Carotenoid Single-Molecular Singlet Fission and thePhotoprotection of a Bacteriochlorophyllb-Type Core Light-Harvesting Antenna

doi:10.1021/acs.jpclett.2c00519

IB-CAS > 中科院光生物学重点实验室

	Carotenoid Single-Molecular Singlet Fission and thePhotoprotection of a Bacteriochlorophyllb-Type Core Light-Harvesting Antenna
	Yu, Long-Jiang; Zhang, Jian-Ping ; Zhang, Yan ; Qi, Chen-Hui ; Yamano, Nami ; Wang, Peng 3; Wang-Otomo, Zheng-Yu
	2022
发表期刊	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN	1948-7185
卷号	13 期号:16 页码:3534-3541
摘要	Carotenoid (Car) in photosynthesis plays the major roles of accessarylight harvesting and photoprotection, and the underlying structure-functionrelationship attracts continuing research interests. We have attempted to explorethe dynamics of Car triplet excitation (3Car) in the bacteriochlorophyllb(BChlb)-type light harvesting reaction center complex (LH1-RC) of photosynthetic bacteriumHalorhodospira halochloris. We show that the LH1 antenna binds a single Car that wasidentified as a lycopene derivative. Although the Car is hardly visible in the LH1-RCstationary absorption, it shows up conspicuously in the triplet excitation profile withdistinct vibronic features. This and the ultrafast formation of3Caron directphotoexcitation of Car unequivocally manifest the unimolecular singletfission reactionof the Car. Moreover, the Car with even one molecule per complex is found to berather effective in quenching3BChlb. The implications of different3Carformationmechanisms are discussed, and the self-photoprotection role of BChlbare proposedfor this extremophilic species.
学科领域	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
DOI	10.1021/acs.jpclett.2c00519
收录类别	SCI
语种	英语
WOS关键词	ENERGY-TRANSFER ; ALL-TRANS ; STATE ; COMPLEXES ; MECHANISM ; BACTERIUM ; LYCOPENE ; PHOTOPROTECTION ; EXCITATIONS ; ABSORPTION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000795879200002
出版者	AMER CHEMICAL SOC
文献子类	Article
出版地	WASHINGTON
资助机构	Natural Science Foundation of China (NSFC) [22173115, 32070264, 22003075] ; National Key R&D Program of China [2019YFA0904600] ; CAS Key Research program for Frontier Science [QYZDY-SSW-SMC003]
作者邮箱	longer@ibcas.ac.cn ; jpzhang@ruc.edu.cn
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28600
专题	中科院光生物学重点实验室
作者单位	1.[Zhang, Jian-Ping 2.Zhang, Yan 3.Yamano, Nami 4.Renmin Univ China, Dept Chem, Key Lab Adv Light Convers Mat & Biophoton, Beijing 1000872, Peoples R China 5.[Yu, Long-Jiang 6.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Photosynthesis Res Ctr, Beijing 100093, Peoples R China 7.Ibaraki Univ, Fac Sci, Mito, Ibaraki 3108512, Japan
推荐引用方式 GB/T 7714	Yu, Long-Jiang,Zhang, Jian-Ping,Zhang, Yan,et al. Carotenoid Single-Molecular Singlet Fission and thePhotoprotection of a Bacteriochlorophyllb-Type Core Light-Harvesting Antenna[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2022,13(16):3534-3541.
APA	Yu, Long-Jiang.,Zhang, Jian-Ping.,Zhang, Yan.,Qi, Chen-Hui.,Yamano, Nami.,...&Wang-Otomo, Zheng-Yu.(2022).Carotenoid Single-Molecular Singlet Fission and thePhotoprotection of a Bacteriochlorophyllb-Type Core Light-Harvesting Antenna.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,13(16),3534-3541.
MLA	Yu, Long-Jiang,et al."Carotenoid Single-Molecular Singlet Fission and thePhotoprotection of a Bacteriochlorophyllb-Type Core Light-Harvesting Antenna".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 13.16(2022):3534-3541.

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