Figure 7.

Decay Kinetics of Flash-Induced Chl Fluorescence.

Equal numbers of wild-type (solid black squares) and ∆rubA (open red triangles) cells were dark adapted for 5 min in the absence (−DCMU) or presence (+DCMU) of DCMU and subsequently excited with single turnover flash at time = 1 ms. The relaxations of the flash-induced Chl fluorescence were recorded and are shown after normalization to the initial amplitude. Mean values (averages) and the indicated se are derived from five independent measurements. a.u., arbitrary units.