FIG. 2.
Growth (expressed as OD600; open symbols) and extracellular Mn(II)-oxidizing (MO) activity (closed symbols) of L. discophora SS-1 cells in carbon-limited media. Media were as follows: 1 μM Fe/2.9 mM pyruvate (squares) and 0.1 μM Fe/2.9 mM pyruvate (control; triangles). The values are means ± standard deviations for duplicate cultures.