Each of the six Prolixibacter strains was grown anaerobically at 25°C for 30 days under an atmosphere of N2:CO2 (4:1) in a 50-ml serum bottle containing an Fe0 foil immersed in 20 ml of corrosion-test medium or the medium containing 10 mM sulfate in place of nitrate. The concentrations of oxidized iron, nitrate, nitrite, and ammonium in each culture at day 30 were determined, and those in the aseptic control were subtracted from the respective values in each culture. Data represent means and standard deviations (n = 3). –: Not determined.
Table 4. Corrosion activities of two Fe0-corrodingProlixibacter strains on Fe0, carbon steel, and stainless steel.