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Energy transfer within the isolated light‐harvesting chlorophyll a/b protein of photosystem II (LHC‐II)
Author(s) -
Gillbro Tomas,
Sundström Villy,
Sandström Åke,
Spangfort Michael,
Andersson Bertil
Publication year - 1985
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(85)80166-6
Subject(s) - light harvesting complexes of green plants , chlorophyll , photochemistry , photosystem ii , chlorophyll a , picosecond , photosystem i , p700 , chemistry , chlorophyll b , chromophore , photosynthesis , physics , optics , biochemistry , laser , organic chemistry
Picosecond absorption spectroscopy has been used to study energy transfer within the isolated light‐harvesting chlorophyll a/b protein complex of photosystem II (LHC‐II). The results suggest: (i) a fast transfer (τ = 6 ± 4 ps) from chlorophyll b to chlorophyll a , (ii) during the lifetime of the chlorophyll b excited state there is no transfer of excitation energy between differently oriented molecules of chlorophyll b , (iii) a fast redistribution (τ = 20 ps) of excitation energy between different chlorophyll a chromophores.