Figure 3
Influence of metals and H 2 O 2 on the abundance of photosynthetic pigments. Typical absorption spectra of the wild type (WT) or slr1738 null-mutant (Δslr1738) cells following incubation for the indicated durations on solid BG11 medium with or without H2O2 (3 mM), CdSO4 (50 μM), Co(NO3)2 (350 μM), (NH4)FeH2C6H5O7 (350 μM) or ZnSO4 (350 μM or 776 μM). The spectra (normalized to light scattering at 800 nm) are displayed in panels A to F. These experiments were repeated three to five times.