FIGURE 1.

Characteristics of high light-tolerant mutants. A, growth of WT and mutants under normal light (40 μmol photons m⁻²s⁻¹) and high light (200 μmol photons m⁻²s⁻¹). B, monitoring of NDH-CET activity using chlorophyll fluorescence analysis. The top curve shows a typical trace of chlorophyll fluorescence in the WT Synechocystis 6803. See text for experimental details. C, transposon insertion sites in mutants 1 and 2 as probed by PCR analysis using the primers listed in supplemental Table 1.