FORSTER ENERGY-TRANSFER IN CHLOROSOMES OF GREEN PHOTOSYNTHETIC BACTERIA

被引：51
|
作者：
CAUSGROVE, TP [1 ]
BRUNE, DC [1 ]
BLANKENSHIP, RE [1 ]
机构：
[1] ARIZONA STATE UNIV,CTR STUDY EARLY EVENTS PHOTOSYNTHESIS,DEPT CHEM & BIOCHEM,TEMPE,AZ 85287
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 1992年 / 15卷 / 1-2期
关键词：
CHLOROSOME; ENERGY TRANSFER; PHOTOSYNTHESIS; ANTENNA; BACTERIOCHLOROPHYLL; GREEN BACTERIA;
D O I：
10.1016/1011-1344(92)87014-Z
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Energy 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.
引用
收藏
页码：171 / 179
页数：9
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