Burns Bindi, Buzzelli, Stolz and Oremland 2001.
Description is based on a single isolate.
Gram-positive, nonmotile, 0.5 x 2-6 µm, nonspore-forming rods.
Produce red colonies on lactate/selenite/yeast extract-supplemented lake water
medium incubated anaerobically at 20 ºC.
Show weak microaerobic growth and anaerobic respiratory growth with Se(IV)
(selenite), As(V) (arsenate), nitrate, nitrite, trimethylamine oxide and fumarate as
electron acceptors; quantitatively reduces Se(IV) to Se (0) (elemental selenium)
Moderately halophilic, with salinity optimum of 24–60 g/l NaCl; moderately alkaliphilic.
NaCl is required for growth. Grow in 2 -10% NaCl broth. Optimum pH: 9-10.
Allantoin or urate are not required for growth.
Isolated from arsenic-rich sediment of Mono Lake, California
- 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.
Positive results for catalase & nitrate reduction. Negative results for oxidase & citrate utilization.
(c) Costin Stoica