Stimulation of a cyclic electron‐transfer pathway around photosystem II by phosphorylation of chloroplast thylakoid proteins

FEBS Letters

Horton, Peter¹  Lee, Pam¹ 

[1] Department of Biochemistry and ARC Research Group on Photosynthesis, The University, Sheffield S10 2TN, England

关键词: Photosynthesis;    Chloroplast;    Protein phosphorylation;    Thylakoid;    Photosystem;    Chlorophyll fluorescence;    PSII;    photosystem II;    PSI;    photosystem I;    Q;    the primary acceptor of PSII whose redox state controls the yield of fluorescence;    F o;    the level of fluorescence when Q is oxidised;    F mv;    F m-F o;    the variable fluorescence;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;    LHC-II;    the light harvesting complex associated with PSII;   

DOI  :  10.1016/0014-5793(83)81053-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Fluorescence induction kinetics of phosphorylated and unphosphorylated chloroplast thylakoid membranes have been studied under low light intensity. Hydroxylamine is able to enhance the fluorescence yield to a greater extent in phosphorylated membranes in both the presence and absence of DCMU. Examination of the light intensity dependence of the fluorescence yields leads to the conclusion that protein phosphorylation enhances the efficiency of a NH₂OH-sensitive cyclic electron-transfer pathway around photosystem II.

【 授权许可】

Unknown