Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Sulfurospirillum,
Sulfurospirillum barnesii Stolz et al. 1999.
Gram-negative, vibrioid to spiral-shaped cells, 0.3 x 1-2 μm. Motile by polar flagella.
Isolated from enrichments using agar plates containing a minimal salts medium with
20 mM acetate and 20 mM selenate, incubated in the presence of hydrogen. Grows at
25-35 ºC, but not at 42 ºC. Grows in the presence of 0.05% NaCl and pH 7.5. May
grow in microaerobic conditions.
Isolated from a selenium-contaminated freshwater marsh, Nevada, USA.
- Don J. Brenner and J.J. Farmer III, 2001. Family I. Campylobacteraceae. In: Bergey’s Manual of Systematic Bacteriology, Second
edition,Vol 2, part C, George M. Garrity (Editor-in-Chief), pp 1145-1168.
- Stolz (J.F.), Ellis (D.J.), Switzer Blum (J.), Ahmann (D.), Lovley (D.R.) And Oremland (R.S.): Sulfurospirillum barnesii sp. nov. and
Sulfurospirillum arsenophilum sp. nov., new members of the Sulfurospirillum clade of the Epsilon Proteobacteria. Int. J. Syst.
Bacteriol, 1999, 49, 1177-1180.
Can utilize selenate and arsenate as electron acceptors. Selenate is reduced through
selenite to selenium. Nitrate is reduced to ammonium. Selenate, arsenate, thiosulfate,
S0, trimethylamine oxide, Fe(III), nitrate, fumarate, aspartate & manganese dioxide can
be used as a terminal electron acceptor when grown under anoxic conditions with
lactate as the electron donor. Ferments fumarate.
(c) Costin Stoica