EXCITATION DELOCALIZATION OVER THE WHOLE CORE ANTENNA OF PHOTOSYNTHETIC PURPLE BACTERIA EVIDENCED BY NONLINEAR PUMP-PROBE SPECTROSCOPY

被引：33

作者：

NOVODEREZHKIN, VI

RAZJIVIN, AP

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,CTR INT LASER,MOSCOW 119899,RUSSIA

[2] RUSSIAN ACAD SCI,SCI RES CTR TECHNOL LASERS,TROITSK,RUSSIA

来源：

FEBS LETTERS | 1995年 / 368卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

EXCITON INTERACTION; BACTERIAL PHOTOSYNTHESIS;

D O I：

10.1016/0014-5793(95)00663-T

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：

Anomalously high values of photoinduced absorption changes were revealed in the antenna of photosynthetic purple bacteria, They were found to be 4-16 times greater at the bleaching peak of the antenna than at the bleaching peak of the BChl dimer of the reaction center, This is direct proof of excitation delocalization over many pigment molecules, Calculations according to the model of exciton delocalization over all core antenna BChls allow one to explain the observed phenomenon.

引用

收藏

页码：370 / 372

页数：3

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