Primary steps of electron and energy transfer in photosystem I: Effect of excitation pulse wavelength

Primary steps of electron and energy transfer in photosystem I: Effect of excitation pulse wavelength

Time-resolved differential spectra of photosystem I complex were obtained by the “pump-probe” technique with 25-fs pulses with maxima at 670, 700, and 720 nm. The ratio between the number of excited chlorophyll molecules of the antenna and of the reaction center was shown to depend on spectral chara...

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Veröffentlicht in:Biochemistry (Moscow) 2012-09, Vol.77 (9), p.1011-1020
Hauptverfasser: Semenov, A. Yu, Shelaev, I. V., Gostev, F. E., Mamedov, M. D., Shuvalov, V. A., Sarkisov, O. M., Nadtochenko, V. A.
Format: Artikel
Sprache:eng
Schlagworte:
Antennas (Electronics)
Biochemistry
Biomedical and Life Sciences
Biomedicine
Bioorganic Chemistry
Bleaching
Chlorophyll
Electron transfer
Electrons
Energy Transfer
Kinetics
Lasers
Life Sciences
Microbiology
Photolysis
Photosynthesis
Photosystem I Protein Complex - chemistry
Photosystem I Protein Complex - isolation & purification
Photosystem I Protein Complex - metabolism
Spectrophotometry, Ultraviolet
Synechocystis - metabolism
Time Factors
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Zusammenfassung:Time-resolved differential spectra of photosystem I complex were obtained by the “pump-probe” technique with 25-fs pulses with maxima at 670, 700, and 720 nm. The ratio between the number of excited chlorophyll molecules of the antenna and of the reaction center was shown to depend on spectral characteristics of the pump pulses. In all cases, an ultrafast (
ISSN:0006-2979
1608-3040
DOI:10.1134/S0006297912090088