Journal of Photoscience
- Volume 9 Issue 2
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- Pages.359-361
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- 2002
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- 1225-8555(pISSN)
Study on the Excited Energy Transfer in Light-harvesting Complex (LH2) of Rhodobacter sphaeroides
- Liu, Yuan (lnstitute of Plant Physiology, SIBS, CAS) ;
- Guo, Lijun (physics Department of Fudan University) ;
- Qian, Shixiong (physics Department of Fudan University) ;
- Xu, Chunhe (lnstitute of Plant Physiology, SIBS, CAS)
- Published : 2002.08.01
Abstract
A green mutant of Rhodobacter sphaeroides 60I was acquired by chemical induction. The blue-shifted of the carotenoid absorption was found in the Light-harvesting complex II (LH2) of the mutant. With the excitation at different wavelength, we observed that the evolution of excited-state dynamics in LH2 of Rhodobacter sphaeroides 60I. The dynamical traces demonstrate a dominant absorption followed concomitantly by an ultrafast transmission increase and decay with 818nm excitation.