PRIMARY ELECTRON-TRANSFER KINETICS IN BACTERIAL REACTION CENTERS WITH MODIFIED BACTERIOCHLOROPHYLLS AT THE MONOMERIC SITES BA,B

被引：24

作者：

FINKELE, U

LAUTERWASSER, C

STRUCK, A

SCHEER, H

ZINTH, W

机构：

[1] UNIV MUNICH,INST MED OPT,W-8000 MUNICH 2,GERMANY

[2] UNIV MUNICH,INST BOT,W-8000 MUNICH 2,GERMANY

[3] TECH UNIV MUNICH,DEPT PHYS,W-8000 MUNICH 2,GERMANY

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1992年 / 89卷 / 20期

关键词：

PHOTOSYNTHESIS; FEMTOSECOND SPECTROSCOPY; RHODOBACTER-SPHAEROIDES;

D O I：

10.1073/pnas.89.20.9514

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The primary electron transfer has been investigated by femtosecond time-resolved absorption spectroscopy in two chemically modified reaction centers (RC) of Rhodobacter sphaeroides, in which the monomeric bacteriochlorophylls B(A) and B(B) have both been exchanged by 13(2)-hydroxybacteriochlorophyll a or [3-vinyl]-13(2)-hydroxybacteriochlorophyll a. The kinetics of the primary electron transfer are not influenced by the 13(2)-hydroxy modification. In RCs containing [3-vinyl]-13(2)-hydroxybacteriochlorophyll a the primary rate is reduced by a factor of 10.

引用

页码：9514 / 9518

页数：5

共 38 条

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