SPECTRAL HOLE-BURNING STUDY OF INTACT-CELLS OF GREEN BACTERIUM CHLOROBIUM-LIMICOLA

被引：28

作者：

FETISOVA, ZG ^{[1
]}

MAURING, K ^{[1
]}

机构：

[1] ESTONIAN ACAD SCI,INST PHYS,TARTU 202400,ESTONIA

来源：

FEBS LETTERS | 1993年 / 323卷 / 1-2期

关键词：

LIGHT-HARVESTING ANTENNA; PIGMENT OLIGOMERIZATION; ENERGY TRANSFER; CHLOROBIUM-LIMICOLA CELL;

D O I：

10.1016/0014-5793(93)81470-K

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：

Spectral hole burning studies of intact cells of the green bacterium, Chlorobium limicola, have proven that the Q(y)-absorption system of antenna bacteriochlorophyll c (BChl c) should be interpreted in terms of the delocalized exciton level structure of an oligomer. For the first time the 0-0 band of the lowest exciton state of BChl c oligomers has been directly detected as the lowest energy inhomogeneously broadened band (FWHM approximately 100 cm-1; position of maximum, at approximately 774 nm) of the near-infrared BChl c band of 1.8K excitation spectrum (FWHM = 830 cm-1; position of maximum, at 751 nm).

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页码：159 / 162

页数：4

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