A novel mechanism of enhanced PCBs degradation associated with nitrogen in the rhizosphere of the wetland plant Myriophyllum aquaticum
文献类型：期刊论文
| 作者 | Wang, Shuang1,2,3,4,5; Zhao, Xuan1,4,5; Li, Jibing1,4,5; Dai, Yeliang1,3,4,5; Cheng, Xianghui1,3,4,5; Jiang, Longfei1,4,5; Luo, Chunling1,4,5 ; Zhang, Gan1,4,5
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| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
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| 出版日期 | 2024-01-05 |
| 卷号 | 461页码:10 |
| 关键词 | Ammonia DNA-SIP Myriophyllum aquaticum Polychlorinated biphenyls PCB-degrading bacteria |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2023.132466 |
| 英文摘要 | Co-contamination of polychlorinated biphenyls (PCBs) and nitrogen (N) is widespread. Here, N removal and PCBs degradation were investigated in constructed wetlands populated with Myriophyllum aquaticum, and the role of N in PCBs degradation was explored as well. Nearly 97% of N was removed in the planted system, whereas less than 40% was removed in the plant-free system. Compared to the treatment with plants and no N amend-ment, N addition enhanced plant growth by 31.9% and PCBs removal by 9.90%. PCBs attenuation was mainly attributed to microbial degradation rather than plant uptake. Using DNA stable-isotope probing, 26 operational taxonomic units were identified across all treatments, of which 25 were linked to PCBs degradation for the first time. Some PCB-degraders were associated with nitrification/denitrification and were significantly enriched in the treatment that included both plants and N application, indicating that PCBs degradation was promoted by recruiting ammonia-oxidising and denitrifying microbes with PCBs metabolic ability. This was confirmed by the higher A13/A12 ratios for the bphC, amoA, and nirK genes and their significant positive correlations. Overall, the findings clarify the novel mechanism by which N promotes PCBs degradation in constructed wetlands and offers a theoretical basis for efficiently removing inorganic elements and persistent organic pollutants. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001088997700001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78712]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Jiang, Longfei; Luo, Chunling |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Hong Kong 510640, Peoples R China 2.Chengdu Technol Univ, Sch Mat & Environm Engn, Chengdu 610000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shuang,Zhao, Xuan,Li, Jibing,et al. A novel mechanism of enhanced PCBs degradation associated with nitrogen in the rhizosphere of the wetland plant Myriophyllum aquaticum[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,461:10. |
| APA | Wang, Shuang.,Zhao, Xuan.,Li, Jibing.,Dai, Yeliang.,Cheng, Xianghui.,...&Zhang, Gan.(2024).A novel mechanism of enhanced PCBs degradation associated with nitrogen in the rhizosphere of the wetland plant Myriophyllum aquaticum.JOURNAL OF HAZARDOUS MATERIALS,461,10. |
| MLA | Wang, Shuang,et al."A novel mechanism of enhanced PCBs degradation associated with nitrogen in the rhizosphere of the wetland plant Myriophyllum aquaticum".JOURNAL OF HAZARDOUS MATERIALS 461(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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