Microecological characteristics of water bodies/sediments and microbial remediation strategies after 50 years of pollution exposure in ammunition destruction sites in China

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118640 - 118640

Published: March 12, 2024

Language: Английский

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Soil sulfur cycle bacteria and metabolites affected by soil depth and afforestation conditions in high-sulfur coal mining areas

Applied Soil Ecology, Journal Year: 2023, Volume and Issue: 185, P. 104802 - 104802

Published: Jan. 14, 2023

Language: Английский

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Legume-potato rotation affects soil physicochemical properties, enzyme activity, and rhizosphere metabolism in continuous potato cropping

Chemical and Biological Technologies in Agriculture, Journal Year: 2023, Volume and Issue: 10(1)

Published: Nov. 22, 2023

Abstract Background Continuous cropping can reduce soil quality and affect rhizosphere metabolism, ultimately reducing crop yield. Crop rotation mitigate the damage caused by continuous cropping, but different patterns respond differently to metabolism. We investigated effects of on physicochemical properties, enzyme activities, microbial quantity, metabolism potato based a long-term field study from 2018 2022. The experiment was set up with following three treatments: ( Solanum tuberosum L.)-potato-potato-potato-potato (CK), potato-potato-potato-pea Pisum arvense L.)-potato (T1), potato-potato-potato-faba bean Vicia faba (T2). Results results showed that pea-potato (T1) bean-potato (T2) significantly improved properties enhanced activity, increased yield 21.19% 28.38%, respectively, compared crop. Non-targeted metabolomics analysis differential metabolites were mainly nucleotides, organic acids derivatives, flavonoids cropping. These are enriched in ABC transporter, purine pyrimidine phenylalanine pathways. Combined analyses legume-potato rotations quantity increasing tuber yields. In addition, correlation l -Tyrosine, Trans-Cinnamic acid, Guanine, Adenine) also strongly associated these measurements. Conclusions Therefore, we conclude modulate abundance function alter low molecular metabolite profile under conditions. Some important may play part cycling nutrients soil, making its better, raising activity enzymes, tubers. above indicate has positive effect soils. It lays solid foundation for revealing complex network metabolic pathways communities after legume rotation. Graphical

Language: Английский

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Reshaping the microenvironment and bacterial community of TNT- and RDX-contaminated soil by combined remediation with vetiver grass (Vetiveria ziznioides) and effective microorganism (EM) flora

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 815, P. 152856 - 152856

Published: Jan. 5, 2022

Language: Английский

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Functional keystone taxa promote N and P removal of the constructed wetland to mitigate agricultural nonpoint source pollution

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169155 - 169155

Published: Dec. 6, 2023

Language: Английский

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Unraveling the shift in bacterial communities profile grown in sediments co-contaminated with chlorolignin waste of pulp-paper mill by metagenomics approach

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 11, 2024

Pulp-paper mills (PPMs) are known for consistently generating a wide variety of pollutants, that often unidentified and highly resistant to environmental degradation. The current study aims investigate the changes in indigenous bacterial communities profile grown sediment co-contaminated with organic inorganic pollutants discharged from PPMs. two samples, designated PPS-1 PPS-2, were collected different sites. Physico-chemical characterization PPS-2 revealed presence heavy metals (mg kg −1 ) like Cu (0.009–0.01), Ni (0.005–0.002), Mn (0.078–0.056), Cr (0.015–0.009), Pb (0.008–0.006), Zn (0.225–0.086), Fe (2.124–0.764), Al (3.477–22.277), Ti (99.792–45.012) along high content chlorophenol, lignin. comparative analysis samples using gas chromatography–mass spectrometry (GC–MS) major refractory compounds, such as stigmasterol, β-sitosterol, hexadecanoic acid, octadecanoic acid; 2,4-di-tert-butylphenol; heptacosane; dimethyl phthalate; hexachlorobenzene; 1-decanol,2-hexyl; furane 2,5-dimethyl, etc which reported potential toxic compounds. Simultaneously, high-throughput sequencing targeting V3–V4 hypervariable region 16S rRNA genes, resulted identification 1,249 1,345 operational taxonomic units (OTUs) derived total 115,665 119,386 sequences read, respectively. Analysis rarefaction curves indicated diversity OTU abundance between (1,249 OTUs) (1,345 OTUs). Furthermore, assignment metagenomics sequence data showed Proteobacteria (55.40%; 56.30%), Bacteoidetes (11.30%; 12.20%), Planctomycetes (5.40%; 4.70%) most abundant phyla; Alphproteobacteria (20.50%; 23.50%), Betaproteobacteria (16.00%; 12.30%), Gammaproteobacteria recorded classes At genus level, Thiobacillus (7.60%; 4.50%) was genera samples. results indicate significant differences both relative taxa associated when compared PPS-1. This unveils key insights into contaminant characteristics shifts within contaminated environments. It highlights developing efficient bioremediation techniques restore ecological balance pulp-paper mill waste-polluted areas, stressing importance identifying percentage unclassified species explore novel genes.

