Comparative experimental and theoretical study of dependences of slow fluorescence induction and millisecond delayed luminescence induction curve parameters on adaptation time

摘要

The dependences of G = (F_m - F_s)/F_m parameter for slow fluorescence induction and delayed luminescence induction curves of adaptation time t_ad were abstained both in experiment, for the leaves of Hibiscus rosa chinensis in vivo, and in a theoretical study with the help of the theoretical model developed earlier. In both cases, the G(t_ad) dependences have the form of curves with saturation, which are well described by G = A(exp(-(t_ad/T_0)). Both in experiment and in theoretical calculations, G values for delayed luminescence were larger than for fluorescence. The ratio of saturation time for G(t_ad) for fluorescence and delayed luminescence was 1,40 for experiment and 1.46 for theoretical calculations. These results suggest that delayed luminescence induction is more sensitive to changes in the state of plant than the slow fluorescence induction.