EXCITONIC INTERACTIONS IN THE LIGHT-HARVESTING ANTENNA OF PHOTOSYNTHETIC PURPLE BACTERIA AND THEIR INFLUENCE ON PICOSECOND ABSORBENCY DIFFERENCE SPECTRA

Authors
NOVODEREZHKIN VI RAZJIVIN AP
Citation
Vi. Novoderezhkin et Ap. Razjivin, EXCITONIC INTERACTIONS IN THE LIGHT-HARVESTING ANTENNA OF PHOTOSYNTHETIC PURPLE BACTERIA AND THEIR INFLUENCE ON PICOSECOND ABSORBENCY DIFFERENCE SPECTRA, FEBS letters, 330(1), 1993, pp. 5-7
Citations number
16
Categorie Soggetti
Biophysics,Biology
Journal title
FEBS letters → ACNP
ISSN journal
00145793
Volume
330
Issue
1
Year of publication
1993
Pages
5 - 7
Database
ISI
SICI code
0014-5793(1993)330:1<5:EIITLA>2.0.ZU;2-S
Abstract
A new model of the light-harvesting antenna (core complex) of purple p hotosynthetic bacteria is proposed based on excitonic interactions in circular aggregates of bacteriochlorophyll molecules. The calculated a bsorbance difference spectra of circular aggregates demonstrate all sp ecial features observed in the experimental spectra of purple bacteria . In particular, the absorption changes with high amplitude of bleachi ng at the long-wavelength side of the absorption band at different exc itation energy are predicted.