Language: Английский

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New sensitive tools to characterize meta-metabolome response to short- and long-term cobalt exposure in dynamic river biofilm communities

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 171851 - 171851

Published: March 20, 2024

Untargeted metabolomics is a non-a priori analysis of biomolecules that characterizes the metabolome variations induced by short- and long-term exposures to stressors. Even if metabolite annotation remains lacunar due database gaps, global metabolomic fingerprint allows for trend analyses dose-response curves hundreds cellular metabolites. Analysis dose/time-response curve trends (biphasic or monotonic) untargeted features would thus allow use all chemical signals obtained in order determine stress levels (defense damage) organisms. To develop this approach context time-dependent microbial community changes, mature river biofilms were exposed 1 month four cobalt (Co) concentrations (from background concentration × 10−6 M) an open system artificial streams. The meta-metabolomic response was compared against multitude biological parameters (including bioaccumulation, biomass, chlorophyll content, composition structure prokaryotic eukaryotic communities) monitored at set exposure times h 28 days). Cobalt extremely rapid responses meta-metabolome, with time range inducing defense (TRIDeR) around 10 s, damage (TRIDaR) several hours. whose had been altered Co bioaccumulation (reduced contents changes diversity communities), (CRIDeR) similar initiation thresholds (1.41 ± 0.77 10−10 M Co2+ added medium) up meta-metabolome level every point. In contrast, (CRIDaR) increased biofilms. present study demonstrates biofilm are rapidly sustainably impacted, even within tolerant resistant communities.

Language: Английский

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Anaerobic sequencing batch reactor for concurrent removal of multiple recalcitrant munition compounds

Bioresource Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132244 - 132244

Published: Feb. 1, 2025

Language: Английский

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Microbial Community Composition of Explosive-Contaminated Soils: A Metataxonomic Analysis

Microorganisms, Journal Year: 2025, Volume and Issue: 13(2), P. 453 - 453

Published: Feb. 19, 2025

Munition disposal practices have significant effects on microbial composition and overall soil health. Explosive contamination can disrupt communities, leading to abundance richness changes. This study investigates the diversity of soils roots from sites with a history ammunition disposal, aiming identify organisms that may play role in bioremediation. Soil root samples were collected two types (through open burning detonation) unpolluted Machachi, Ecuador, over years (2022 2023). High-throughput sequencing 16S rRNA gene (for bacteria) ITS region fungi plants) was conducted obtain taxonomic profiles. There variations bacteria, fungi, plant communities between polluted sites. Bacterial genera such as Pseudarthrobacter, Pseudomonas, Rhizobium more abundant roots, while Candidatus Udaeobacter dominated soils. Fungal classes Dothideomycetes Sordariomycetes prevalent across most samples, Leotiomycetes Agaricomycetes also highly samples. Plant-associated reads showed higher Poa Trifolium particularly at contaminated sites, Alchemilla, Vaccinium, Hypericum Alpha analysis indicated bacterial significantly whereas fungal not different among Redundancy beta site, year, sample type influenced community structure, site being influential factor. Differentially taxa, including bacteria Pseudarthrobacter Paraleptosphaeria Talaromyces, contribute natural attenuation processes explosive-contaminated research highlights potential certain taxa restore environments by explosives.

Language: Английский

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Responses of rhizosphere microbial communities and resource competition to soil amendment in saline and alkaline soils

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Language: Английский

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