Electric syntrophy-driven modulation of Fe0-dependent microbial denitrification
文献类型：期刊论文
| 作者 | Gao, Tianyu1,2; Li, Ying2; Dai, Ke3; Meng, Fangang1 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2025 |
| 卷号 | 268页码:10 |
| 关键词 | Biocorrosion Extracellular electron transfer Electronic Syntrophy Iron Microbial denitrification |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2024.122722 |
| 通讯作者 | Li, Ying(liying@ms.giec.ac.cn) ; Meng, Fangang(mengfg@mail.sysu.edu.cn) |
| 英文摘要 | In natural or engineered anaerobic environments, iron oxidation-driven microbial denitrification plays a critical role in the water or wastewater treatment. Herein, we report a previously unidentified metallic iron (Fe0)dependent denitrification mode driven by the electro-syntrophic interaction between electroactive microorganism and denitrifier. In a model denitrifying consortium of Shewanella oneidensis and Pseudomonas aeruginosa, we find that P. aeruginosa can accept electrons for nitrate reduction via the constructed electron transfer system of Fe0-S. oneidensis-P. aeruginosa. In the electro-syntrophic consortium, the membrane-bound CymA-OmcA-MtrC protein complexes of S. oneidensis drive the generation, transfer and consumption of electrons, thus enabling modulation of microbial metabolic activity. Specially, using Fe0 as the sole electron donor, S. oneidensis can act as a bio-engine to harvest electrons and conserve energy from Fe0 biocorrosion. Electrons released by S. oneidensis are utilized by P. aeruginosa for accomplishing microbial denitrification. Metatranscriptomics analysis demonstrated that the direct electron cross-feeding process facilitates the expression of genes encoding for denitrification enzymes, intracellular electron transfer proteins, and quorum sensing of P. aeruginosa. The Fe0dependent electronic syntrophy in this work could provide a metabolic window for the growth of denitrifiers that is a new insight into nitrate removal or global nitrogen cycle. |
| WOS关键词 | IRON ; MECHANISM ; BIOFILM |
| 资助项目 | National Natural Science Founda-tion of China[42307282] ; National Natural Science Founda-tion of China[22376228] ; Basic and Applied Basic Research Foundation of Guangdong Province[2022A1515110472] ; Basic and Applied Basic Research Foundation of Guangdong Province[2024B1515040015] ; Basic and Applied Basic Research Foundation of Guangdong Province[2024A1515012085] ; Liaoning Tech-nical Innovation Centre of Industrial Ecology and Environmental Engi-neering[LTICIEEE-22-01] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001352960900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Founda-tion of China ; Basic and Applied Basic Research Foundation of Guangdong Province ; Liaoning Tech-nical Innovation Centre of Industrial Ecology and Environmental Engi-neering |
| 源URL | [http://ir.giec.ac.cn/handle/344007/43408]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Ying; Meng, Fangang |
| 作者单位 | 1.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Biomass Biochem Convers, Guangzhou 510640, Peoples R China 3.Huazhong Agr Univ, Coll Resources & Environm, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Tianyu,Li, Ying,Dai, Ke,et al. Electric syntrophy-driven modulation of Fe0-dependent microbial denitrification[J]. WATER RESEARCH,2025,268:10. |
| APA | Gao, Tianyu,Li, Ying,Dai, Ke,&Meng, Fangang.(2025).Electric syntrophy-driven modulation of Fe0-dependent microbial denitrification.WATER RESEARCH,268,10. |
| MLA | Gao, Tianyu,et al."Electric syntrophy-driven modulation of Fe0-dependent microbial denitrification".WATER RESEARCH 268(2025):10. |
入库方式： OAI收割
来源：广州能源研究所
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