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

Environmental Research, Год журнала: 2023, Номер 234, С. 116491 - 116491

Опубликована: Июнь 30, 2023

Язык: 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, Год журнала: 2023, Номер 57(34), С. 12771 - 12781

Опубликована: Авг. 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.

Язык: 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, Год журнала: 2024, Номер 924, С. 171662 - 171662

Опубликована: Март 13, 2024

Язык: 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, Год журнала: 2023, Номер 54(14), С. 1023 - 1049

Опубликована: Ноя. 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.

Язык: 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, Год журнала: 2023, Номер 465, С. 133121 - 133121

Опубликована: Ноя. 30, 2023

Язык: 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, Год журнала: 2023, Номер 350, С. 119695 - 119695

Опубликована: Ноя. 29, 2023

Язык: Английский

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

Bioresource Technology, Год журнала: 2024, Номер 404, С. 130918 - 130918

Опубликована: Май 31, 2024

Язык: 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), Год журнала: 2024, Номер unknown

Опубликована: Авг. 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.

Язык: 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, Год журнала: 2024, Номер 262, С. 119903 - 119903

Опубликована: Сен. 6, 2024

Язык: Английский

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

Environmental Sciences Europe, Год журнала: 2024, Номер 36(1)

Опубликована: Окт. 4, 2024

Язык: Английский

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