Excitonic interactions in the light‐harvesting antenna of photosynthetic purple bacteria and their influence on picosecond absorbance difference spectra
Open Access
- 6 September 1993
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 330 (1) , 5-7
- https://doi.org/10.1016/0014-5793(93)80907-c
Abstract
A new model of the light‐harvesting antenna (core complex) of purple photosynthetic bacteria is proposed based on excitonic interactions in circular aggregates of bacteriochlorophyll molecules. The calculated absorbance difference spectra of circular aggregates demonstrate all special features observed in the experimental spectra of purple bacteria. In particular, the absorption changes with high amplitude of bleaching at the longwavelength side of the absorption band at different excitation energy are predicted.Keywords
This publication has 11 references indexed in Scilit:
- Picosecond kinetics of light excitations in photosynthetic purple bacteria in the temperature range of 300-4 KChemical Physics Letters, 1991
- Picosecond fluorescence of simple photosynthetic membranes: Evidence of spectral inhomogeneity and directed energy transferChemical Physics, 1991
- Energy-transfer dynamics in three light-harvesting mutants of Rhodobacter sphaeroides: a picosecond spectroscopy studyBiochemistry, 1990
- The cooperativity phenomena in a pigment‐protein complex of light‐harvesting antenna revealed by picosecond absorbance difference spectroscopyFEBS Letters, 1989
- Energy transfer within the isolated B875 light‐harvesting pigment‐protein complex of Rhodobacter sphaeroides at 77 K studied by picosecond absorption spectroscopyFEBS Letters, 1988
- Excitation-energy transport in the bacteriochlorophyll antenna systems of Rhodospirillum rubrum and Rhodobacter sphaeroides, studied by low-intensity picosecond absorption spectroscopyBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1986
- STRUCTURE AND FUNCTION OF LIGHT‐HARVESTING COMPLEXES AND THEIR POLYPEPTIDESPhotochemistry and Photobiology, 1985
- Singlet and triplet excited carotenoid and antenna bacteriochlorophyll of the photosynthetic purple bacterium Rhodospirillum rubrum as studied by picosecond absorbance difference spectroscopyBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1985
- The study of excitation transfer between light‐harvesting antenna and reaction center in chromatophores from purple bacterium Rhodospirillum rubrum by selective picosecond spectroscopyFEBS Letters, 1982
- Minor component B‐905 of light‐harvesting antenna in Rhodospirillum rubrum chromatophores and the mechanism of singlet—singlet annihilation as studied by difference selective picosecond spectroscopyFEBS Letters, 1982