Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Dai, Yeliang1,2,3; Li, Jibing1,2,3; Wang, Shuang1,2,3; Cai, Xixi4; Zhao, Xuan1,2,3; Cheng, Xianghui1,2,3; Huang, Qihui1,2,5; Yang, Xiumin1,2; Luo, Chunling1,2,3 ; Zhang, Gan1,2,3
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| Unveiling the synergistic mechanism of autochthonous fungal bioaugmentation and ammonium nitrogen biostimulation for enhanced phenanthrene degradation in oil-contaminated soils | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| 2024-03-05 | |
| Volume | 465Pages:11 |
| DOI | 10.1016/j.jhazmat.2023.133293 |
| Language | 英语 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| Abstract | Autochthonous bioaugmentation and nutrient biostimulation are promising bioremediation methods for poly-cyclic aromatic hydrocarbons (PAHs) in contaminated agricultural soils, but little is known about their combined working mechanism. In this study, a microcosm trial was conducted to explore the combined mechanism of autochthonous fungal bioaugmentation and ammonium nitrogen biostimulation, using DNA stable-isotope-probing (DNA-SIP) and microbial network analysis. Both treatments significantly improved phenanthrene (PHE) removal, with their combined application producing the best results. The microbial community compo-sition was notably altered by all bioremediation treatments, particularly the PHE-degrading bacterial and fungal taxa. Fungal bioaugmentation removed PAHs through extracellular enzyme secretion but reduced soil microbial diversity and ecological stability, while nitrogen biostimulation promoted PAH dissipation by stimulating indigenous soil degrading microbes, including fungi and key bacteria in the soil co-occurrence networks, ensuring the ecological diversity of soil microorganisms. The combination of both approaches proved to be the most effective strategy, maintaining a high degradation efficiency and relatively stable soil biodiversity through the secretion of lignin hydrolytic enzymes by fungi, and stimulating the reproduction of soil native degrading microbes, especially the key degraders in the co-occurrence networks. Our findings provide a fresh perspective of the synergy between fungal bioaugmentation and nitrogen biostimulation, highlighting the potential of this combined bioremediation approach for in situ PAH-contaminated soils. |
| Keyword | Nitrogen biostimulation PAHs Autochthonous fungal bioaugmentation Degrading microorganism Stable-isotope-probing |
| WOS ID | WOS:001143630800001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/76098 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Li, Jibing; Luo, Chunling |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Guangdong Acad Agr Sci, Guangdong Key Lab Ornamental Plant Germplasm Innov, Environm Hort Res Inst, Guangzhou 510640, Peoples R China 5.Jinan Univ, Sch Environm, Guangdong Key Lab Environm Pollut & Hlth, Guangzhou 510632, Peoples R China |
| Recommended Citation GB/T 7714 | Dai, Yeliang,Li, Jibing,Wang, Shuang,et al. Unveiling the synergistic mechanism of autochthonous fungal bioaugmentation and ammonium nitrogen biostimulation for enhanced phenanthrene degradation in oil-contaminated soils[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,465:11. |
| APA | Dai, Yeliang.,Li, Jibing.,Wang, Shuang.,Cai, Xixi.,Zhao, Xuan.,...&Zhang, Gan.(2024).Unveiling the synergistic mechanism of autochthonous fungal bioaugmentation and ammonium nitrogen biostimulation for enhanced phenanthrene degradation in oil-contaminated soils.JOURNAL OF HAZARDOUS MATERIALS,465,11. |
| MLA | Dai, Yeliang,et al."Unveiling the synergistic mechanism of autochthonous fungal bioaugmentation and ammonium nitrogen biostimulation for enhanced phenanthrene degradation in oil-contaminated soils".JOURNAL OF HAZARDOUS MATERIALS 465(2024):11. |
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