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cf0 zhi zi chuan dao dui liang guang xi tong jian guang neng fen bu de ying xiang
Author(s): 
Pages: 678-685
Year: Issue:  6
Journal: Acta Biochimica et Biophysica Sinica

Keyword:  H ̄+-ATP酶复合体光能分布叶绿素荧光区域化质子TPT;
Abstract: 用饱和闪光法测定类囊体中叶绿素荧光猝灭。观察到作用于质子通道CF0的氯化三苯基锡促进qQ而降低qK,DCCD无此作用。在解联条件下或在高盐介质中TPT对qQ的促进作用消失;在H2O→PDox或H2O→PBQ电子传递系统中此促进作用方消失;用调制荧光法或低温荧光测定均表明TPT增加了两光系统间光能分布的不平衡,有利于光能在PSII的分布.即CFo质子传导具有调节两个光系统间光能分布的功能,而这可能是通过膜上区域化质子对光系统II光化学效率的影响来实现的.
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