Possible states of photosystem II reaction center and thermoluminescence of higher plants. I. Analysis of models of thermoluminescence and their applicability for the description of experimental data

A method for the deconvolution of experimental glow curves into overlapping bands and determination of the activation energies for these bands is prop osed. The model includes the S-states of the water-splitting complex, tyroz ine Z and P680 on the donor side, pheophytine, primary and secondary quinon e acceptors on the acceptor side, and takes into account the connection bet ween different states of the reaction center complex. The rate constants of forward electron transport and the activation energies of backward reactio ns of electron transfer in photosystem II reaction center, included into th e model, are estimated from the known experimental data using the proposed approach.