Figure 5.

Fluorescence kinetics of wild-type (WT) line and pgr5 (A), ΔrbcL and ΔrbcL pgr5 (B), and ΔATPase and ΔATPase pgr5 (C). Cells were grown in low light and TAP liquid media and analyzed with a JTS-10. The program monitored a number of variables to follow photosynthetic yield: an initial saturating flash (5,000 μmol photons m⁻² s⁻¹) gives access to the dark-adapted photosynthetic yield followed by a 3-min period of actinic light (170 μmol photons m⁻² s⁻¹) with saturating flashes to probe the yield of PSII, a return to darkness, and a final saturating flash to monitor PSII centers that recovered. D, Growth tests on TAP and MIN solid media for single and double mutants at light intensities shown (in micromoles photons minute⁻² second⁻¹). [See online article for color version of this figure.]