Fig. 5.

The H₂O₂ content is correlated with bacterial Sb(III) oxidation. The P. stutzeri strains were cultured as described above. a The H₂O₂ concentration was tested after 30 min of incubation with Sb(III). **Indicates a significant difference from the control (p < 0.01). b H₂O₂ content and (c) Sb(III) concentration in strains TS44, TS44-gshA₅₄₀ and TS44-gshA-C from 36 to 48 h of incubation in cultures supplemented with 0.2 mmol/L Sb(III). Data are expressed as the mean ± SD, N = 3. d Correlation between H₂O₂ and Sb(III) concentrations in strain TS44-gshA₅₄₀