Sulfurospirillum arsenophilum
Taxonomy
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Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Sulfurospirillum,
Sulfurospirillum arsenophilum
 Stolz et al. 1999.
Gram-negative, vibrioid to spiral-shaped cells, 0.3 x 1-2 μm. Motile by single polar
flagellum.
Grows at 20-30 ºC, but not at 37 or 42 ºC. Grows in the presence of 0.1% NaCl but not
in 1% NaCl. Optimum pH 7.5.
Isolated from arsenic-contaminated freshwater sediments in USA.
Undetermined.
  1. 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.
  2. 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.
Nitrate is reduced to ammonia. Can ferment fumarate. Hydrogen and formate can
serve as electron donors when acetate is used as the carbon source. Lactate,
pyruvate and fumarate can be used as electron donors. Arsenate, nitrate and
fumarate can serve as terminal electron acceptors.
(c) Costin Stoica
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