Photosynthetica, 2004 (vol. 42), issue 3

Photosynthetica 2004, 42(3):465-467 | DOI: 10.1023/B:PHOT.0000046167.74045.66

Temperature-Dependent Decay-Associated Fluorescence Spectra in Phycobilisome-Thylakoid Membrane Complexes from Spirulina platensis

Y. Li1, Z. Y. Sun1, X. C. Ai1, J. Q. Zhao1, X. K. Zhang1
1 The Key Laboratory of Photochemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, China

The kinetic component (39 ps) for the energy transfer from a phycobilisome (PBS) to the photosystems was temperature-dependent while the components related to the kinetic processes within PBS, photosystem 2 (PS2) or PS1 were temperature-independent. The 39 ps component possessed the amplitude maximum at 647 nm but the minimum at 715 nm (room temperature) or 685 nm (0 °C), suggesting a direct energy transfer from C-phycocyanin to PS1 at room temperature but to PS2 at 0 °C. The temperature-induced kinetic change originated from a position shift of PBS along the thylakoid membrane.

Keywords: cyanobacterium; photosystems 1 and 2

Published: September 1, 2004Show citation

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Li, Y., Sun, Z.Y., Ai, X.C., Zhao, J.Q., & Zhang, X.K. (2004). Temperature-Dependent Decay-Associated Fluorescence Spectra in Phycobilisome-Thylakoid Membrane Complexes from Spirulina platensis. Photosynthetica, 42(3), 465-467. doi: 10.1023/B:PHOT.0000046167.74045.66.
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