Energy transfer in the B800 rings of the peripheral bacterial light-harvesting complexes of Rhodopseudomonas acidophila and Rodospirillum molischianum studied with photon eche techniques
| Autor: | F. van Mourik, Jante M. Salverda, G. van der Zwan, R. van Grondelle |
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| Přispěvatelé: | Biophysics Photosynthesis/Energy, BioAnalytical Chemistry |
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Salverda, J M, van Mourik, F, van der Zwan, G & van Grondelle, R 2000, ' Energy transfer in the B800 rings of the peripheral bacterial light-harvesting complexes of Rhodopseudomonas acidophila and Rodospirillum molischianum studied with photon eche techniques ', Journal of Physical Chemistry B, vol. 104, no. 47, pp. 11395-11408 . https://doi.org/10.1021/jp002034z Journal of Physical Chemistry B, 104, 11395-11408. American Chemical Society Journal of Physical Chemistry B, 104(47), 11395-11408. American Chemical Society Salverda, J M, van Mourik, F, van der Zwan, G & van Grondelle, R 2000, ' Energy transfer in the B800 rings of the peripheral bacterial light-harvesting complexes of Rhodopseudomonas acidophila and Rhodospirillum molischianum studied with photon echo techniques ', Journal of Physical Chemistry B, vol. 104, pp. 11395-11408 . https://doi.org/10.1021/jp002034z |
| ISSN: | 1520-6106 |
| DOI: | 10.1021/jp002034z |
| Popis: | Eenergy transfer in the B800 ring of the LH2 antenna of the purple bacteria Rhodopseudomonas (Rps.) acidophila and Rhodospirillum (Rs.) molischianum was studied at room temperature using three-pulse echo peak shift (3PEPS) and transient grating (TG) techniques. From the transient grating experiments, we found the B800 → B850 energy transfer rates to be 600−700 fs for both species. The anisotropy of the TG signal decays in about 1 ps for both species, which is ascribed to B800 → B800 energy transfer. The occurrence of B800 → B800 energy transfer was further substantiated by 3PEPS experiments. When measured over the whole B800 band, the initial peak shift of about 30 fs exhibited a fast |
| Databáze: | OpenAIRE |
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