Fig. 2

Bacterial resistance to three different metals in nutrient agar (NA). The bacterium corresponding to this study, M. hydrocarbonoxydans, showed a higher resistance to chromium (2.08 gL−1), followed by lead (1.24 gL−1) and a higher sensitivity to cadmium (0.17 gL−1). The assay was performed in triplicate. The standard deviation is indicated by the error bars.