Figure 2.

77 K fluorescence emission spectra for cells grown under nutrient-replete conditions. Synechocystis 6803 wild-type and mutants. Excitation is at 435 nm (chlorophyll excitation) and spectra are normalised to the PSI fluorescence emission peak at 725 nm. Cells grown under moderately high light (80 μmol m^-2 s^-1).