsenic-rich sediment of Mono Lake, California
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. - Zavarzina D.G., Tourova T.P., Kolganova T.V., Boulygina E.S. and Zhilina T.N., 2009. Description of Anaerobacillus alkalilacustre
gen. nov., sp. nov.- Strictly anaerobic diazotrophic bacillus isolated from soda lake and transfer of Bacillus arseniciselenatis ,
Bacylus macyae , and Bacillus alkalidiazotrophicus to Anaerobacillus as the new combinations A. arseniciselenatis comb. nov.,
A. macyae comb. nov., and A. alkalidiazotrophicus comb. nov. Microbiology (English translation of Mikrobiologiia) 78, 723-731.
Positive results for oxidase, catalase, utilization of lactate, malate, fructose, starch & citrate.
(c) Costin Stoica
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