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
相关论文
共 50 条
  • [31] Structure of light-harvesting complex B800-850 from photosynthetic bacterium Rhodobacter sphaeroides
    Klevanik, AV
    MOLECULAR BIOLOGY, 1996, 30 (05) : 727 - 732
  • [32] Selective Excitation of Carotenoids of the Allochromatium vinosum Light-Harvesting LH2 Complexes Leads to Oxidation of Bacteriochlorophyll
    Irina B. Klenina
    Zoya K. Makhneva
    Andrei A. Moskalenko
    Ivan I. Proskuryakov
    Biochemistry (Moscow), 2022, 87 : 1130 - 1137
  • [33] Carotenoid-to-(bacterio)chlorophyll energy transfer in LH2 antenna complexes from Rba. sphaeroides reconstituted with non-native (bacterio)chlorophylls
    Niedzwiedzki, Dariusz M.
    Swainsbury, David J. K.
    Hunter, C. Neil
    PHOTOSYNTHESIS RESEARCH, 2020, 144 (02) : 155 - 169
  • [34] Dimers of light-harvesting complex 2 from Rhodobacter sphaeroides characterized in reconstituted 2D crystals with atomic force microscopy
    Liu, Lu-Ning
    Aartsma, Thijs J.
    Frese, Raoul N.
    FEBS JOURNAL, 2008, 275 (12) : 3157 - 3166
  • [35] Energy transfer in an LH4-like light harvesting complex from the aerobic purple photosynthetic bacterium Roseobacter denitrificans
    Niedzwiedzki, Dariusz M.
    Fuciman, Marcel
    Frank, Harry A.
    Blankenship, Robert E.
    BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 2011, 1807 (05): : 518 - 528
  • [36] Ultrafast time-resolved spectroscopy of the light-harvesting complex 2 (LH2) from the photosynthetic bacterium Thermochromatium tepidum
    Niedzwiedzki, Dariusz M.
    Fuciman, Marcel
    Kobayashi, Masayuki
    Frank, Harry A.
    Blankenship, Robert E.
    PHOTOSYNTHESIS RESEARCH, 2011, 110 (01) : 49 - 60
  • [37] Near-atomic cryo-EM structure of the light-harvesting complex LH2 from the sulfur purple bacterium Ectothiorhodospira haloalkaliphila
    Burtseva, Anna D.
    Baymukhametov, Timur N.
    Bolshakov, Maxim A.
    Makhneva, Zoya K.
    V. Mardanov, Andrey
    Tsedilin, Andrey M.
    Zhang, Huawei
    Popov, Vladimir. O.
    Ashikhmin, Aleksandr A.
    Boyko, Konstantin M.
    STRUCTURE, 2025, 33 (02) : 311 - 320.e3
  • [38] Effects of low-molecular-weight polyols on the hydration status of the light-harvesting complex 2 from Rhodobacter sphaeroides 2.4.1
    Shi, Ying
    Yu, Jie
    Liu, Yu-Chen
    Wang, Peng
    Zhang, Jian-Ping
    PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2021, 20 (05) : 627 - 637
  • [39] Determination of FRET orientation factor between artificial fluorophore and photosynthetic light-harvesting 2 complex (LH2)
    Fujimoto, Kazuhiro J.
    Miyashita, Tomoya
    Dewa, Takehisa
    Yanai, Takeshi
    SCIENTIFIC REPORTS, 2022, 12 (01)
  • [40] FEMTOSECOND DYNAMICS OF ENERGY-TRANSFER IN B800-850 LIGHT-HARVESTING COMPLEXES OF RHODOBACTER-SPHAEROIDES
    TRAUTMAN, JK
    SHREVE, AP
    VIOLETTE, CA
    FRANK, HA
    OWENS, TG
    ALBRECHT, AC
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1990, 87 (01) : 215 - 219
12345