Influence of the electric field on the electron transport in photosynthetic reaction centers
M. Pudlak and R. Pincak
Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53, Kosice, Slovak Republic
Accepted: 1 February 2011
Published online: 7 March 2011
The effect of an electric field on the electron transfer in the bacterial reaction centers is investigated. The rate constants and quantum yields affected by the electric field for wild type (WT) and reaction center (RC) mutant of Rhodobacter capsulatus were computed. The dependence of the asymmetry of electron transfer in electric field on the temperature was evaluated. We found stable electron transfer for WT of the reaction center towards an electric field in comparison with the F(L121)D mutant of RC. We found quantum yields sensitive to the variation of the medium reorganization energy at low temperatures and strong electric fields. The quantum yields for unoriented RC samples were also calculated.
© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011