Metagenomic Analysis of Microbial Alliances for Efficient Degradation of PHE: Microbial Community Structure and Reconstruction of Metabolic Network

Pan Xu, Xiaoxiao Chen, Kai Li, Rong Meng and Yuewu Pu ()
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Pan Xu: School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
Xiaoxiao Chen: School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
Kai Li: School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
Rong Meng: The Husbandry Technology Promotion Center of Inner Mongolia, Hohhot 010051, China
Yuewu Pu: School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China

IJERPH, 2022, vol. 19, issue 19, 1-15

Abstract: Polycyclic aromatic hydrocarbons are a widespread organic pollutant worldwide. In this study, a highly efficient phenanthrene (PHE)-degrading microbial community was enriched from oil extraction soil, which could degrade 500 mg/L PHE within 4 days. Using 16S rRNA sequencing, the dominant bacteria in this community at the phylum level were found to be Proteobacteria , Actinobacteria , and Firmicutes . Metagenomic annotation of genes revealed the metabolic pathways and the contribution of different bacteria to the degradation process. Pseudomonadaceae contributed multiple functional genes in the degradation process. This study revealed the functional genes, metabolic pathways, and microbial interactions of the microbial community, which are expected to provide guidance for practical management.

Keywords: phenanthrene degradation; metagenomics analysis; microbial community structure; reconstructing metabolic network (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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