Photosynthetic inner antenna CP47 plays important roles in ephemeral plants in adapting to high light stress

doi:10.1016/j.jplph.2020.153189

	Photosynthetic inner antenna CP47 plays important roles in ephemeral plants in adapting to high light stress
	Wu, Lishuan 1; Zhang, Lin 1; Tu, Wenfeng 2; Sun, Ruixue 3; Li, Fei 1; Lin, Yajun 1,4; Zhang, Yuanming 4; Liu, Cheng 1; Yang, Chunhong 1
	2020
发表期刊	JOURNAL OF PLANT PHYSIOLOGY
ISSN	0176-1617
卷号	251
摘要	Throughout 3.5 billion years of evolution, photosynthesis of land plants has developed a complicated antenna system to cope with the ever-changing environments. The antenna system of photosystem (PS) II includes the outer antennae and inner antennae. The inner antennae CP43 and CP47, located in the closest peripheral of PSII reaction center (RC), play important roles in facilitating excitation energy transport from the outer antennae to the PSII RC. Although PSII RC is the last station of energy transport, it is the inner antenna CP47, not the RC, which possesses the lowest energy level in PSII. Berteroa incana (B. incana), which is a vascular plant grown in the Gobi region, can sustain very high photosynthesis capacity under very high light conditions. It has been discovered that the thylakoid membrane of B. incana possesses a unique low fluorescence emission spectrum because the fluorescence emission of CP47 (695 nm) is the main fluorescence emission peak of PSII. In this paper, the thylakoid membrane, isolated from B. incana grown under a light condition of 100 mu M photons m(-2) s(-1) and subjected to high light treatment (1600 mu M photons m(-2) s(-1) for 1.5 h or 3 h) was employed for the research. It has been found that the high fluorescence emission of CP47 decreased remarkably upon exposure to the high light treatment. Further observation revealed that the drastic changes in the CP47 fluorescence emission were accompanied by a slight reduction in the amount of CP47 and an enhancement of the CP29-LHCII-CP24 as-sembly. It is proposed that CP47 enables the functional switch between the excitation energy transfer towards PSII RC, and the overexcitation quenching in the PSII core. Together with CP43, CP47 plays important roles in regulating excitation energy distribution in PSII core complexes.
关键词	Photosystem II CP47 Reaction center Excitation energy Photoprotection
学科领域	Plant Sciences
DOI	10.1016/j.jplph.2020.153189
收录类别	SCI
语种	英语
WOS关键词	EXCITATION-ENERGY TRANSFER ; HARVESTING COMPLEX II ; PHOTOSYSTEM-II ; LHCII SUPERCOMPLEX ; EXCITED-STATES ; CHLOROPHYLL ; FLUORESCENCE ; ACCLIMATION ; PHOSPHORYLATION ; REORGANIZATION
WOS研究方向	Plant Sciences
WOS记录号	WOS:000550297500003
出版者	ELSEVIER GMBH
文献子类	Article
出版地	MUNICH
EISSN	1618-1328
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570236, 31600192] ; National Key R&D Program of China [2017YFA0503701]
作者邮箱	liucheng@ibcas.ac.cn ; yangch@ibcas.ac.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/2S10CLM1/21673
专题	中科院北方资源植物重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Plant Resources, Beijing Bot Garden, Inst Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Qingdao Inst, Shanghai Inst Technol Phys, Qingdao 264000, Peoples R China 5.Chinese Acad Sci, Xinjiang Inst & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lishuan,Zhang, Lin,Tu, Wenfeng,et al. Photosynthetic inner antenna CP47 plays important roles in ephemeral plants in adapting to high light stress[J]. JOURNAL OF PLANT PHYSIOLOGY,2020,251.
APA	Wu, Lishuan.,Zhang, Lin.,Tu, Wenfeng.,Sun, Ruixue.,Li, Fei.,...&Yang, Chunhong.(2020).Photosynthetic inner antenna CP47 plays important roles in ephemeral plants in adapting to high light stress.JOURNAL OF PLANT PHYSIOLOGY,251.
MLA	Wu, Lishuan,et al."Photosynthetic inner antenna CP47 plays important roles in ephemeral plants in adapting to high light stress".JOURNAL OF PLANT PHYSIOLOGY 251(2020).

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