Polarized absorption picosecond kinetics as a probe of energy transfer in phycobilisomes ofSynechococcus6301
- 3 October 1983
- journal article
- Published by Wiley in FEBS Letters
- Vol. 162 (1) , 64-68
- https://doi.org/10.1016/0014-5793(83)81050-3
Abstract
The energy transfer between C‐phycocyanin chromophores in intact phycobilisomes ofSynechococcus6301 is shown to lead to an anisotropy relaxation with a lifetime of 10 ± 2 ps. However, due to the molecular order within the hexameric units of C‐phycocyanin the anisotropy does not decay to zero. The Förster dipole‐dipole mechanism of energy transfer can qualitatively explain these data provided that there is no back transfer of excitation energy and that the chromophore distribution is non‐random. The rate of energy transfer in phycobilisomes between C‐phycocyanin and allophycocyanin can best be described by a double exponential with lifetimes of 12 ± 3 and 84 ± 8 ps.Keywords
This publication has 24 references indexed in Scilit:
- PICOSECOND TIME RESOLVED ENERGY TRANSFER IN ISOLATED PHYCOBILISOMES FROM RHODELLA VIOLACEA (RHODOPHYCEAE)*Photochemistry and Photobiology, 1982
- EXCITON ANNIHILATION IN THE ISOLATED PHYCOBILIPROTEINS FROM THE BLUE-GREEN ALGA NOSTOC SP. USING PICOSECOND ABSORPTION SPECTROSCOPYPhotochemistry and Photobiology, 1981
- EXCITON ANNIHILATION IN THE ISOLATED PHYCOBILIPROTEINS FROM THE BLUE-GREEN ALGA NOSTOC SP. USING PICOSECOND ABSORPTION SPECTROSCOPYPhotochemistry and Photobiology, 1981
- Electronic excited-state transport in random systems. Time-resolved fluorescence depolarization measurementsThe Journal of Physical Chemistry, 1981
- FLUORESCENCE RELAXATION KINETICS AND QUANTUM YIELD FROM THE ISOLATED PHYCOBILIPROTEINS OF THE BLUE‐GREEN ALGA NOSTOC SP. MEASURED AS A FUNCTION OF SINGLE PICOSECOND PULSE INTENSITY, IPhotochemistry and Photobiology, 1981
- Orientation and mobility of molecules in membranes studied by polarized light spectroscopyQuarterly Reviews of Biophysics, 1980
- EXCITATION ENERGY MIGRATION IN PHYCOBILISOMES: COMPARISON OF EXPERIMENTAL RESULTS AND THEORETICAL PREDICTIONSPhotochemistry and Photobiology, 1978
- Picosecond time-resolved energy transfer in Porphyridium cruentum. Part II. In the isolated light harvesting complex (phycobilisomes)Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1978
- Cold Shock Syndrome in Anacystis nidulansPlant Physiology, 1977
- Zwischenmolekulare Energiewanderung und FluoreszenzAnnalen der Physik, 1948