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Effects of Nano-anatase on Spectral Characteristics and Distribution of LHCII on the Thylakoid Membranes of Spinach

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An Erratum to this article was published on 25 June 2009

Abstract

In the article, we report that effects of nano-anatase on the spectral characteristics and content of light-harvesting complex II (LHCII) on the thylakoid membranes of spinach were investigated. The results showed that nano-anatase treatment could increase LHCII content on the thylakoid membranes of spinach and the trimer of LHCII; nano-anatase could enter the spinach chloroplasts and bind to PSII. Meanwhile, spectroscopy assays indicated that the absorption intensity of LHCII from nano-anatase-treated spinach was obviously increased in the red and the blue region, fluorescence quantum yield near 685 nm of LHCII was enhanced, the fluorescence excitation intensity near 440 and 480 nm of LHCII significantly rose and F 480/F 440 ratio was reduced. Oxygen evolution rate of PSII was greatly improved. Together, nano-anatase promoted energy transferring from chlorophyll (chl) b and carotenoid to chl a, and nano-anatase TiO2 was photosensitized by chl of LHCII, which led to enhance the efficiency of absorbing, transferring, and converting light energy.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (grant No. 20671067, 30470150) and by the Jiangsu Province Universities Natural Science Foundation (grant No. 06KJB180094).

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Authors and Affiliations

  1. College of Life Sciences, Suzhou University, Suzhou, 215123, People’s Republic of China

    Zheng Lei, Su Mingyu, Wu Xiao, Liu Chao, Qu Chunxiang, Chen Liang, Huang Hao, Liu Xiaoqing & Hong Fashui

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  1. Zheng Lei
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  2. Su Mingyu
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  3. Wu Xiao
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  4. Liu Chao
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  5. Qu Chunxiang
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  6. Chen Liang
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  7. Huang Hao
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  8. Liu Xiaoqing
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  9. Hong Fashui
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Corresponding author

Correspondence to Hong Fashui.

Additional information

An erratum to this article is available at http://dx.doi.org/10.1007/s12011-009-8426-6.

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Lei, Z., Mingyu, S., Xiao, W. et al. Effects of Nano-anatase on Spectral Characteristics and Distribution of LHCII on the Thylakoid Membranes of Spinach. Biol Trace Elem Res 120, 273–283 (2007). https://doi.org/10.1007/s12011-007-8025-3

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  • DOI: https://doi.org/10.1007/s12011-007-8025-3

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