Summary
Recent years have nullified an old illusion that all that is needed for a complete picture of photosynthetic excitation transfer and trapping dynamics is detailed structural information about the system. This still seems to be only a prerequisite. The present chapter highlights the problems concerning the coupling of lightharvesting antennas to reaction centers. Structural, kinetic as well as functional aspects of the coupling are considered. As the antenna-reaction center coupling is largely governed by the specific protein medium, interactions of pigments with their protein surroundings and the elastic properties of these proteins are studied by employing high hydrostatic pressure technique. Excitation transfer from the antenna to the reaction center takes place in tens of picoseconds. The reaction center is a rather perfect trap. In conditions of photosynthesis, only about a quarter of the energy entering the reaction center is transferred back to the antenna. A conclusion is made that future progress in the field is expected by a more detailed study of the dynamical properties of pigment-protein complexes.
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Freiberg, A. (1995). Coupling of Antennas to Reaction Centers. In: Blankenship, R.E., Madigan, M.T., Bauer, C.E. (eds) Anoxygenic Photosynthetic Bacteria. Advances in Photosynthesis and Respiration, vol 2. Springer, Dordrecht. https://doi.org/10.1007/0-306-47954-0_19
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DOI: https://doi.org/10.1007/0-306-47954-0_19
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