Low-temperature single-molecule spectroscopy on photosynthetic pigment-protein complexes from purple bacteria.
The primary reactions of purple bacterial photosynthesis take place within two well characterized pigment-protein complexes, the core Reaction Center-Light Harvesting 1 (RC-LH1) complex and the more peripheral Light Harvesting 2 (LH2) complex. These antenna complexes serve to absorb incident solar radiation and to transfer it to the reaction-centers, where it is used to 'power' the photosynthetic redox reaction. This review provides an overview of how the character of the electronically excited states of these pigment-protein complexes are determined by quantum mechanics and how the respective spectral signatures can be observed by single-molecule spectroscopy.
Oellerich
Silke
S
Experimental Physics IV and Bayreuth Institute for Macromolecular Research, Universität Bayreuth, Universtitätsstrasse 30, Bayreuth, Germany.
Köhler
Jürgen
J
D010788:Photosynthesis / Q000502:physiology*; D010860:Pigments, Biological / Q000737:chemistry / Q000378:metabolism*; D010940:Plant Proteins / Q000737:chemistry / Q000378:metabolism*; D020560:Proteobacteria / Q000378:metabolism*; D013057:Spectrum Analysis / Q000379:methods*; D013696:Temperature
D010860:Pigments, Biological; D010940:Plant Proteins