Effects of long-term herbaceous plant restoration on microbial communities and metabolic profiles in coal gangue-contaminated soil

Environmental Research, Journal Year: 2023, Volume and Issue: 234, P. 116491 - 116491

Published: June 30, 2023

Language: Английский

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Fe-Based Nanomaterials and Plant Growth Promoting Rhizobacteria Synergistically Degrade Polychlorinated Biphenyls by Producing Extracellular Reactive Oxygen Species

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(34), P. 12771 - 12781

Published: Aug. 16, 2023

Plant growth promoting rhizobacteria (PGPR) produce extracellular reactive oxygen species (ROS) to protect plants from external stresses. Fe-based nanomaterials can potentially interact with PGPR and synergistically degrade organic pollutants, yet they have received no study. Here, we studied how the interaction between a typical (Pseudomonas chlororaphis, JD37) facilitated degradation of 2,4,4'-trichlorobiphenyl (PCB28), by comparing zerovalent iron 20 nm (nZVI20), 100 (nZVI100), 5 μm; oxide (α-Fe2O3, γ-Fe2O3, Fe3O4) ca. nm; ferrous ferric salts. Although all Fe materials (0.1 g L-1) alone could not aqueous PCB28 mg under dark or aerobic conditions, nZVI20, nZVI100, α-Fe2O3, Fe2+ promoted JD37, half-life shortened 16.5 h JD37 8.1 nZVI100 cotreatment. Mechanistically, stimulated secrete phenazine-1-carboxylic acid accelerated NADH/NAD+ conversion, O2*- generation; increased Fe(II) dissolution nanomaterials, facilitating *OH ROS gradually degraded into benzoic through dihydroxy substitution, oxidation quinone, Michael addition. These findings provide new strategy nanoenabled biodegradation pollutants applying PGPR.

Language: Английский

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Dissolved organic matter influences the indigenous bacterial community and polycyclic aromatic hydrocarbons biodegradation in soils

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 924, P. 171662 - 171662

Published: March 13, 2024

Language: Английский

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Recent advances and optimization strategies for the microbial degradation of PCBs: From monocultures to microbial consortia

Critical Reviews in Environmental Science and Technology, Journal Year: 2023, Volume and Issue: 54(14), P. 1023 - 1049

Published: Nov. 29, 2023

Polychlorinated biphenyls (PCBs) are a class of synthetic organic compounds that widely distributed in the environment and have significant adverse effects on humans as well ecosystem. Many microorganisms can degrade PCBs been reported, including monocultures bacteria fungi, natural artificial microbial consortia. Generally, anaerobic dechlorination highly chlorinated to reduce their toxicity, while aerobic oxidation degrades lowly (four or fewer chlorine atoms) realizes complete mineralization into CO2 by disrupting benzene ring structure. Due need for metabolism wide range PCB congeners environment, consortia become research hotspot, species diversity facilitates metabolic cooperation, enabling them undertake more complex tasks. In this review, we will discuss mechanisms degradation consortia, focus recent progress development optimization PCB-degrading community composition analysis methods, prevailing strategies such biostimulation, bioaugmentation, metagenomics, combination other methods better remediation effect, which provide theoretical practical bases rational design, construction further efficient high-efficiency PCBs.

Language: Английский

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Microbiome resistance mediates stimulation of reduced graphene oxide to simultaneous abatement of 2,2′,4,4′,5-pentabromodiphenyl ether and 3,4-dichloroaniline in paddy soils

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133121 - 133121

Published: Nov. 30, 2023

Language: Английский

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Characteristics of dissolved organic matter (DOM) in Chinese farmland soils under different climate zone types: A molecular perspective

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 350, P. 119695 - 119695

Published: Nov. 29, 2023

Language: Английский

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Translocation and dissipation of seven indicator polychlorinated biphenyls from contrast soils cultivated with different root vegetables

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 28, 2024

The behaviour of 7 polychlorinated biphenyls (PCBs) in agricultural Chernozem and Fluvisol soils from the Czech Republic planted with radishes, onions carrots was studied. Only total biomass carrot yield significantly (P < 0.05) reduced when compared to control yield. All tested PCBs, especially congener PCB 28, were able accumulate slightly higher amounts radish surface than onion one. highest content observed layer carrots, which could be related agrochemical properties soil, vegetation period more intensive contact roots PCBs a bulk soil. translocation factors lower 1, indicating poor ability for uptake relative removal soil acidic Fluvisol, accounting 27.2%, maximum 2% plant contribution dissipation. Non-significant vegetable-planted indicated that root vegetables not enhance autochthonous microorganisms degrade by releasing exudates rhizosphere vegetables. Bioaccumulation derived cultivation examined contaminated at nearly 1500 µg/kg dw can considered as low negligible.

Language: Английский

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Biohydrogen utilization in legume-rhizobium symbiosis reveals a novel mechanism of accelerated tetrachlorobiphenyl transformation

Bioresource Technology, Journal Year: 2024, Volume and Issue: 404, P. 130918 - 130918

Published: May 31, 2024

Language: Английский

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Molecular-level insight into the effect of fertilization regimes on the chemodiversity of dissolved organic matter in tropical cropland

Environmental Research, Journal Year: 2024, Volume and Issue: 262, P. 119903 - 119903

Published: Sept. 6, 2024

Language: Английский

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Translocation and dissipation of seven indicator polychlorinated biphenyls from contrast soils cultivated with different root vegetables

Environmental Sciences Europe, Journal Year: 2024, Volume and Issue: 36(1)

Published: Oct. 4, 2024

Language: Английский

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