A Possible Mechanism for Aggregation-Induced Chlorophyll Fluorescence Quenching in Light-Harvesting Complex II from the Marine Green Alga Bryopsis corticulans

doi:10.1021/acs.jpcb.2c05823

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	A Possible Mechanism for Aggregation-Induced Chlorophyll Fluorescence Quenching in Light-Harvesting Complex II from the Marine Green Alga Bryopsis corticulans
	Yao, Hai-Dan ; Li, Dan-Hong ; Gao, Rong-Yao ; Zhou, Cuicui ; Wang, Wenda ; Wang, Peng ; Shen, Jian-Ren ; Kuang, Tingyun 10; Zhang, Jian-Ping
刊名	JOURNAL OF PHYSICAL CHEMISTRY B
	2022
卷号	126 期号:46 页码:9580-9590
ISSN号	1520-6106
DOI	10.1021/acs.jpcb.2c05823
文献子类	Article
英文摘要	The light-harvesting complex II of a green alga Bryopsis corticulans (B-LHCII) is peculiar in that it contains siphonein and siphonaxathin as carotenoid (Car). Since the S1 state of siphonein and siphonaxathin lies substantially higher than the Qy state of chlorophyll a (Chl a), the Chl a(Qy)-to-Car(S1) excitation energy transfer is unfeasible. To understand the photoprotective mechanism of algal photosynthesis, we investigated the influence of temperature on the excitation dynamics of B-LHCII in trimeric and aggregated forms. At room temperature, the aggregated form showed a 10-fold decrease in fluorescence intensity and lifetime than the trimeric form. Upon lowering the temperature, the characteristic 680 nm fluorescence (F-680) of B-LHCII in both forms exhibited systematic intensity enhancement and spectral narrowing; however, only the aggregated form showed a red emission extending over 690-780 nm (F-RE) with pronounced blueshift, lifetime prolongation, and intensity boost. The remarkable T- dependence of F-RE is ascribed to the Chl-Chl charge transfer (CT) species involved directly in the aggregation-induced Chl deactivation. The CT-quenching mechanism, which is considered to be crucial for B. corticulans photoprotection, draws strong support from the positive correlation of the Chl deactivation rate with the CT state population, as revealed by comparing the fluorescence dynamics of B-LHCII with that of the plant LHCII.
学科主题	Chemistry, Physical
电子版国际标准刊号	1520-5207
出版地	WASHINGTON
WOS关键词	PHOTOSYSTEM-II ; ENERGY-TRANSFER ; SPECTROSCOPIC PROPERTIES ; ABSORPTION-BAND ; MOLECULAR-BASIS ; IDENTIFICATION ; PLANTS ; SIPHONAXANTHIN ; CAROTENOIDS ; EXCITATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000885494500001
资助机构	National Key R&D Program of China [2021YFA1300403, 2019YFA0906300] ; Natural Science Foundation of China (NSFC) [22173115] ; Youth Innovation Promotion Association of CAS [2020081] ; CAS Interdisciplinary Innovation Team [JCTD-2020-06] ; CAS Project for Young Scientists in Basic Research [YSBR-004] ; CAS Key Research program for Frontier Science [QYZDY-SSW-SMC003]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28694]
专题	中科院光生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China 2.Okayama Univ, Res Inst Interdisciplinary Sci, Grad Sch Nat Sci & Technol, Okayama 7008530, Japan 3.[Yao, Hai-Dan 4.Li, Dan-Hong 5.Gao, Rong-Yao 6.Wang, Peng 7.Renmin Univ China, Dept Chem, Key Lab Adv Light Convers Mat & Biophoton, Beijing 100872, Peoples R China 8.[Zhou, Cuicui 9.Wang, Wenda 10.Shen, Jian-Ren
推荐引用方式 GB/T 7714	Yao, Hai-Dan,Li, Dan-Hong,Gao, Rong-Yao,et al. A Possible Mechanism for Aggregation-Induced Chlorophyll Fluorescence Quenching in Light-Harvesting Complex II from the Marine Green Alga Bryopsis corticulans[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2022,126(46):9580-9590.
APA	Yao, Hai-Dan.,Li, Dan-Hong.,Gao, Rong-Yao.,Zhou, Cuicui.,Wang, Wenda.,...&Zhang, Jian-Ping.(2022).A Possible Mechanism for Aggregation-Induced Chlorophyll Fluorescence Quenching in Light-Harvesting Complex II from the Marine Green Alga Bryopsis corticulans.JOURNAL OF PHYSICAL CHEMISTRY B,126(46),9580-9590.
MLA	Yao, Hai-Dan,et al."A Possible Mechanism for Aggregation-Induced Chlorophyll Fluorescence Quenching in Light-Harvesting Complex II from the Marine Green Alga Bryopsis corticulans".JOURNAL OF PHYSICAL CHEMISTRY B 126.46(2022):9580-9590.