Temperature Dependence of the Excitation Transfer in Photosynthetic Systems

Abstract

The temperature dependence of the excitation energy transfer rate is expressed in terms of the resonance transfer with phonon emission and absorption. By the use of this theory and of the kinetic parameters obtained from the data of picosecond fluorescence of the photosynthetic pigment systems (by Yu et al.), both the mean excitation transfer distance between light-harvesting pigments and the mean distance between the two reaction centeral chlorophyll molecules were evaluated. The present numerical results for the temperature dependence of the excitation transfer rate show that the excitation transfer in photosynthetic pigment system is very efficient around the temperature on the earth.