Figure 6.

Fast redox kinetics of PSI measured as change in A₈₃₀ after preillumination with strong far-red light (710 nm) and a white light pulse of 200 ms (up arrows indicate white light on, and down arrows indicate switching off actinic far-red and white light). Cells precultured under HC conditions of the wild type (WT) and the mutant Δsml0013::Km were measured without the addition of inhibitors, after the addition of KCN to inhibit electron flow into the respiratory electron chain toward Cytc oxidase, and after combined addition of KCN and DCMU to inhibit both respiratory and photosynthetic linear electron flow from PSII.