The primary reaction of photosystem II in the D1‐D2‐cytochrome b‐559 complex

FEBS Letters

Danielius, Romas V.¹  van Gorkom, Hans J.¹  Nuijs, Antonius M.¹  Plijter, Johan J.¹  Satoh, Kimiyuki¹  van Kan, Paul J.M.¹ 

[1] Department of Biophysics, Huygens Laboratory of the State University, PO Box 9504, 2300 RA Leiden, The Netherlands

关键词: Reaction center;    Photosystem II;    Primary reaction;    Picosecond spectroscopy;    Chl;    chlorophyll;    PS;    photosystem;    P680;    primary electron donor in PS II;    QA;    permanently bound plastoquinone acting as secondary electron acceptor in PS II;   

DOI  :  10.1016/0014-5793(87)81498-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Flash-induced absorbance changes in the picosecond and nanosecond time range have been measured in the ‘D1-D2-cyt b-559 complex’ isolated from photosystem II membranes. The results indicate the efficient formation of the primary radical pair P680⁺ pheophytin⁻, which had a lifetime of about 36 ns, and the presence of unconnected chlorophyll in this preparation. It is concluded that the complex contains the active photosystem II reaction center, and that this reaction center contains at most 4 chlorophyll a molecules.

【 授权许可】

Unknown