Molecular insights into nitrogen constraint for niche partitioning and physiological adaptation of coastal<i> Synechococcus</i> assemblages

doi:10.1016/j.envres.2023.117383

	Molecular insights into nitrogen constraint for niche partitioning and physiological adaptation of coastal Synechococcus assemblages
	Wang, Ting 1,2; Zhou, Yuting 1; Li, Jialin1 ; Qin, Song1
发表期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
	2023-12-15
卷号	239 页码:11
关键词	Picocyanobacteria Coastal eutrophicated status Nitrogen Genomics and metatranscriptomics analyses Carbon neutrality
DOI	10.1016/j.envres.2023.117383
通讯作者	Li, Jialin([email protected]) ; Qin, Song([email protected])
英文摘要	Coastal nitrogen input has substantially increased due to human activity. However, much remains unknown about the nitrogen-driven patterns and the underlying genetic basis of coastal picoplankton. To investigate the response and mechanisms of picoplankton induced by nitrogen variation, we conducted in-situ investigations using high-throughput sequencing in the Bohai Sea and performed laboratory nitrogen simulation experiments accompanied by physiological, genomic, and transcriptomic analyses, with Synechococcus as a representative. The results of in-situ investigation revealed that Synechococcus clades I, III, WPC1, and VI of subcluster 5.1 (S5.1) are prevalent in strait areas characterized by robust water exchange with the North Yellow Sea, while clades II, VIII, and IX of S5.1, as well as subcluster 5.2 (S5.2) and subcluster 5.3 (S5.3) are more abundant in central and bay areas experiencing elevated nitrate and nitrite loads. The laboratory experiments further confirmed that inorganic nitrogen is a crucial determinant of diversity and niche partitioning of Synechococcus lineages. Besides, the raising inorganic nitrogen concentration within the current in-situ range (0.1-10 mu mol L-1) enhances photosynthesis and carbon fixation of Synechococcus, however further escalation of inorganic nitrogen (100 mu mol L-1) may hinder these processes instead. The phenomenon could be associated with the differential expression of genes in metabolic pathways regulating nitrogen metabolism, photosynthetic system II, and photosynthesisantenna proteins in response to nitrogen concentration and type variation. These findings expand our understanding of the impact of macronutrient variation resulting from human activities on marine picoplankton and biogeochemical cycles.
资助机构	National Natural Science Foundation of China ; seed project of Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	PEARL RIVER ESTUARY ; BOHAI SEA ; PHYLOGENETIC DIVERSITY ; GENE-EXPRESSION ; CHINA ; ABUNDANCE ; PHYTOPLANKTON ; WATERS ; CYANOBACTERIA ; DYNAMICS
研究领域[WOS]	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS记录号	WOS:001098052800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36663
专题	海岸带生物学与生物资源利用重点实验室海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
通讯作者	Li, Jialin; Qin, Song
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resource Utilizat, Yantai 264003, Peoples R China 2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ting,Zhou, Yuting,Li, Jialin,et al. Molecular insights into nitrogen constraint for niche partitioning and physiological adaptation of coastal Synechococcus assemblages[J]. ENVIRONMENTAL RESEARCH,2023,239:11.
APA	Wang, Ting,Zhou, Yuting,Li, Jialin,&Qin, Song.(2023).Molecular insights into nitrogen constraint for niche partitioning and physiological adaptation of coastal Synechococcus assemblages.ENVIRONMENTAL RESEARCH,239,11.
MLA	Wang, Ting,et al."Molecular insights into nitrogen constraint for niche partitioning and physiological adaptation of coastal Synechococcus assemblages".ENVIRONMENTAL RESEARCH 239(2023):11.