Physical origins and models of energy transfer in photosynthetic light-harvesting.
We perform a quantitative comparison of different energy transfer theories, i.e. modified Redfield, standard and generalized Förster theories, as well as combined Redfield-Förster approach. Physical limitations of these approaches are illustrated and critical values of the key parameters indicating their validity are found. We model at a quantitative level the spectra and dynamics in two photosynthetic antenna complexes: in phycoerythrin 545 from cryptophyte algae and in trimeric LHCII complex from higher plants. These two examples show how the structural organization determines a directed energy transfer and how equilibration within antenna subunits and migration between subunits are superimposed.
A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninskie Gory, 119992, Moscow, Russia.
Vladimir I
VI
Novoderezhkin
Rienk
R
van Grondelle
D044785:Cryptophyta / Q000737:chemistry / Q000378:metabolism; D004735:Energy Transfer / Q000502:physiology / Q000528:radiation effects*; D008027:Light; D045342:Light-Harvesting Protein Complexes / Q000737:chemistry / Q000378:metabolism / Q000528:radiation effects*; D008954:Models, Biological; D010788:Photosynthesis / Q000502:physiology / Q000528:radiation effects*; D045332:Photosystem II Protein Complex / Q000737:chemistry / Q000378:metabolism; D010799:Phycoerythrin / Q000737:chemistry / Q000378:metabolism; D010944:Plants / Q000737:chemistry / Q000378:metabolism
D045342:Light-Harvesting Protein Complexes; D045332:Photosystem II Protein Complex; C045714:phycoerythrin 545; D010799:Phycoerythrin