Spectral properties of single light-harvesting complexes in bacterial photosynthesis

Yoshitaka Saga, Yutaka Shibata, Hitoshi Tamiaki

Research output: Contribution to journalReview articlepeer-review

162 Citations (Scopus)


Photosynthetic light-harvesting complexes play important roles in the early events in photosynthesis in nature, and have been studied by various spectroscopic methodologies. Single molecule spectroscopy is one of the recent powerful methods to study fine electronic structures of photosynthetic light-harvesting complexes without averaging over an ensemble of the complexes. In this review, we focus on spectroscopic properties of single light-harvesting complexes in anoxygenic photosynthetic bacteria. In single supramolecule spectroscopy of light-harvesting complexes of purple photosynthetic bacteria, information on excitonic (de)localization on the arrangements of bacteriochlorophyll (BChl) a molecules, which is hidden in conventional measurements, has been obtained in detail. Single supramolecule spectroscopy has been applied to major antenna complexes (=chlorosomes) in green photosynthetic bacteria, revealing the spectral properties in relation to anisotropy and excitation energy transfer in single chlorosomes, their heterogeneity, and the number of BChl molecules per chlorosome.

Original languageEnglish
Pages (from-to)15-24
Number of pages10
JournalJournal of Photochemistry and Photobiology C: Photochemistry Reviews
Issue number1
Publication statusPublished - 2010 Mar


  • Chlorosome
  • LH1
  • LH2
  • Photosynthetic bacteria
  • Single molecule spectroscopy


Dive into the research topics of 'Spectral properties of single light-harvesting complexes in bacterial photosynthesis'. Together they form a unique fingerprint.

Cite this