Figure 1. Impact of various nitrate/chloride compounds on growth of S. oneidensis under aerobic conditions.

A. Growth of S. oneidensis in the presence of NaNO₃ (concentrations from 5 to 50 mM). B. Growth of S. oneidensis in the presence of NaNO₃ (concentrations from 100 to 1000 mM). C. Growth of S. oneidensis wild type and the napA mutant in the presence of NaNO₃ (10 and 20 mM). All experiments were performed at least three times. Error bars, representing the standard deviation of the mean, are all less than 3% and are omitted for clarity.