Phosphorus limitation induces membrane lipid remodeling in aquatic phytoplankton
文献类型：期刊论文
| 作者 | Liu, Xue1,3; Duan, Liqin1,2,3,4; Song, Jinming1,2,3,4 |
| 刊名 | MARINE ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 212页码:14 |
| 关键词 | Sulfolipid substitution Phosphorus limitation Cyanobacteria Eukaryotic phytoplankton Primary productivity |
| ISSN号 | 0141-1136 |
| DOI | 10.1016/j.marenvres.2025.107526 |
| 通讯作者 | Duan, Liqin(duanliqin@qdio.ac.cn) |
| 英文摘要 | Phosphorus (P) is a critical limiting nutrient for phytoplankton growth in aquatic ecosystems. Under P-limitation, phytoplankton adapt by remodeling membrane lipids, replacing phospholipids (PLs) with non-P lipids such as sulfolipid sulfoquinovosyldiacylglycerol (SQDG) and betaine lipids (BLs). This mechanism is essential for reevaluating the relationship between phosphate (PO43-) concentrations and primary productivity. This review synthesizes lipid composition changes in cyanobacteria and eukaryotic phytoplankton from laboratory cultures and natural aquatic ecosystems to elucidate the mechanisms of this adaptation. Under P-limited conditions, PLs like phosphatidylglycerol (PG) decrease significantly, while SQDG increases in both cyanobacteria and eukaryotic phytoplankton. This is accompanied by a pronounced increase in the SQDG:PG ratio, indicating enhanced sulfolipid synthesis to compensate for phospholipid depletion. Differently, BLs increase exclusively in eukaryotic phytoplankton, with an obvious increase in the BL: phosphatidylcholine (PC) ratio, indicating BL substitution for PC as an additional mechanism in membrane lipid remodeling, but absent in cyanobacteria. The SQDG:PG ratio negatively correlates with dissolved P concentrations, indicating the prevalence of sulfolipid substitution under P limitation. Collectively, phytoplankton adapt through coordinated pathways involving phospholipid degradation and non-P lipid biosynthesis. Sulfolipid substitution occurs in the thylakoid membranes of phytoplankton. This substitution maintains the integrity of thylakoid membranes, thereby sustaining primary productivity and the carbon cycle in aquatic ecosystems. |
| WOS关键词 | MARINE ; NITROGEN ; MECHANISMS ; SULFOQUINOVOSYLDIACYLGLYCEROL ; BIOSYNTHESIS ; ACCUMULATION ; PLANKTON |
| 资助项目 | Technology Innovation Project[LSKJ202205003] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:001582101900001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203482]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Duan, Liqin |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xue,Duan, Liqin,Song, Jinming. Phosphorus limitation induces membrane lipid remodeling in aquatic phytoplankton[J]. MARINE ENVIRONMENTAL RESEARCH,2025,212:14. |
| APA | Liu, Xue,Duan, Liqin,&Song, Jinming.(2025).Phosphorus limitation induces membrane lipid remodeling in aquatic phytoplankton.MARINE ENVIRONMENTAL RESEARCH,212,14. |
| MLA | Liu, Xue,et al."Phosphorus limitation induces membrane lipid remodeling in aquatic phytoplankton".MARINE ENVIRONMENTAL RESEARCH 212(2025):14. |
入库方式： OAI收割
来源：海洋研究所
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