Using Klebsiella sp. and Pseudomonas sp. to Study the Mechanism of Improving Maize Seedling Growth Under Saline Stress

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 436 - 436

Published: Feb. 2, 2025

The increasing salinization of cultivated soil worldwide has led to a significant reduction in maize production. Using saline–alkaline-tolerant growth-promoting bacteria (PGPR) the rhizosphere can significantly improve saline tolerance and ensure stability yields, which become global research hotspot. This study screened salt-tolerant microorganisms Klebsiella sp. (GF2) Pseudomonas (GF7) from clarify mechanism improving maize. In this study, different application treatments (GF2, GF7, GF2 + GF7) no (CK) were set up explore potential ecological relationships between seedlings, characteristics, microorganisms. results showed that co-occurrence network Zi-Pi analysis identified as core microbial communities seedlings grown soil. deterministic process assembly mainly controlled bacterial community, whereas fungi governed by random processes. saline–alkaline-resistant PGPR under stress promoted seedling growth, increased activity enzymes, enhanced total nitrogen, organic carbon, carbon nitrogen contents. Additionally, it reduced salt alkali ion concentrations [electrical conductivity (EC) exchangeable Na+]. Among them, GF7 treatment had best effect, indicating could directly or indirectly environment. EC was determining factor promote growth saline–alkaline (5.56%; p < 0.01). provided an important theoretical reference deciphers role factors microecology enhancing

Language: Английский

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Effect of biochar addition on antibiotic and heavy metal resistance genes during sewage sludge composting

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115732 - 115732

Published: Feb. 1, 2025

Language: Английский

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The Efficient Remediation and Community Assembly of Co-Contaminated Agricultural Soils Under Cold Stress Using Immobilized Bacterial Agents: A Perspective Based on Abundance Differences

Published: Jan. 1, 2025

Language: Английский

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Environmental sulfonamides pollution and microbial adaptation: Genome, transcriptome, and toxicology reveal Bacillus sp. HC-1 biotransformation and antibiotic resistance mechanisms

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 492, P. 138089 - 138089

Published: April 2, 2025

Language: Английский

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Cr(VI) reduction, electricity production, and microbial resistance variation in paddy soil under microbial fuel cell operation

SOIL, Journal Year: 2025, Volume and Issue: 11(1), P. 323 - 338

Published: April 28, 2025

Abstract. The microbial fuel cell (MFC) is an efficient in situ approach to combat pollutants and generate electricity. This study constructed a soil MFC (SMFC) reduce Cr(VI) paddy investigate its influence on community resistance characteristics. Ferroferric oxide (Fe3O4) nanoparticles, as the cathodic catalyst, effectively boosted power generation (0.97 V, 102.00 mW m−2), with porous structure reducibility also contributing chromium (Cr) reduction immobilization. After 30 d, 93.67 % of was eliminated. bioavailable Cr decreased by 97.44 %, while residual form increased 88.89 %. SMFC operations greatly changed enzymatic activity structure, exoelectrogens like Desulfotomaculum (3.32 anode) Cr(VI)-reducing bacteria Hydrogenophaga (2.07 cathode) more than 1000 folds soil. In particular, significantly enhanced heavy-metal gene (HRG) abundance. Among them, chrA, chrB, chrR 99.54 %–3314.34 anodes, probably attributable enrichment potential tolerators Acinetobacter, Limnohabitans, Desulfotomaculum. These key taxa were positively correlated HRGs but negatively pH, electrical conductivity (EC), Cr(VI), which could have driven reduction. provided novel evidence for bio-electrochemical system applications contaminated soil, be environmental remediation detoxification.

Language: Английский

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Enhanced Remediation of Co-contaminated Agricultural Soils under Cold Stress by Immobilized Bacterial Agents: A Perspective Based on Abundance Differences

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 494, P. 138552 - 138552

Published: May 9, 2025

Language: Английский

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Effects of Chicken Manure Combinations on Compost Maturity and Microbial Community Dynamics in Industrial-Scale Composting

Waste and Biomass Valorization, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

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Novel process for organic wastewater treatment using aerobic composting technology: Shifting from pollutant removal towards resource recovery

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 913, P. 169522 - 169522

Published: Dec. 22, 2023

Language: Английский

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Optimizing ciprofloxacin removal through regulations of trophic modes and FNA levels in a moving bed biofilm reactor performing sidestream partial nitritation

Water Research X, Journal Year: 2024, Volume and Issue: 22, P. 100216 - 100216

Published: Jan. 1, 2024

The performance of partial nitritation (PN)-moving bed biofilm reactor (MBBR) in removal antibiotics the sidestream wastewater has not been investigated so far. In this work, ciprofloxacin was assessed under varying free nitrous acid (FNA) levels and different trophic modes. For first time, a positive correlation observed between FNA levels, either autotrophic PN-MBBR or mixotrophic PN-MBBR, mainly ascribed to FNA-stimulating effect on heterotrophic bacteria (HB)-induced biodegradation. maximum efficiency (∼98 %) rate constant (0.021 L g-1 SS h-1) were obtained at an average level 0.056 mg-N L-1, which 5.8 51.2 times higher than corresponding values 0 mg FNA-N L-1. Increasing from 0.006 L-1 would inhibit ammonia oxidizing (AOB)-induced cometabolism metabolism 10.2 % 6.9 6.2 6.4 %, respectively, while HB-induced increased 31.2 22.7 41.9 34.5 respectively. became predominant biodegradation pathway (75.9 %-85.8 mode. Less antimicrobial biotransformation products without piperazine fluorine newly identified propose potential degradation pathways, microbial-induced metabolic types levels. This work shed light enhancing antibiotic via regulating both accumulation organic carbon addition process treating wastewater.

Language: Английский

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Vermicomposting significantly reduced antibiotic resistance genes in cow manure even under high tetracycline concentrations

Bioresource Technology, Journal Year: 2024, Volume and Issue: unknown, P. 132002 - 132002

Published: Dec. 1, 2024

Language: Английский

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