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Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates

文献类型：期刊论文

作者Zhou, Lu1,2,3,4; Wu, Songcui1,3,4; Gu, Wenhui1,3,4; Wang, Lijun1,3,4; Wang, Jing1,3,4; Gao, Shan1,3,4; Wang, Guangce1,3,4
刊名BMC PLANT BIOLOGY
出版日期2021-04-01
卷号21期号:1页码:14
ISSN号1471-2229
关键词Diatoms Dinoflagellates Fluctuating light Pioneer bloom PGR5 Phaeodactylum tricornutum Phytoplankton bloom succession
DOI10.1186/s12870-021-02902-0
通讯作者Gao, Shan(shangao@qdio.ac.cn) ; Wang, Guangce(gcwang@qdio.ac.cn)
英文摘要Background Diatoms contribute 20% of the global primary production and are adaptable in dynamic environments. Diatoms always bloom earlier in the annual phytoplankton succession instead of dinoflagellates. However, how diatoms acclimate to a dynamic environment, especially under changing light conditions, remains unclear. Results We compared the growth and photosynthesis under fluctuating light conditions of red tide diatom Skeletonema costatum, red tide dinoflagellate Amphidinium carterae, Prorocentrum donghaiense, Karenia mikimotoi, model diatom Phaeodactylum tricornutum, Thalassiosira pseudonana and model dinoflagellate Dinophycae Symbiodinium. Diatoms grew faster and maintained a consistently higher level of photosynthesis. Diatoms were sensitive to the specific inhibitor of Proton Gradient Regulation 5 (PGR5) depending photosynthetic electron flow, which is a crucial mechanism to protect their photosynthetic apparatus under fluctuating light. In contrast, the dinoflagellates were not sensitive to this inhibitor. Therefore, we investigate how PGR5 functions under light fluctuations in the model diatom P. tricornutum by knocking down and overexpressing PGR5. Overexpression of PGR5 reduced the photosystem I acceptor side limitation (Y (NA)) and increased growth rate under severely fluctuating light in contrast to the knockdown of PGR5. Conclusion Diatoms acclimatize to fluctuating light conditions better than dinoflagellates. PGR5 in diatoms can regulate their photosynthetic electron flow and accelerate their growth under severe light fluctuation, supporting fast biomass accumulation under dynamic environments in pioneer blooms.
资助项目National Key R&D Program of China[2018YFD0901500] ; Key Deployment Project of the Centre for Ocean Mega-Research of Science ; Chinese Academy of Sciences[COMS2019Q02] ; Shandong Provincial RD Program[2018GHY115019] ; Distinguished Young Scientists Research Fund of the Key Laboratory of Experimental Marine Biology, the Chinese Academy of Sciences[KLEMB-DYS02] ; National Natural Science Foundation of China[41676157] ; National Natural Science Foundation of China[41976097]
WOS研究方向Plant Sciences
语种英语
出版者BMC
WOS记录号WOS:000636445800002
源URL[http://ir.qdio.ac.cn/handle/337002/170479]  
专题海洋研究所_实验海洋生物学重点实验室
通讯作者Gao, Shan; Wang, Guangce
作者单位1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Lu,Wu, Songcui,Gu, Wenhui,et al. Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates[J]. BMC PLANT BIOLOGY,2021,21(1):14.
APA Zhou, Lu.,Wu, Songcui.,Gu, Wenhui.,Wang, Lijun.,Wang, Jing.,...&Wang, Guangce.(2021).Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates.BMC PLANT BIOLOGY,21(1),14.
MLA Zhou, Lu,et al."Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates".BMC PLANT BIOLOGY 21.1(2021):14.

入库方式： OAI收割

来源：海洋研究所

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