Correlation of φCouplingCar S1 − Chl with fluorescence quenching (presented as kd), for quenched LHCII in the gel system. Fluorescence quenching was induced as in Ilioaia et al. (24). Samples were 10, 27, 40, 60, and 78% quenched compared with the unquenched LHCII gel (0%). This corresponds to 0.11, 0.37, 0.67, 1.5, and 3.55 kd values, respectively. Error bars, S.E.