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Enhanced carbon sequestration in marginal seas through bacterial transformation

文献类型：期刊论文

作者Guo, Jinqiang6,7; Zhou, Bu6,7; Achterberg, Eric P.6; Shen, Yuan3,4; Song, Jinming1,2,5,7; Duan, Liqin1,2,5,7; Li, Xuegang1,2,5,7; Yuan, Huamao1,2,5,7
刊名WATER RESEARCH
出版日期2025-08-01
卷号281页码:7
关键词Particulate organic matter Amino acids Bacterial organic carbon Heterotrophic transformation Marginal sea
ISSN号0043-1354
DOI10.1016/j.watres.2025.123595
通讯作者Song, Jinming(jmsong@qdio.ac.cn) ; Yuan, Huamao(yuanhuamao@qdio.ac.cn)
英文摘要Labile organic carbon is a highly dynamic component of the marine carbon pool, traditionally thought to be respired within hours to days into carbon dioxide (CO2) by bacteria, although there is a paucity of direct observational evidence. Here, we report that a significant portion of labile particulate organic carbon (POC) in marginal seas is converted into bacterial material. By exploiting D/L-amino acids, we trace the origins of labile POC and its transformation into bacterial POC in the marginal seas off Eastern China. Our results indicate that labile POC primarily originates from autochthonous primary production, with bacterial POC fractions closely paralleling those of labile POC. It appears that rapid bacterial POC transformation is driven by enhanced bacterial growth efficiency from abundant nutrients in marginal seas. We estimate that around 0.08 +/- 0.03 Pg of bacterial organic carbon is buried annually in global marginal seas, accounting for similar to 40 % of total organic carbon burial, thus contributing to long-term carbon sequestration. These findings highlight the critical role of bacterial transformation in carbon sequestration within marginal seas and provide a potential mechanism for the observed increase in CO2 uptake in coastal regions.
WOS关键词DISSOLVED ORGANIC-MATTER ; BIOLOGICAL HOT-SPOTS ; GROWTH EFFICIENCY ; AMINO-ACID ; ARCTIC-OCEAN ; BIOAVAILABILITY ; DEGRADATION ; PARTICULATE ; LABILE ; RIVER
资助项目National Natural Science Foundation of China[42322602] ; Laoshan Laboratory[LSKJ202204001] ; Shandong Provincial Natural Science Foundation[ZR2020YQ28] ; Two-Hundred Talents Plan of Yantai Scholar Project Special Funding ; Fujian Provincial Central Guided Local Science and Technology Development Special Project[2022L3078] ; [42276038]
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Water Resources
语种英语
WOS记录号WOS:001469618100001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/201644]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Song, Jinming; Yuan, Huamao
作者单位1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen, Peoples R China
4.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China
5.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
6.GEOMAR Helmholtz Ctr Ocean Res Kiel, Marine Biogeochem Div, Kiel, Germany
7.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Jinqiang,Zhou, Bu,Achterberg, Eric P.,et al. Enhanced carbon sequestration in marginal seas through bacterial transformation[J]. WATER RESEARCH,2025,281:7.
APA Guo, Jinqiang.,Zhou, Bu.,Achterberg, Eric P..,Shen, Yuan.,Song, Jinming.,...&Yuan, Huamao.(2025).Enhanced carbon sequestration in marginal seas through bacterial transformation.WATER RESEARCH,281,7.
MLA Guo, Jinqiang,et al."Enhanced carbon sequestration in marginal seas through bacterial transformation".WATER RESEARCH 281(2025):7.

入库方式： OAI收割

来源：海洋研究所

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