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Int. J. Mol. Sci. 2016, 17(6), 978;

The Chlorophyll a Fluorescence Modulated by All-Trans-β-Carotene in the Process of Photosystem II

Coherent Light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun 130012, China
College of Plant Science, Jilin University, Changchun 130062, China
Author to whom correspondence should be addressed.
Academic Editor: Dr.-Habil. Mihai V. Putz
Received: 11 May 2016 / Revised: 8 June 2016 / Accepted: 16 June 2016 / Published: 21 June 2016
(This article belongs to the Special Issue Chemical Bond and Bonding 2016)
Full-Text   |   PDF [1417 KB, uploaded 21 June 2016]   |  


Modulating the chlorophyll a (Chl-a) fluorescence by all-trans-β-Carotene (β-Car) in the polarity and non-polarity solutions was investigated. The fluorescence intensity of Chl-a decreased as the concentration of β-Car increased. The excited electronic levels of Chl-a and β-Car became much closer owing to the solvent effect, which led to the electron transfer between both two molecules. A electron-separated pair Chl·Chl+ that is not luminous was formed due to electron transfer. The solution of Chl-a and β-car in C3H6O was similar to the internal environment of chloroplast. We conclude that the polar solvent is good for the fluorescent modulation in photosystem II. View Full-Text
Keywords: chlorophyll a; fluorescence; all-trans-β-carotene; electron transfer chlorophyll a; fluorescence; all-trans-β-carotene; electron transfer

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Li, T.; Zhang, Y.; Gong, N.; Li, Z.; Sun, C.; Men, Z. The Chlorophyll a Fluorescence Modulated by All-Trans-β-Carotene in the Process of Photosystem II. Int. J. Mol. Sci. 2016, 17, 978.

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