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Jiang, Y.* ; Huang, H. ; Tian, Y.* ; Yu, X.* ; Li, X.*

Stochasticity versus determinism: Microbial community assembly patterns under specific conditions in petrochemical activated sludge.

J. Hazard. Mater. 407:124372 (2021)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The pattern of microbial community assembly in petrochemical sludge is not well-explained. In this study, three kinds of petrochemical activated sludge (AS) from the same seed sludge were investigated to determine their microbial assembly pattern for long-term adaptation. Beta Nearest Taxon Index analysis revealed that the assembly strategies of the abundant and rare operational taxonomic unit (OTU) sub-communities are different for archaeal and bacterial communities. Abundant OTUs preferred deterministic processes, whereas rare OTUs randomly formed due to weak selection. Canonical correspondence analysis/variation partition analysis and Mantel testing results revealed that ammonium, petroleum, and chromium (Cr (VI)) mainly structured the abundant sub-communities. On the other hand, environmental variables, including ammonium, petroleum, and heavy metals, shaped the rare sub-communities. The PICRUSt2 tool was used to predict the functions. Results indicated a greater abundance of microbes harboring the hydrocarbon degradation pathway and heavy-metal-resistant enzymes. Cross-treatment experiments using one type of AS to treat the other two kinds of wastewater were conducted. The results of the cross-treatment experiments and qPCR both suggest the functional adaptation of the microbial community. We revealed selection strategies for the adaptation of bacteria and archaea in AS during environmental changes, providing a theoretical basis for petrochemical wastewater treatment.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Abundant Sub-community ; Assembly Pattern ; Determinism ; Rare Sub-community ; Stochasticity; Waste-water Treatment; Bacterial Diversity; Long-term; Removal; Dispersal; Dynamics
ISSN (print) / ISBN 0304-3894
e-ISSN 1873-3336
Quellenangaben Band: 407, Heft: , Seiten: , Artikelnummer: 124372 Supplement: ,
Verlag Elsevier
Verlagsort Radarweg 29, 1043 Nx Amsterdam, Netherlands
Begutachtungsstatus Peer reviewed
Förderungen Chinese Scholarship Council
Gansu Province Major Science and Technology project
National Natural Science Foundation of China