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

文献类型：期刊论文

作者Wang, Ting2,3; Li, Jialin2; Xu, Yandong1; Zou, Tao4; Qin, Song2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2024-03-20
卷号917页码:12
关键词Pico-cyanobacterial Synechococcus Aggregating lifestyle Phylogenetic preference Particle organic matter
ISSN号0048-9697
DOI10.1016/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.
WOS关键词FLOW-CYTOMETRY ; YELLOW-RIVER ; MARINE ; PHYTOPLANKTON ; SEDIMENT ; PROCHLOROCOCCUS ; CYANOBACTERIA ; DIVERSITY ; GROWTH ; FLUX
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001177537200001
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
源URL[http://ir.yic.ac.cn/handle/133337/36178]  
专题海岸带生物学与生物资源利用重点实验室
烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
通讯作者Li, Jialin; Qin, Song
作者单位1.Shandong Marine Resource & Environm Res Inst, Shandong Prov Key Lab Restorat Marine Ecol, Yantai 264006, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resource Conservat, Yantai 264003, Peoples R China
3.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remediat, Yantai 264003, Shandong, 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.

入库方式： OAI收割

来源：烟台海岸带研究所

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