Fluorescence spectroscopy of single photosynthetic light-harvesting supramolecular systems |
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| Authors: | Yoshitaka Saga Hitoshi Tamiaki |
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| Institution: | (1) Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577 Shiga, Japan |
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| Abstract: | Recent spectroscopic studies of photosynthetic light-harvesting supramolecular complexes at the single supramolecule level
are reviewed. This report describes the “single-molecule” investigation on light-harvesting complex 2 (LH2) of purple photosynthetic
bacteria, phycobiliproteins of cyanobacteria and red algae, light-harvesting complex 2 (LHC2) of higher plants, and chlorosomes
of green photosynthetic bacteria. Unique behaviors and spectral features of single light-harvesting apparatus have been unraveled
that were hidden by the ensemble averaging of many of the complexes. The information obtained with be useful for understanding
the electronic structures and energy-transfer mechanism of photosynthetic light-harvesting supramolecular systems. |
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| Keywords: | Bacteriochlorophyll chlorophyll chlorosome energy transfer excited states light-harvesting complex 2 phycobilin phycobiliprotein photosynthesis single-molecule spectroscopy |
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