影像科学与光化学 ›› 1993, Vol. 11 ›› Issue (1): 35-40.DOI: 10.7517/j.issn.1674-0475.1993.01.35

• 研究论文 • 上一篇    下一篇

螺旋藻藻胆蛋白的荧光寿命、量子产率及其光谱学特性

夏安东1, 朱晋昌1, 伍华菊1, 蒋丽金1, 张新夷2   

  1. 1. 中国科学院感光化学所 北京 100101;
    2. 中国科学院长春物理所激发态物理开放研究实验室 长春 130021
  • 收稿日期:1992-01-07 修回日期:1992-03-10 出版日期:1993-02-20 发布日期:1993-02-20
  • 通讯作者: 蒋丽金

FLUORESCENCE LIFETIMES, QUANTUM YIELDS AND SPEC-TRAL PROPERTIES OF PHYCOBILIPROTEINS FROM BLUE-GREEN ALGA SPIRULINA PLATENSIS

XIA AN-DONG1, ZHU JIN-CHANG1, WU HUA-JU1, JIANG LI-JIN1, ZHANG XIN-YI2   

  1. 1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. R. China;
    2. Laboratory of Excited Stale Physics, Changchun Institute of Physics, Academia Sinica, Changchun 130021, P. R. China
  • Received:1992-01-07 Revised:1992-03-10 Online:1993-02-20 Published:1993-02-20

摘要: 具有不同聚集态的藻胆蛋白有着不同的摩尔消光系数。这些聚集态决定了引起各藻胆蛋白之间光谱特性差别的藻蓝胆素发色团的构象。研究结果表明,在高聚态的C-藻蓝蛋白和变藻蓝蛋白中,由蛋白质——发色团之间相互作用调制的发色团的构象,对太阳能的吸收和激发能转移到光合反应中心的过程可能有重要作用。

关键词: C-藻蓝蛋白, 变藻蓝蛋白, 荧光寿命, 量子产率

Abstract: Phycobiliproteins with different aggregations have different molar excitinction coefficients. The assembling states lead to the different conformations of phycocyanobilins chromophores in C-phycocyanin and allophycocyanin which cause different spectral properties. As a result, on the higher aggregations for C-phycocyanin and allophycocyanin, the conformations of phy-cocyanobilin chromophores modulated through protein-chromophore interaction may play an important role in solar energy harvesting and excitation energy migration from these antenna proteins to photosynthetic reaction centers.

Key words: C-phycocyanin, allophycocyanin, fluorescence lifetime, quantum yield