Neoxanthin affects the stability of the C2S2M2-type photosystem II supercomplexes and the kinetics of state transition in Arabidopsis
Tu, Wenfeng; Wu, Lishuan1,4; Zhang, Chunyan; Sun, Ruixue2; Wang, Liangsheng1,4; Yang, Wenqiang4; Yang, Chunhong1,4; Liu, Cheng1,4
刊名PLANT JOURNAL
2020
卷号104期号:6页码:1724-1735
关键词PSII‐ LHCII supercomplexes neoxanthin M‐ LHCII minor antenna proteins state transition phosphorylation
ISSN号0960-7412
DOI10.1111/tpj.15033
文献子类Article
英文摘要Neoxanthin (Neo), which is only bound to the peripheral antenna proteins of photosystem (PS) II, is a conserved carotenoid in all green plants. It has been demonstrated that Neo plays an important role in photoprotection and its deficiency fails to impact LHCII stability in vitro and indoor plant growth in vivo. Whether Neo is involved in maintaining the PSII complex structure or adaptive mechanisms for the everchanging environment has not yet been elucidated. In this study, the role of Neo in maintaining the structure and function of the PSII-LHCII supercomplexes was studied using Neo deficient Arabidopsis mutants. Our results show that Neo deficiency had little effect on the electron transport capacity and the plant fitness, but the PSII-LHCII supercomplexes were significantly impacted by the lack of Neo. In the absence of Neo, the M-type LHCII trimer cannot effectively associate with the C2S2-type PSII-LHCII supercomplexes even in moderate light conditions. Interestingly, Neo deficiency also leads to decreased PSII protein phosphorylation but rapid transition from state 1 to state 2. We suggest that Neo might enforce the interactions between LHCII and the minor antennas and that the absence of Neo makes M-type LHCII disassociate from the PSII complex, leading to the disassembly of the PSII-LHCII C2S2M2 supercomplexes, which results in alterations in the phosphorylation patterns of the thylakoid photosynthetic proteins and the kinetics of state transition.
学科主题Plant Sciences
电子版国际标准刊号1365-313X
出版地HOBOKEN
WOS关键词LIGHT-HARVESTING-COMPLEX ; OXYGEN-EVOLVING COMPLEX ; SUPRAMOLECULAR ORGANIZATION ; PHOTOSYNTHETIC ACCLIMATION ; BINDING-SITE ; PHOSPHORYLATION SITE ; THYLAKOID MEMBRANES ; PROTEIN COMPLEXES ; STRUCTURAL BASIS ; GRANA MEMBRANES
WOS研究方向Plant Sciences
语种英语
出版者WILEY
WOS记录号WOS:000587885200001
资助机构National Key R&D Program of China [2017YFA0503701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600192, 31570236]
内容类型期刊论文
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/21525]  
专题中科院北方资源植物重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Qingdao Inst, Shanghai Inst Technol Phys, Qingdao 264000, Peoples R China
4.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing Bot Garden, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714
Tu, Wenfeng,Wu, Lishuan,Zhang, Chunyan,et al. Neoxanthin affects the stability of the C2S2M2-type photosystem II supercomplexes and the kinetics of state transition in Arabidopsis[J]. PLANT JOURNAL,2020,104(6):1724-1735.
APA Tu, Wenfeng.,Wu, Lishuan.,Zhang, Chunyan.,Sun, Ruixue.,Wang, Liangsheng.,...&Liu, Cheng.(2020).Neoxanthin affects the stability of the C2S2M2-type photosystem II supercomplexes and the kinetics of state transition in Arabidopsis.PLANT JOURNAL,104(6),1724-1735.
MLA Tu, Wenfeng,et al."Neoxanthin affects the stability of the C2S2M2-type photosystem II supercomplexes and the kinetics of state transition in Arabidopsis".PLANT JOURNAL 104.6(2020):1724-1735.
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