Aggregating <i>Synechococcus </i>contributes to particle organic carbon export in coastal estuarine waters: Its lineage features and assembly processes

doi:10.1016/j.scitotenv.2024.170368

YIC-IR

	*Aggregating Synechococcus* contributes to particle organic carbon export in coastal estuarine waters: Its lineage features and assembly processes**
	Wang, Ting 1,4; Li, Jialin1 ; Xu, Yandong 2; Zou, Tao3 ; Qin, Song1
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
	2024-03-20
卷号	917 页码:12
关键词	Pico-cyanobacterial Synechococcus Aggregating lifestyle Phylogenetic preference Particle organic matter
DOI	10.1016/j.scitotenv.2024.170368
通讯作者	Li, Jialin(jlli@yic.ac.cn) ; Qin, Song(sqin@yic.ac.cn)
英文摘要	The release and deposition of phytoplankton-derived particulate organic matter is crucial in marine carbon export, yet the roles of picoplankton in these processes were seldom considered. Therefore, this study aimed to shed light on the matter by investigating the aggregating (AG) lifestyle of Synechococcus, a main group of picoplankton, in the coastal waters of the Yellow River Estuary with ample sediments acting as ballast minerals. We revealed that AG Synechococcus constituted a substantial portion, maximally reaching up to 85.4 %, of the total Synechococcus population. Pearson correlations and random forest (RF) regression analyses found significant connections (p < 0.01) between AG Synechococcus and the content of particulate organic carbon (POC), which emphasized its underlying role in facilitating POC export in this region. Furthermore, by employing highthroughput sequencing of the RNA polymerase gene (rpoC1), it was demonstrated that S5.1 clade I exhibited a significantly higher proportion in the AG fraction than in the free-living (FL) fraction (p < 0.05). This suggests distinct inclinations in the phylogenetic preference for different Synechococcus lineages between different lifestyles in the studied area. Finally, we ascertained "small-world" and higher robustness attributes of aggregates formed through the co-occurrence construction between Synechococcus and heterotrophic bacteria, likely facilitated by the reciprocal exchange of carbon and nitrogen elements. Overall, these findings have implications for our understanding of the role of Synechococcus in the ecology and biogeochemistry of marine ecosystems, and they are significant for more accurately evaluating the contribution of picophytoplankton in ocean carbon export.
资助机构	National Natural Science Foundation of China ; Seed project of Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences ; NSFC Shiptime Sharing Project
收录类别	SCI
语种	英语
关键词[WOS]	FLOW-CYTOMETRY ; YELLOW-RIVER ; MARINE ; PHYTOPLANKTON ; SEDIMENT ; PROCHLOROCOCCUS ; CYANOBACTERIA ; DIVERSITY ; GROWTH ; FLUX
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:001177537200001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34924
专题	中国科学院烟台海岸带研究所
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 Conservat, Yantai 264003, Peoples R China 2.Shandong Marine Resource & Environm Res Inst, Shandong Prov Key Lab Restorat Marine Ecol, Yantai 264006, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ting,Li, Jialin,Xu, Yandong,et al. Aggregating Synechococcus contributes to particle organic carbon export in coastal estuarine waters: Its lineage features and assembly processes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,917:12.
APA	Wang, Ting,Li, Jialin,Xu, Yandong,Zou, Tao,&Qin, Song.(2024).Aggregating Synechococcus contributes to particle organic carbon export in coastal estuarine waters: Its lineage features and assembly processes.SCIENCE OF THE TOTAL ENVIRONMENT,917,12.
MLA	Wang, Ting,et al."Aggregating Synechococcus contributes to particle organic carbon export in coastal estuarine waters: Its lineage features and assembly processes".SCIENCE OF THE TOTAL ENVIRONMENT 917(2024):12.