… 6) consisted of a ditolylporphyrin covalently bonded via amide linkages to a quinone electron
acceptor and a carotenoid secondary electron donor. Transient spectroscopic studies of …

… as early electron donors and acceptors in RCs of the four phyla of anoxygenic photosynthetic
… the subunit compositions of the RCs and the E m values of the primary electron donors. …

… The yield of the triplet state of the primary electron donor of Photosystem I of photosynthesis
… ESR signal of the photoaccumulated intermediary acceptor A have been measured for two …

… Photochemical reaction centers exist in two basic forms differentiated by some structural
features and the nature of the terminal electron acceptor (Fig. 1). Type II reaction centers are …

… oscillations in the presence of an electron donor to P + , we … or B-branch electron transfer
in mutant reaction centers from … transitions in photosynthetic reaction centers: comparison of …

… The reaction center is not only a paradigm for one of the most … electron donor/acceptor-system
and offers unprecedented opportunities for the study of basic questions of electron transfer …

… photosynthetic reaction center. Such an extremely long lifetime of the tetrad system has been
well correlated with the charge-separated lifetimes of two homologous series of porphyrin−…

… a similar observation in bacterial reaction centers (19-22), it … "primary" electron acceptor in
PS II reaction centers and that … highly enriched in PS II reaction center components and free of …

… As an electron acceptor (A) we used water-soluble ubiquinone-10 which has a redox
potential closed to the internal ubiquinone (Q B ) (Fig. 1B) and thus can effectively accept …