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Article

Time-Resolved Fluorescence Spectroscopy Study of Energy Transfer Dynamics in Phycobilisomes from Cyanobacteria Thermosynechococcus vulcanus NIES 2134 and Synechocystis sp. PCC 6803

by
Mingyuan Xie
1,2,†,
Wenjun Li
3,4,†,
Chao Xiao
1,†,
Zhanghe Zhen
3,
Jianfei Ma
5,
Hanzhi Lin
6,
Song Qin
3,4,* and
Fuli Zhao
1,*
1
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, China
2
Institute of Advanced Science Facilities, Shenzhen 518107, China
3
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
4
Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
5
State Key Laboratory of Membrane Biology, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
6
Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD 21202, USA
*
Authors to whom correspondence should be addressed.
†
These authors contribute equally.
Crystals 2021, 11(10), 1233; https://doi.org/10.3390/cryst11101233
Submission received: 27 August 2021 / Revised: 27 September 2021 / Accepted: 12 October 2021 / Published: 13 October 2021
(This article belongs to the Special Issue Structure and Energy Transfer of Algae Photosynthetic Antenna Organism Crystals)
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Abstract

As the largest light-harvesting complex in cyanobacteria, phycobilisomes (PBSs) show high efficiency and a high rate of energy transfer, owing to an elegant antenna-like assembly. To understand the structural influence on the dynamic process of the energy transfer in PBSs, two cyanobacterium species Thermosynechococcus vulcanus NIES 2134 (T. 2134) and Synechocystis sp. PCC 6803 (S. 6803) with different rod–core-linked assemblies were chosen for this study. The dynamic process of the energy transfer in both PBSs was investigated through time-resolved fluorescence spectroscopy (TRFS) with a time resolution of sub-picosecond. Via the fluorescence decay curves deconvolution, the pathways and related rates of the excitation energy transfer (EET) were determined. Three time components, i.e., 10, 80, and 1250 ps, were identified in the EET in the PBSs of T. 2134 and three, i.e., 9, 115, and 1680 ps, in the EET in the PBSs of S. 6803. In addition, a comparison of the dynamic process of the energy transfer between the two cyanobacteria revealed how the PBS assembly affects the energy transfer in PBSs. The findings will provide insight into future time-resolved crystallography.
Keywords: phycobilisomes; cyanobacteria; time-resolved fluorescence spectroscopy; energy transfer phycobilisomes; cyanobacteria; time-resolved fluorescence spectroscopy; energy transfer

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MDPI and ACS Style

Xie, M.; Li, W.; Xiao, C.; Zhen, Z.; Ma, J.; Lin, H.; Qin, S.; Zhao, F. Time-Resolved Fluorescence Spectroscopy Study of Energy Transfer Dynamics in Phycobilisomes from Cyanobacteria Thermosynechococcus vulcanus NIES 2134 and Synechocystis sp. PCC 6803. Crystals 2021, 11, 1233. https://doi.org/10.3390/cryst11101233

AMA Style

Xie M, Li W, Xiao C, Zhen Z, Ma J, Lin H, Qin S, Zhao F. Time-Resolved Fluorescence Spectroscopy Study of Energy Transfer Dynamics in Phycobilisomes from Cyanobacteria Thermosynechococcus vulcanus NIES 2134 and Synechocystis sp. PCC 6803. Crystals. 2021; 11(10):1233. https://doi.org/10.3390/cryst11101233

Chicago/Turabian Style

Xie, Mingyuan, Wenjun Li, Chao Xiao, Zhanghe Zhen, Jianfei Ma, Hanzhi Lin, Song Qin, and Fuli Zhao. 2021. "Time-Resolved Fluorescence Spectroscopy Study of Energy Transfer Dynamics in Phycobilisomes from Cyanobacteria Thermosynechococcus vulcanus NIES 2134 and Synechocystis sp. PCC 6803" Crystals 11, no. 10: 1233. https://doi.org/10.3390/cryst11101233

APA Style

Xie, M., Li, W., Xiao, C., Zhen, Z., Ma, J., Lin, H., Qin, S., & Zhao, F. (2021). Time-Resolved Fluorescence Spectroscopy Study of Energy Transfer Dynamics in Phycobilisomes from Cyanobacteria Thermosynechococcus vulcanus NIES 2134 and Synechocystis sp. PCC 6803. Crystals, 11(10), 1233. https://doi.org/10.3390/cryst11101233

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