Time‐resolved ultrafast blue‐shifted fluorescence from pea chloroplasts

FEBS Letters

McCauley, Steven W.¹  Holzwarth, Alfred R.¹  Bittersmann, Edith¹ 

[1] Max-Planck-Institut für Strahlenchemie, Stiftstraße 34-36, D-4330 Mülheim/Ruhr, FRG

关键词: Time-resolved fluorescence;    Anti-Stokes-shifted fluorescence;    Exciton;    Chlorophyll antenna;    Chl;    chlorophyll;    PS;    photosystem;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;   

DOI  :  10.1016/0014-5793(89)80642-8

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The antenna chlorophylls in higher plants can produce fluorescence that is blue-shifted (anti-Stokes-shifted) relative to the exciting light. Global analysis of the time-resolved fluorescence spectra resolves an ultrafast fluorescence emission component with a lifetime of about 15 ps which is attributed to exciton equilibration in the antenna. These results support the hypothesis that the overall exciton decay kinetics in PS I and PS II is trap-limited as suggested by us earlier.

【 授权许可】

Unknown