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

doi:10.7517/j.issn.1674-0475.1993.01.35

Imaging Science and Photochemistry ›› 1993, Vol. 11 ›› Issue (1): 35-40.DOI: 10.7517/j.issn.1674-0475.1993.01.35

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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. 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

Abstract

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

XIA AN-DONG, ZHU JIN-CHANG, WU HUA-JU, JIANG LI-JIN, ZHANG XIN-YI. FLUORESCENCE LIFETIMES, QUANTUM YIELDS AND SPEC-TRAL PROPERTIES OF PHYCOBILIPROTEINS FROM BLUE-GREEN ALGA SPIRULINA PLATENSIS[J]. Imaging Science and Photochemistry, 1993, 11(1): 35-40.

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

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