Protection of reaction center II from photodamage by low temperature and anaerobiosis in spinach chloroplasts

FEBS Letters

Kirilovsky, Diana²  Etienne, Anne-Lisc¹ 

[1] UPR 407, Bät. 24, CNRS, 91198 Gif sur Yvette, France;Section de Bioènergètique, Dèpartement de Biologie Cellulaire et Molèculaire, URA 1290, CNRS, CEN-Saclay, 91191 Gif sur Yvette France

关键词: Photoinhibition;    Photosystem II;    D1 protein;    Anacrobiosis;    Chl;    chlorophyll;    F o;    F v;    F max;    initial;    variable and maximum fluorescence;    PSII;    Photosystem II;    Pheo;    pheophytin;    QA and QB;    primary and secondary quinone electron acceptors;    RCII;    reaction center II;   

DOI  :  10.1016/0014-5793(91)80149-W

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The rate of the irreversible damage to the reaction center II, caused by exposure of spinach thylakoids to high light was slowed down by anacroble conditions and by lowering the temperature. The protective mechanisms of these conditions were different. In both cases F _max decreased more slowly than in control photoinhibition. A reversible intermediate step was only observed under unacrobic conditions. This state was inactive for oxygen evolution and it was characterized by an increase of F _v.

【 授权许可】

Unknown