| Mechanism of LaCl3 on increasing photosystem II activity of spinach |
| Hong, FS; Wang, L; Tao Y(陶冶) ; Tao, Y
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| 2005
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| 发表期刊 | CHINESE JOURNAL OF CHEMISTRY
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| 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
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| 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. |
| 文章类型 | Article
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| 关键词 | LaCl3
spinach
photosystem II
D1/D2/Cytb559 complex
oxygen-evolving rate
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| 学科领域 | Chemistry
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| 研究领域[WOS] | Chemistry
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| URL | 查看原文
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| 语种 | 英语
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| WOS类目 | Chemistry, Multidisciplinary
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| WOS记录号 | WOS:000228739500030
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/238120
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| 专题 | 多学科研究中心
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| 作者单位 | 中国科学院高能物理研究所
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推荐引用方式
GB/T 7714 |
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.
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| 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.
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| 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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