Energy transfer within the isolated light‐harvesting chlorophyll a/b protein of photosystem II (LHC‐II)

FEBS Letters

Sandström, Åke¹  Spangfort, Michael²  Andersson, Bertil²  Gillbro, Tomas¹  Sundström, Villy¹ 

[1] Department of Physical Chemistry, University of Umeå, S-901 87 Umeå, Sweden;Department of Biochemistry, University of Lund, POB 124, S-221 00 Lund, Sweden

关键词: Light-harvesting complex;    Chlorophyll;    Energy transfer;    Picosecond spectroscopy;    Absorption anisotropy Photosynthesis;    SDS-PAGE;    SDS-polyacrylamide gel electrophoresis;    Tricine;    N-[2-hydroxy-1;    1-bis(hydroxymethyl)ethyl]glycine;   

DOI  :  10.1016/0014-5793(85)80166-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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.

【 授权许可】

Unknown