Architecture and energy transfer of coccolithophore photosystem I with a huge light-harvesting antenna system.
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| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Science advances
2025
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| _version_ | 1868266108351414272 |
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| author | Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng |
| author_facet | Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng |
| collection | PubMed - marine biology |
| contents | Architecture and energy transfer of coccolithophore photosystem I with a huge light-harvesting antenna system. Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng Photosystem I Protein Complex Light-Harvesting Protein Complexes Energy Transfer Haptophyta Photosynthesis Chlorophyll Cryoelectron Microscopy Models, Molecular Coccolithophores play important roles in global biogeochemical cycles and climate change and are characterized by their cell surfaces covered with calcium carbonate coccoliths. Their capacity to thrive in dynamic marine ecosystems is underpinned by efficient photosynthetic adaptation. Here, we elucidated the structure of a photosystem I-light-harvesting complex I (PSI-LHCI) supercomplex from coccolithophore by cryo-electron microscopy, ultrafast spectroscopy, and computational simulations. The PSI core is encircled by 35 LHCIs that are organized in six layers with repetitive, fiber-like arrangements, forming a giant PSI-LHCI supercomplex. Increased levels of chlorophylls c and carotenoids in LHCIs enhance the absorption of blue/green light. Time-resolved spectral analysis and computational simulations both revealed that the large number of pigments forms an extensive pigment network, ensuring efficient energy transfer from peripheral LHCIs to the PSI core. Our study provides insights into the assembly and energy transfer of coccolithophore PSI-LHCI and delineates the evolutionary variation of red-lineage PSI-LHCIs. |
| format | Artículo científico |
| id | pubmed_41417906 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Science advances |
| record_format | pubmed |
| spellingShingle | Architecture and energy transfer of coccolithophore photosystem I with a huge light-harvesting antenna system. Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng Photosystem I Protein Complex Light-Harvesting Protein Complexes Energy Transfer Haptophyta Photosynthesis Chlorophyll Cryoelectron Microscopy Models, Molecular Architecture and energy transfer of coccolithophore photosystem I with a huge light-harvesting antenna system. Sun, Xiao-Meng Li, Kang He, Fei-Yu Wang, Hao-Jie Chen, Hai-Long Wen, Quan Liu, He-Yuan Zhao, Fang Chen, Xiu-Lan Weng, Yu-Xiang Gao, Jun Liu, Lu-Ning Zhang, Yu-Zhong Zhao, Long-Sheng Photosystem I Protein Complex Light-Harvesting Protein Complexes Energy Transfer Haptophyta Photosynthesis Chlorophyll Cryoelectron Microscopy Models, Molecular Coccolithophores play important roles in global biogeochemical cycles and climate change and are characterized by their cell surfaces covered with calcium carbonate coccoliths. Their capacity to thrive in dynamic marine ecosystems is underpinned by efficient photosynthetic adaptation. Here, we elucidated the structure of a photosystem I-light-harvesting complex I (PSI-LHCI) supercomplex from coccolithophore by cryo-electron microscopy, ultrafast spectroscopy, and computational simulations. The PSI core is encircled by 35 LHCIs that are organized in six layers with repetitive, fiber-like arrangements, forming a giant PSI-LHCI supercomplex. Increased levels of chlorophylls c and carotenoids in LHCIs enhance the absorption of blue/green light. Time-resolved spectral analysis and computational simulations both revealed that the large number of pigments forms an extensive pigment network, ensuring efficient energy transfer from peripheral LHCIs to the PSI core. Our study provides insights into the assembly and energy transfer of coccolithophore PSI-LHCI and delineates the evolutionary variation of red-lineage PSI-LHCIs. |
| title | Architecture and energy transfer of coccolithophore photosystem I with a huge light-harvesting antenna system. |
| topic | Photosystem I Protein Complex Light-Harvesting Protein Complexes Energy Transfer Haptophyta Photosynthesis Chlorophyll Cryoelectron Microscopy Models, Molecular |
| url | https://pubmed.ncbi.nlm.nih.gov/41417906/ |