Effect of photo-oxidation on energy transfer in light harvesting complex (LH2) from Rhodobacter sphaeroides 601

被引：0

作者：

Liu Kang-Jun

Liu Wei-Min

Yan Yong-Li

Dong Zhi-Wei

Liu Yuan

Xu Chun-He

Qian Shi-Xiong ^{[1
]}

机构：

[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Natl Key Lab Surface Sci, Shanghai 200433, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2006年 / 23卷 / 09期

关键词：

ONE-ELECTRON OXIDATION; RHODOBACTER-SPHAEROIDES; ANTENNA COMPLEXES; PHOTOSYNTHETIC BACTERIA; REACTION CENTERS; ELECTROCHEMICAL OXIDATION; RHODOSPIRILLUM-RUBRUM; EXCITATION TRANSFER; BACTERIOCHLOROPHYLL; DYNAMICS;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the photo-oxidation of bacteriochlorophylls (BChls) is peripheral light harvesting complexes (LH2) from rhodobacter sphaeroides by using the steady absorption and the femtosecond pump-probe measurement, to realize the detailed dynamics of LH2 in the presence of photo-oxidation. The experimental results reveal that BChl-B850 radical cations may act as an additional channel to compete with the unoxidized BChl-B850 molecules for rapidly releasing the excitation energy, while the B800 -> B850 energy transfer rate is almost unaffected in the oxidation process.

引用

页码：2598 / 2601

页数：4

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