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

doi:10.1186/s12870-021-02902-0

IOCAS-IR > 实验海洋生物学重点实验室

	Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates
	Zhou, Lu 1,2,3,4; Wu, Songcui1,2,3 ; Gu, Wenhui 1,2,3; Wang, Lijun 1,2,3; Wang, Jing 1,2,3; Gao, Shan 1,2,3; Wang, Guangce 1,2,3
	2021-04-01
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	21 期号:1 页码:14
通讯作者	Gao, Shan(shangao@qdio.ac.cn) ; Wang, Guangce(gcwang@qdio.ac.cn)
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.
关键词	Diatoms Dinoflagellates Fluctuating light Pioneer bloom PGR5 Phaeodactylum tricornutum Phytoplankton bloom succession
DOI	10.1186/s12870-021-02902-0
收录类别	SCI
语种	英语
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
WOS类目	Plant Sciences
WOS记录号	WOS:000636445800002
出版者	BMC
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/170480
专题	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.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
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.

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