Oxidation of QA − and of QB − of photosynthetic reaction centers by an artificial acceptor

FEBS Letters

Agalidis, Ileana¹  Velthuys, Bruno R.¹ 

[1]Laboratoire de Photosynthèse, CNRS, 91190 Gif-sur-Yvette, France

关键词: Reaction center (Rps. sphaeroides) Photosystem II Quinone reduction N;    N;    N';    N'-Tetramethyl-p-phenylenediamine;    TMPD;    N;    N;    N';    N'-tetramethyl-p-phenylenediamine;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;    Caps;    3-(cyclohexylamino)propanesulfonic acid;    Mes;    2-(N-morpholino)ethanesulfonic acid;    LDAO;    lauryldimethylamine N-oxide;    PS;    photosystem;   

DOI  :  10.1016/0014-5793(86)80339-8

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Bacterial reaction centers and photosystem II particles reduce N,N,N',N'-tetramethyl-p-phenylenediamine with a rate constant that depends on the state of the acceptor complex. We assume interference by detergent to explain the dissimilar behavior of the two types of material. Using this assumption, we summarize: QA (with an empty QB site) is more reactive than Q_A ⁻·X (with an occupied Q_B site; X = quinone, herbicide, or, we assume, detergent). Q_A ⁻·X is more reactive than Q_A·_B ⁻.

【 授权许可】

Unknown