Energy transfer in the B800–850 antenna complex of purple bacteria Rhodobacter sphaeroides: A study by spectral hole-burning

Autor: van der Laan, H., Schmidt, Th., Visschers, R.W., Visscher, K.J., van Grondelle, R., Völker, S.
Zdroj: Chemical Physics Letters; July 1990, Vol. 170 Issue: 2-3 p231-238, 8p
Abstrakt: The energy-transfer process within the isolated B800–850 pigment-protein complex of the purple bacterium Rhodobacter sphaeroideshas been studied by means of spectral hole-burning. The band at 800 nm is inhomogeneously broadened because holes could be burnt into it. The widths of these permanent holes are independent of wavelength and temperature between 1.2 and 30 K. The BChl 800→BChl 850 energy-transfer time deduced from these widths is 2.3±0.4 ps for the isolated complex, and also for chromatophores at 1.2 K.
Databáze: Supplemental Index