Energy transfer in a single self‐aggregated photosynthetic unit

FEBS Letters

Francia, Francesco¹  Oesterhelt, Dieter²  Köhler, Jürgen³  Hofmann, Clemens³  Venturoli, Giovanni¹ 

[1] Department of Biology, University of Bologna and INFM, Via Irnerio 42, 40126 Bologna, Italy;Department for Membrane Biochemistry, MPI for Biochemistry, Am Klopferspitz 18a, 82152 Martinsried, Germany;Experimental Physics IV and BZMB, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany

关键词: Light harvesting complex;    Photosynthesis;    Energy transfer;    Self-aggregation;    Rhodobacter sphaeroides;    BChl;    bacteriochlorophyll;    LH1;    light-harvesting complex 1;    LH2;    light-harvesting complex 2;    PMC;    photosynthetic membrane complex;    RC;    reaction centre;    PSU;    photosynthetic unit;   

DOI  :  10.1016/S0014-5793(03)00623-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The primary events of bacterial photosynthesis rely on the interplay of various specialized protein complexes organized in a supramolecular structure commonly termed the photosynthetic unit (PSU), which consists of the photochemical reaction center and of an associated antenna network. Employing single-molecule spectroscopic techniques we have been able to observe the excitation-energy transfer within a single PSU. From these findings we conclude that the building blocks of the PSU spontaneously form stable, functional aggregates in a non-membrane environment.

【 授权许可】

Unknown