Abstract
The optical absorbance spectrum of photosynthetic reaction centers is made up of strongly-mixed absorptions of the chlorophyllous cofactors. This note discusses the questions whether the spectrum can be decomposed in contributions of individual cofactors, or combinations of cofactors. It is furthermore discussed whether certain features of the triplet-minus-singlet absorbance difference spectrum give a clue to the degree of localization of the triplet state of the primary electron donor.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Deisenhofer, J., Epp, O., Miki, H., Huber, R. and Michel, H. (1985) ‘Structure of the protein subunits in the photosynthetic reaction centre of Rhodopseudomonas viridis at 3 resolution’, Nature (London) 318, 618–624.
Allen, J.P., Feher, G., Yeates, T.O., Komiya, H. and Rees, D.C. (1987) ‘Structure of the reaction center from Rhodobacter sphaeroides R-26: The cofactors’, Proc. Natl. Acad. Sci. USA 84, 5730–5734.
Knapp, E.W., Scherer, P.O.J, and Fischer, S.F. (1986) ‘Model studies of low-temperature optical transitions of photosynthetic reaction centers. A-, LD-, CD-, ADMR- and LD-ADMR-spectra for Rhodopseudomonas viridis’, Biochim. Biophys. Acta 852, 295–305.
Scherer, P.O.J, and Fischer, S.F. (1987) ‘Model studies to low-temperature optical transitions of photosynthetic reaction centers. II. Rhodobacter sphaeroides and Chloroflexus aurantiacus’, Biochim. Biophys. Acta 891, 157–164.
Vasmel, H., Amesz, J. and Hoff, A.J. (1986) ‘Analysis by exciton theory of the optical properties of the reaction center of Chloroflexus aurantiacus’, Biochim. Biophys. Acta 852, 159–168.
Lous, E.J. and Hoff, A.J. (1987) ‘Exciton interactions in reaction centers of the photosynthetic bacterium Rhodopseudomonas viridis probed by optical triplet-minus-singlet polarization spectroscopy at 1.2 K monitored through absorbance-detected magnetic resonance’, Proc. Natl. Acad. Sci. USA 84, 6147–6151.
Allen, J.P. and Feher, G. (1988) ‘Structure of the reaction center from Rhodobacter sphaeroides R-26 and 2.4.1’ in J. Breton and A. Verméglio (eds.), The Photosynthetic Reaction Center. Structure and Dynamics, Plenum Press, New York, pp. 5–11.
Breton, J. (1985) ‘Orientation of the chromophores in the reaction center of Rhodopseudomonas viridis. Comparison of the low-temperature linear dichroism spectra with a model derived form X-ray crystallography’, Biochim. Biophys. Acta 810, 235–245.
Norris, J.R., Lin, C.P. and Budil, D.E. (1987) ‘Magnetic resonance of ultrafast chemical reactions. Examples from photosynthesis’, J. Chem. Soc. Faraday Trans. I. 83, 13–17.
Dijkman, J.A., Den Blanken, H.J. and Hoff, A.J. (1988) Towards a new taxonomy of photosynthetic bacteria: ADMR-monitored triplet difference spectroscopy of reaction center pigment-protein complexes’, Isr. J. Chem. 28, 141–148.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Kluwer Academic Publishers
About this paper
Cite this paper
Hoff, A.J., Groenen, E.J.J., Lous, E.J. (1990). A Note on Singlet-Singlet and Singlet-Triplet Exciton Interactions in the Bacterial Photosynthetic Reaction Center. In: Jortner, J., Pullman, B. (eds) Perspectives in Photosynthesis. The Jerusalem Symposia on Quantum Chemistry and Biochemistry, vol 22. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0489-7_7
Download citation
DOI: https://doi.org/10.1007/978-94-009-0489-7_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6706-5
Online ISBN: 978-94-009-0489-7
eBook Packages: Springer Book Archive