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Mechanism of LaCl3 on increasing photosystem II activity of spinach
Hong, FS; Wang, L; Tao Y(陶冶); Tao, Y
2005
发表期刊CHINESE JOURNAL OF CHEMISTRY
卷号23期号:5页码:617-621
通讯作者Suzhou Univ, Coll Life Sci, Suzhou 215006, Jiangsu, Peoples R China ; Suzhou Univ, Lib, Suzhou 215006, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Synchrotron Radiat Lab, Beijing 100039, Peoples R China
文章类型Article
摘要The effect of LaCl3 on the K3Fe(CN)(6) (FeCy) reduction rate and the oxygen-evolving rate of PSII particles of spinach, and the spectral characterization of the D1/D2/Cytb559 of a PSII reaction center complex consisting of three polypeptides from spinach were studied. The experimental results showed that LaCl3 could significantly accelerate the transformation from light energy to electric energy, the electron transport, water photolysis and oxygen evolution of PSII of spinach, which was related to the spectral characterization of the D1/D2/Cytb559 complex. Soret band and Q band of Ch1-a of UV-vis spectrum of D1/D2/Cytb559 complex were blue shifted, and the fluorescence emission peak was blue shifted in LaCl3 treated spinach compared with that in the control. The EXAFS (extended X-ray absorption fine structure spectroscopy) revealed that La3+ was coordinated with 8 nitrogen or oxygen atoms in the first coordination shell with La-N or La-O bond length of 0.254 nm, and with 6 nitrogen or oxygen atoms in the second coordination shell with La-N or La-O bond length of 0.321 nm in the D1/D2/Cytb559 complex. The CD suggested that the secondary structure of DI/D2/Cytb559 complex have been little affected by the treatment of LaCl3.
关键词LaCl3 spinach photosystem II D1/D2/Cytb559 complex oxygen-evolving rate
学科领域Chemistry
研究领域[WOS]Chemistry ; Chemistry
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语种英语
研究领域[WOS]Chemistry ; Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000228739500030
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238120
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Hong, FS,Wang, L,Tao Y,et al. Mechanism of LaCl3 on increasing photosystem II activity of spinach[J]. CHINESE JOURNAL OF CHEMISTRY,2005,23(5):617-621.
APA Hong, FS,Wang, L,陶冶,&Tao, Y.(2005).Mechanism of LaCl3 on increasing photosystem II activity of spinach.CHINESE JOURNAL OF CHEMISTRY,23(5),617-621.
MLA Hong, FS,et al."Mechanism of LaCl3 on increasing photosystem II activity of spinach".CHINESE JOURNAL OF CHEMISTRY 23.5(2005):617-621.
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