Table 2.

Maximum Fe(II) oxidation rates per cell measured in pure cultures and in littoral freshwater lake sediment from microcosm experiments.

Species/group	Maximum Fe(II) oxidation rate (μmol Fe(II)/cell·day−1)
Acidovorax strain BoFeN1[1]	1.0·10−8
Rhodobacter ferrooxidans sp. SW2[2]	4.4·10−10
Rhodopseudomonas palustris, strain TIE-1[3]	6.6·10−9
Microcosm photoferrotrophs[4]	5.4·10−6
Microcosm ${\text{NO}}_3^{-}$-reducing Fe(II)-oxidizers[4]	7.1·10−6

^[1]Kappler et al. (2005b).

^[2]Hegler et al. (2008).

^[3]Jiao et al. (2005).

^[4]This study, the maximum Fe(II) oxidation rate was determined from the microcosm incubations; the cell numbers used for the calculation stem from the MPN quantification.