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BTEX biodegradation is linked to bacterial community assembly patterns in contaminated groundwater ecosystem.
J. Hazard. Mater. 419:126205 (2021)
The control of degrader populations and the stochasticity and certainty of the microbial community in contaminated groundwater are not well-understood. In this study, a long-term contaminated groundwater ecosystem was selected to investigate the impact of BTEX on microbial communities and how microbial communities respond to BTEX pollution. 16S rRNA gene sequencing and metagenomic sequencing provided insights on microbial community assemblage patterns and their role in BTEX cleaning. The operational taxonomy units (OTUs) in the contaminated groundwater ecosystem were clustered distinguishably between the Plume and the Deeper Zone (lower contaminated zone). βNTI analysis revealed that the assembly strategies of abundant and rare OTU subcommunities preferred deterministic processes. Redundancy Analysis (RDA) and mantel testing indicated that benzene, toluene, ethylbenzene, and xylenes (BTEX) strongly drove the abundant OTU subcommunity, while the rare OTU subcommunity was only weakly affected. Deltaproteobacteria, the most dominant degrading microorganism, contains the complete degradation genes in the plume layer. In summary, our finding revealed that BTEX was the major factor in shaping the microbial community structure, and functional bacteria contribute greatly to water cleaning. Investigating the pattern of microbial community assembly will provide insights into the ecological controls of contaminant degradation in groundwater.
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Anaerobic Degradation ; Assembly Pattern ; Btex ; Microbial Community; Long-term; Microbial Community; Soil; Degradation; Aquifer; Fertilization; Biodiversity; Dispersal; Rare
Sprache
englisch
Veröffentlichungsjahr
2021
HGF-Berichtsjahr
2021
ISSN (print) / ISBN
0304-3894
e-ISSN
1873-3336
Zeitschrift
Journal of Hazardous Materials
Quellenangaben
Band: 419,
Artikelnummer: 126205
Verlag
Elsevier
Verlagsort
Radarweg 29, 1043 Nx Amsterdam, Netherlands
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Virology (VIRO)
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-554300-001
Förderungen
Chinese Scholarship Council, China
German Research Foundation, Germany (DFG)
German Research Foundation, Germany (DFG)
WOS ID
WOS:000693460200004
Scopus ID
85109198011
PubMed ID
34216964
Erfassungsdatum
2021-07-22