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Ultrafast dynamics of a reconstituted Lhca4 subunit from the peripheral LHCI-730 antenna of photosystem I of higher plants were probed by femtosecond absorption spectroscopy at 77 K. Intramonomeric energy transfer from chlorophyll (Chl) b to Chl a and energy equilibration between Chl a molecules observed on the subpicosecond time scale are largely similar to subpicosecond energy equilibration processes...
A theoretical study of energy-transfer rates between chlorophyll a molecules within light-harvesting chlorophyll a/b complexes of photosystem II (LHC-II) based on transient absorption recovery data [(1985) FEBS Lett. 193, 267-270] has been made using a trimer model of interacting chromophores [(1977) Biochim. Biophys. Acta 462, 642-658]. It provides a kinetic explanation of the data and shows that...
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