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Forster energy transfer in chlorosomes of green photosynthetic bacteriaEnergy transfer properties of whole cells and chlorosome antenna complexes isolated from the green sulfur bacteria Chlorobium limicola (containing bacteriochlorophyll c), Chlorobium vibrioforme (containing bacteriochlorophyll d) and Pelodictyon phaeoclathratiforme (containing bacteriochlorophyll e) were measured. The spectral overlap of the major chlorosome pigment (bacteriochlorophyll c, d or, e) with the bacteriochlorophyll a B795 chlorosome baseplate pigment is greatest for bacteriochlorophyll c and smallest for bacteriochlorophyll e. The absorbance and fluorescence spectra of isolated chlorosomes were measured, fitted to gaussian curves and the overlap factors with B795 calculated. Energy transfer times from the bacteriochlorophyll c, d or e to B795 were measured in whole cells and the results interpreted in terms of the Forster theory of energy transfer.
Document ID
20040112284
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Causgrove, T. P.
(Arizona State University Tempe 85287-1604)
Brune, D. C.
Blankenship, R. E.
Date Acquired
August 21, 2013
Publication Date
August 14, 1992
Publication Information
Publication: Journal of photochemistry and photobiology. B, Biology
Volume: 15
Issue: 2-Jan
ISSN: 1011-1344
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: DE-FG-88-ER13969
CONTRACT_GRANT: DE-FG-85ER13388
Distribution Limits
Public
Copyright
Other
Keywords
NASA Program Exobiology
NASA Discipline Number 52-30
NASA Discipline Exobiology
Non-NASA Center

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