Induction of Nitrate-Dependent Fe(II) Oxidation by Fe(II) in Dechloromonas sp Strain UWNR4 and Acidovorax sp Strain 2AN

We evaluated the inducibility of nitrate-dependent Fe(II)-EDTA oxidation (NDFO) in non-growth, chloramphenicol-amended, resting-cell suspensions of Dechloromonas sp. strainUWNR4and Acidovorax sp. strain 2AN. Cells previously incubated with Fe(II)-EDTA oxidized ca. 6-fold more Fe(II)-EDTA than cells previously incubated with Fe(III)-EDTA. This is the first report of induction ofNDFO by Fe(II).