Excitation energy transfer in individual light-harvesting chlorosome from green photosynthetic bacterium Chloroflexus aurantiacus at cryogenic temperature

Yoshitaka Saga, Hitoshi Tamiaki, Yutaka Shibata, Shigeru Itoh

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The excitation energy transfer from bacteriochlorophyll(BChl)-c self-aggregates to energy-accepting BChl-a in proteins (baseplates) in an individual photosynthetic light-harvesting complex (chlorosome) of a green filamentous photosynthetic bacterium Chloroflexus aurantiacus was successfully observed at cryogenic temperature. The ratio of intensity of the fluorescence peak of BChl-a to that of BChl-c self-aggregates in individual chlorosomes, which demonstrated relative efficiency of the excitation energy transfer, was heterogeneous between 0.09 and 0.72. This suggests that excitonic interaction between BChl-c self-aggregates and BChl-a in baseplates was heterogeneous among individual chlorosomes.

本文言語English
ページ(範囲)34-37
ページ数4
ジャーナルChemical Physics Letters
409
1-3
DOI
出版ステータスPublished - 2005 6 20
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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