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Low-Intensity Pump-Probe Measurements on the B800 Band of Rhodospirillum Molischianum

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Photosynthesis: Mechanisms and Effects

Abstract

The structure of the peripheral light-harvesting complex (LH2) of Rhodospirillum (Rs.) molischianum was recently resolved [1]. The structure shows a remarkable organization of the B800 bacteriochlorophylls. We have measured polarized low-intensity one-colour pump-probe traces in the B800 band of Rs. molischianum at 77 K. The excitation/detection wavelength was scanned through the B800 band. The analysis of the data was complemented by an in silico study of the kinetics of the excitation energy transfer in the B800 band. A Förster-type energy transfer was modelled using structural information and the homogenous absorption spectrum of a B800 pigment [2]. This model describes the spectroscopy and the dynamics of the B800 band.

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References

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Authors and Affiliations

  1. Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 11V, Amsterdam, The Netherlands

    Markus Wendling, Frank van Mourik, Ivo H. M. van Stokkum, Jante M. Salverda & Rienk van Grondelle

  2. Max-Planck-Institut für Biophysik, Heinrich-Hoffmann-Straße 7, 60528, Frankfurt am Main, Germany

    Hartmut Michel

Authors
  1. Markus Wendling
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  2. Frank van Mourik
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  3. Ivo H. M. van Stokkum
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  4. Jante M. Salverda
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  5. Hartmut Michel
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  6. Rienk van Grondelle
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Editor information

Editors and Affiliations

  1. Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary

    G. Garab

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© 1998 Springer Science+Business Media Dordrecht

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Wendling, M., van Mourik, F., van Stokkum, I.H.M., Salverda, J.M., Michel, H., van Grondelle, R. (1998). Low-Intensity Pump-Probe Measurements on the B800 Band of Rhodospirillum Molischianum. In: Garab, G. (eds) Photosynthesis: Mechanisms and Effects. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3953-3_11

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  • DOI: https://doi.org/10.1007/978-94-011-3953-3_11

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-5547-2

  • Online ISBN: 978-94-011-3953-3

  • eBook Packages: Springer Book Archive

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