Quenching of the fluorescence emitted by P695-682 at room temperature in etiolated illuminated leaves |
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Authors: | M. Jouy C. Sironval |
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Affiliation: | (1) Laboratory of Photobiology, The University, Sart-Tilman, B-4000 Liège, Belgium |
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Abstract: | Chlorophyll(ide) fluorescence emission decreases at room temperature during completion of protochlorophyll(ide) reduction. The process responsible for this quenching is parallel to the P688-676 P695-682 transition. It proceeds equally well in darkness and in the light. It consists in a decrease of the fluorescence yield of chlorophyll(ide) in P695-682. Apparently, room temperature P695-682 fluorescence is regulated by a conjunction of factors such as energy transfers and photobiochemical activities.Abbreviations NADP nicotinamide-adenine dinucleotide phosphate - CPI chlorophyll-protein-complex I - CPII chlorophyll-protein-complex IIAspirant du Fond National de la Recherche Scientifique, Belgium |
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Keywords: | Protochlorophyllide-chlorophyllide-fluorescence Fluorescence quenching |
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