Steady-state P700 oxidation and reduction.
Left, P700 oxidation and reduction measured using 720 nm actinic light at 400 (A), 700 (B), and 1400 μmol of photons m−2 s−1 (C). Right, P700 oxidation and reduction measured using 630 nm actinic illumination at 35 (D), 170 (E), and 560 μmol of photons m−2 s−1 (F). Colors correspond to plants as follows: wild type (black) and mutant PPD1 RNAi-E (red), -F (blue), -H (cyan), and -J (green).