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Enriching indigenous microbial consortia as a promising strategy for xenobiotics’ cleanup
Li,Junhui1,2,3; Wu,Cuiyu4; Chen,Shaohua5; Lu,Qihong6,7,8; Shim,Hojae8; Huang,Xia4; Jia,Chongjian9; Wang,Shanquan6,7
Source PublicationJournal of Cleaner Production
ABS Journal Level2

Enrichment of indigenous microbial consortia from contaminated environments is very crucial for developing bioremediation strategies. In this study, xenobiotic degrading consortia from seven diverse contaminated soils or sediments were enriched under aerobic conditions for over a year using different xenobiotics, to develop robust consortia for xenobiotic bioremediation. The 16S rRNA gene amplicon sequencing revealed that enriched prokaryotic consortia were predominated by Proteobacteria (84.7%), whereas the xenobiotic degraders varied primarily dependent on contaminants, accounting for 91.1% and 79.4% of variance at the phylum and genus level, respectively, with Pseudomonas spp. (Gammaproteobacteria) and Paracoccus spp. (Alphaproteobacteria) dominating treatments in the presence and absence of BTEX, respectively. The origin of the microbial source also significantly affects degraders community composition but only explained a small proportion of the variance (4.7% phylum and 7.0% genus). Significant BTEX biodegradation occurred in 7 days of incubation with the enriched indigenous consortia, and the results suggest that Pseudomonas spp. are the major aerobic BTEX degraders. This conclusion is supported by the metabolic potential of BTEX for those isolated Pseudomonas strains in the literature. Taken together, these results provide evidence about the primary influence of contaminants on the selection of xenobiotic degrading prokaryotic communities and highlight a promising strategy through bioaugmentation for the cleanup of xenobiotic contaminated sites.

KeywordBtex Cleanup Enrichment Prokaryotic Communities Pseudomonas
URLView the original
Indexed BySCIE
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000543511300045
Scopus ID2-s2.0-85082397090
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Cited Times [WOS]:11   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLi,Junhui
Affiliation1.Center for Ecosystem Science and Society,Northern Arizona University,Flagstaff,86011,United States
2.Department of Biological Sciences,Vanderbilt University,Nashville,37235,United States
3.Vanderbilt Microbiome Initiative,Vanderbilt University,Nashville,37235,United States
4.College of Natural Resources and Environmental Science,South China Agricultural University,Guangzhou,510642,China
5.Guangdong Laboratory for Lingnan Modern Agriculture,Integrative Microbiology Research Centre,South China Agricultural University,Guangzhou,510642,China
6.School of Environmental Science and Engineering,Sun Yat-Sen University,Guangzhou,510006,China
7.Environmental Microbiome Research Center,Sun Yat-Sen University,Guangzhou,510006,China
8.Department of Civil and Environmental Engineering,Faculty of Science and Technology,University of Macau,Macau SAR,999078,China
9.Guangdong Eco-engineering Polytechnic,Guangzhou,510520,China
Recommended Citation
GB/T 7714
Li,Junhui,Wu,Cuiyu,Chen,Shaohua,et al. Enriching indigenous microbial consortia as a promising strategy for xenobiotics’ cleanup[J]. Journal of Cleaner Production,2020,261.
APA Li,Junhui,Wu,Cuiyu,Chen,Shaohua,Lu,Qihong,Shim,Hojae,Huang,Xia,Jia,Chongjian,&Wang,Shanquan.(2020).Enriching indigenous microbial consortia as a promising strategy for xenobiotics’ cleanup.Journal of Cleaner Production,261.
MLA Li,Junhui,et al."Enriching indigenous microbial consortia as a promising strategy for xenobiotics’ cleanup".Journal of Cleaner Production 261(2020).
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