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Quenching of the fluorescence emitted by P695-682 at room temperature in etiolated illuminated leaves

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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.

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Abbreviations

NADP:

nicotinamide-adenine dinucleotide phosphate

CPI:

chlorophyll-protein-complex I

CPII:

chlorophyll-protein-complex II

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Authors and Affiliations

  1. Laboratory of Photobiology, The University, Sart-Tilman, B-4000, Liège, Belgium

    M. Jouy & C. Sironval

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  1. M. Jouy
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  2. C. Sironval
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Aspirant du Fond National de la Recherche Scientifique, Belgium

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Jouy, M., Sironval, C. Quenching of the fluorescence emitted by P695-682 at room temperature in etiolated illuminated leaves. Planta 147, 127–133 (1979). https://doi.org/10.1007/BF00389512

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  • DOI: https://doi.org/10.1007/BF00389512

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