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Primary electron transfer processes in photosynthetic reaction centers from oxygenic organisms
The results suggest that the sequence of the primary electron transfer reactions is P680-→ ChlD1 → PheD1–→ QA →-QA (PS II) and P700-→-A0A/A0B →–A1 a/A1B (PS I), however, alternate routes of charge separation in PS II, under different excitation conditions, are not ruled out. Expand
Electrogenic reactions and dielectric properties of photosystem II
Evaluation of the dielectric properties using the electrometric data and the polarity profiles of reaction center from purple bacteria Blastochloris viridis and photosystem II are presented, important for understanding of the mechanism of electron transfer between redox cofactors. Expand
[Electrogenic reactions in the photosystem I].
The processes of electron transfer in cyanobacterial photosystem I (PS I) and photoelectric methods of the studies were reviewed and possible mechanisms of correlation between the local dielectric constant and the electron transfer rate constant in the corresponding segment of the chain were discussed. Expand
[Electrogenic reactions in cytochrome bf-complexes in a model system].
It was shown that the primary donor P700 in photosystem I and cytochrome f are predominantly localized near the outer surface of the proteoliposomal membrane, which made it possible to study for the first time electrogenic reactions of cy tochrome bf complexes in a model system. Expand
[Kinetics of the generation of a photo-induced electric potential in chromatophores of photosynthetizing bacteria].
Comparison of the kinetic and potentiometric characteristics of the process with those of electron transport reactions suggests that the fast phase of delta psi rise is due to charge separation between the primary electron donor, P870, and primary electron acceptor QIFe; the slow phase, which is inhibited by o-phenanthroline, isdue to electron donation from QIFo to the secondary acceptor, quinone QII. Expand
[Reversible electric current generation by reconstituted mitochondrial transhydrogenase].
It was shown that the addition of substrates of either forward (NadPH and NAD+) or reverse (NADH and NADP+) transhydrogenase reaction gives rise to formation of electric potential difference across the proteoliposome-treated membrane filter. Expand