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
收藏
页码：2598 / 2601
页数：4
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