Stability of marine particulate organic matter under microbial mediation and its role in carbon sequestration
文献类型：期刊论文
| 作者 | Lu, Yao1,2; Yuan, Huamao1,2,3; Song, Jinming1,2,3; Li, Xuegang1,2,3; Duan, Liqin1,2,3; Wang, Qidong1,2,3; Pan, Fengmin1,2 |
| 刊名 | PROGRESS IN OCEANOGRAPHY
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 242页码:13 |
| 关键词 | Marine carbon sink Biological pump Particle size Refractory particulate organic carbon (RPOC) Amino acid compound-specific isotopic analysis |
| ISSN号 | 0079-6611 |
| DOI | 10.1016/j.pocean.2026.103668 |
| 通讯作者 | Yuan, Huamao(yuanhuamao@qdio.ac.cn) ; Song, Jinming() |
| 英文摘要 | The ocean annually absorbs approximately 2.9 GtC (gigatons of carbon), accounting for 26% of global CO2 emissions, making it a critical carbon sink. In this process, bacteria attached to particulate organic carbon (POC) play a pivotal role: they transform labile phytoplankton-derived carbon into more biochemically stable bacterial carbon, ultimately forming long-term storable refractory dissolved organic carbon (RDOC) and refractory particulate organic carbon (RPOC). Thus, the "refractory transformation" of marine organic carbon is a key mechanism in forming the biological carbon pump. Currently, the inventory, proportion, and microbial roles of RDOC have been preliminarily elucidated. However, the stock, sources, microbial transformation processes, underlying mechanisms of RPOC, and its contribution to long-term carbon sequestration remain unclear. Amino acids, as essential components of POC, have emerged as novel indicators-through their content, composition, and isotopic signatures-to effectively quantify microbial degradation and transformation of POC and decipher its stability mechanisms. This review systematically synthesizes research advances on the distribution and stability of POC across size classes under microbial mediation. It highlights the potential of amino acid-based techniques and compound-specific isotope analysis (CSIA) to unravel microbial contributions to RPOC formation and long-term carbon storage. Furthermore, a preliminary framework for quantifying the role of different POC size classes in marine carbon sequestration is proposed. This work provides a scientific basis for understanding the ocean's role in achieving the "carbon neutrality" goal and establishes a theoretical foundation for advancing knowledge of "microbe-size class-carbon sequestration" coupled mechanisms and developing ocean-based carbon sequestration technologies. |
| WOS关键词 | ISOTOPIC FRACTIONATION PATTERNS ; PACIFIC SUBTROPICAL GYRE ; AMINO-ACIDS ; NITROGEN-SOURCES ; SEA ; OCEAN ; SIZE ; INDICATORS ; POC ; SEDIMENTS |
| 资助项目 | National Natural Science Foundation of China[42276038] ; National Natural Science Foundation of China[42506198] ; National Key Research and Development Program[2022YFC3104305] ; National Key Research and Development Program[LSKJ202204001] ; Shandong Pro-vincial Postdoctoral Foundation Project (Innovation Project)[SDCX-ZG-202503096] ; China Postdoctoral Science Foundation[2025M780843] ; Postdoctoral Fellowship Program (Grade B) of China Postdoctoral Science Foundation[GZB20240754] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001667703500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204586]  |
| 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 | Yuan, Huamao; Song, Jinming |
| 作者单位 | 1.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Yao,Yuan, Huamao,Song, Jinming,et al. Stability of marine particulate organic matter under microbial mediation and its role in carbon sequestration[J]. PROGRESS IN OCEANOGRAPHY,2026,242:13. |
| APA | Lu, Yao.,Yuan, Huamao.,Song, Jinming.,Li, Xuegang.,Duan, Liqin.,...&Pan, Fengmin.(2026).Stability of marine particulate organic matter under microbial mediation and its role in carbon sequestration.PROGRESS IN OCEANOGRAPHY,242,13. |
| MLA | Lu, Yao,et al."Stability of marine particulate organic matter under microbial mediation and its role in carbon sequestration".PROGRESS IN OCEANOGRAPHY 242(2026):13. |
入库方式： OAI收割
来源：海洋研究所
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