New insight into the mechanisms of autochthonous fungal bioaugmentation of phenanthrene in petroleum contaminated soil by stable isotope probing
文献类型：期刊论文
| 作者 | Dai, Yeliang3,4,5; Li, Jibing3,4,5; Yang, Xiumin5; Wang, Shuang3,4,5; Zhao, Xuan3,4,5; Wang, Yujie2; Zhang, Dayi1; Luo, Chunling3,4,5 ; Zhang, Gan3,4,5
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2023 |
| 卷号 | 452页码:131271 |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2023.131271 |
| 英文摘要 | Autochthonous fungal bioaugmentation (AFB) is considered a reliable bioremediation approach for polycyclic aromatic hydrocarbon (PAH) contamination, but little is known about its mechanisms in contaminated soils. Here, a microcosm experiment was performed to explore the AFB mechanisms associated with two highly efficient phenanthrene degrading agents of fungi (with laccase-producing Scedosporium aurantiacum GIG-3 and non-laccase-producing Aspergillus fumigatus LJD-29), using stable-isotope-probing (SIP) and high-throughput sequencing. The results showed that each fungus markedly improved phenanthrene removal, and microcosms with both fungi exhibited the best phenanthrene removal performance among all microcosms. Additionally, AFB markedly shifted the composition of the microbial community, particularly the phenanthrene-degrading bacterial taxa. Interestingly, based on SIP results, strains GIG-3 and LJD-29 did not assimilate phenanthrene directly during AFB, but instead played key roles in the preliminary decomposition of phenanthrene though secretion of different extracellular enzymes to oxidize the benzene ring (GIG-3 bioaugmentation with laccase, and LJD-29 bioaugmentation with manganese and lignin peroxidases). In addition, all functional degraders directly involved in phenanthrene assimilation were indigenous bacteria, while native fungi rarely participated in the direct phenanthrene mineralization. Our findings provide a new mechanism of AFB with multiple fungi, and support AFB as a promising strategy for the in situ bioremediation of PAH-contaminated soil. ? 2023 Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80313]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.College of New Energy and Environment, Jilin University, Changchun; 130021, China 2.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou; 510006, China 3.University of Chinese Academy of Sciences, Beijing; 100039, China 4.CAS Center for Excellence in Deep Earth Science, Guangzhou; 510640, China 5.State Key Laboratory of Organic Geochemistry and Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China |
| 推荐引用方式 GB/T 7714 | Dai, Yeliang,Li, Jibing,Yang, Xiumin,et al. New insight into the mechanisms of autochthonous fungal bioaugmentation of phenanthrene in petroleum contaminated soil by stable isotope probing[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,452:131271. |
| APA | Dai, Yeliang.,Li, Jibing.,Yang, Xiumin.,Wang, Shuang.,Zhao, Xuan.,...&Zhang, Gan.(2023).New insight into the mechanisms of autochthonous fungal bioaugmentation of phenanthrene in petroleum contaminated soil by stable isotope probing.JOURNAL OF HAZARDOUS MATERIALS,452,131271. |
| MLA | Dai, Yeliang,et al."New insight into the mechanisms of autochthonous fungal bioaugmentation of phenanthrene in petroleum contaminated soil by stable isotope probing".JOURNAL OF HAZARDOUS MATERIALS 452(2023):131271. |
入库方式： OAI收割
来源：广州地球化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。