Light induced calcium binding to mangrove PS II particles

FEBS Letters

Critchley, Christa¹  Bygrave, Fyfe L.²  Altin, Joseph G.²  Preston, Christopher¹ 

[1] Botany Department, The Faculties, Australian National University, GPO Box 4, Canberra, ACT 2601, Australia;Department of Biochemistry, The Faculties, Australian National University, GPO Box 4, Canberra, ACT 2601, Australia

关键词: Ca2+;    Oxygen evolution;    Photosystem II;    AMPD;    2-amino-2-methyl-1;    3-propanediol;    Chl;    chlorophyll;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;    LiDS-PAGE;    lithium dodecylsulphate-polyacrylamide gel electrophoresis;    Mes;    4-morpholineethanesulfonic acid;    PBQ;    phenyl-p-benzoquinone;    PS II;    photosystem II;   

DOI  :  10.1016/0014-5793(87)81291-7

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

A combination calcium selective and oxygen electrode system was used to measure the Ca²⁺ and O₂ concentrations of a solution surrounding mangrove PS II particles. Concomitant uptake of Ca²⁺ and oxygen evolution in the light were observed. The Ca²⁺ bound during the light was released in a subsequent dark period. The Ca²⁺ binding was dependent on both chlorophyll and Ca²⁺ concentrations. Up to 3000 Ca²⁺ were calculated to be bound per reaction centre.

【 授权许可】

Unknown