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In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae
Published on: October 10, 2014
Interactions of the bacteriochlorophylls in antenna bacteriochlorophyll-protein complexes of photosynthetic bacteria
1Biochemistry Department, The Weizmann Institute of Science, 76100, Rehovot, Israel.
Abstract:
Several models have been proposed for the arrangements of the bacteriochlorophylls in the antenna complexes of purple photosynthetic bacteria, but none of the models has accounted fully for the spectroscopic properties of the bacteriochlorophyll-protein complexes. We suggest a model involving strong exciton interactions within a bacteriochlorophyll dimer, and weaker interactions of each dimer with other, relatively distant dimers. The model is shown to account for the spectroscopic properties of the complexes, and to be consistent with other available information.
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