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Int. J. Mol. Sci. 2016, 17(6), 978; doi:10.3390/ijms17060978

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

1
Coherent Light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun 130012, China
2
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)
View Full-Text   |   Download PDF [1417 KB, uploaded 21 June 2016]   |  

Abstract

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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