IB-CAS  > 中科院北方资源植物重点实验室
Neoxanthin affects the stability of the C2S2M2-type photosystem II supercomplexes and the kinetics of state transition in Arabidopsis
Tu, Wenfeng; Wu, Lishuan1,2; Zhang, Chunyan; Sun, Ruixue3; Wang, Liangsheng1,2; Yang, Wenqiang2; Yang, Chunhong1,2; Liu, Cheng1,2
2020
Source PublicationPLANT JOURNAL
ISSN0960-7412
Volume104Issue:6Pages:1724-1735
AbstractNeoxanthin (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.
KeywordPSII‐ LHCII supercomplexes neoxanthin M‐ LHCII minor antenna proteins state transition phosphorylation
Subject AreaPlant Sciences
DOI10.1111/tpj.15033
Indexed BySCI
Language英语
WOS KeywordLIGHT-HARVESTING-COMPLEX ; OXYGEN-EVOLVING COMPLEX ; SUPRAMOLECULAR ORGANIZATION ; PHOTOSYNTHETIC ACCLIMATION ; BINDING-SITE ; PHOSPHORYLATION SITE ; THYLAKOID MEMBRANES ; PROTEIN COMPLEXES ; STRUCTURAL BASIS ; GRANA MEMBRANES
WOS Research AreaPlant Sciences
WOS IDWOS:000587885200001
PublisherWILEY
SubtypeArticle
Publication PlaceHOBOKEN
EISSN1365-313X
Funding OrganizationNational Key R&D Program of China [2017YFA0503701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600192, 31570236]
Corresponding Author Emailliucheng@ibcas.ac.cn
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/21525
Collection中科院北方资源植物重点实验室
Affiliation1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing Bot Garden, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Qingdao Inst, Shanghai Inst Technol Phys, Qingdao 264000, Peoples R China
Recommended Citation
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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