Nutrient limitation mediates soil microbial community structure and stability in forest restoration

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 935, P. 173266 - 173266

Published: May 15, 2024

Language: Английский

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Mercapto-based palygorskite modified soil micro-biology and reduced the uptake of heavy metals by Salvia miltiorrhiza in cadmium and lead co-contaminated soil

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 345, P. 118859 - 118859

Published: Aug. 28, 2023

Language: Английский

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Restoration via the aggregate spray-seeding technique affected the soil proteobacteria on an Uninhabited Island: Community structure, metabolic function, nutritional type, and life strategy

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 53, P. e03009 - e03009

Published: May 26, 2024

This study aimed to explore the impact of aggregate spray-seeding (ASS) restoration measures on soil proteobacterial community. Using environmental DNA sequencing, we analyzed communities in soils 3 natural vegetation (NV) plots, traditional afforestation (TA) and 12 (SR) plots located Triangle Island Zhuhai city, China, during both summer winter seasons. We estimated metabolic function, nutritional type, life strategy Proteobacteria through FAPROTAX rrnDB databases. Our findings demonstrated that was predominant phylum (relative abundance = 40.1–48.4%) bacterial across all three treatments. The relative Alphaproteobacteria ranged from 28.5% 38.1%, which significantly greater (2.6–10.3 times, p < 0.05) than Betaproteobacteria or Gammaproteobacteria. Most (90%) genera rhizobial found NV TA were also present SR soil, but there distinct differences community structures between NV/TA soil. Across seasons treatments, related functions such as ureolysis, nitrogen fixation, nitrate reduction, hydrocarbon degradation. associated with chitinolysis soils. Among overall community, chemoheterotrophic, chemoautotrophic, phototrophic bacteria accounted for 65–77%, 19–31%, less 5%, respectively. tended be K strategic, while Gammaproteobacteria r strategic. pH, organic carbon content, content correlated function type according Mantel test results. In conclusion, application ASS technique can effectively restore biodiversity, nutritional-type structure Additionally, this highlights certain undergo changes response use materials. These suggest targeted addition specific repair materials modulate microorganism functionality provide a valuable theoretical foundation ecological engineering practices.

Language: Английский

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Fertilization regime changes rhizosphere microbial community assembly and interaction in Phoebe bournei plantations

Applied Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 108(1)

Published: July 12, 2024

Abstract Fertilizer input is one of the effective forest management practices, which improves soil nutrients and microbial community compositions promotes productivity. However, few studies have explored response rhizosphere communities to various fertilization regimes across seasonal dynamics. Here, we collected samples from Phoebe bournei plantations investigate assemblages interactions microbiome short-term application four typical fertilizer practices (including chemical (CF), organic (OF), compound (CMF), no control (CK)). The amendments altered composition bacterial fungal communities, respectively. regime significantly affected diversity rather than diversity, fungi responded more sensitively bacteria season. Fertilization-induced networks were complex networks. Stochastic processes governed both drift dispersal limitation dominated Collectively, these findings demonstrate contrasting responses practices. strengthens changes succession key taxa in habitat. Key points • Fertilization interaction Organic facilitated turnover Stochasticity assembly

Language: Английский

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Effects of organic nitrogen addition on soil microbial community assembly patterns in the Sanjiang Plain wetlands, northeastern China

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 204, P. 105685 - 105685

Published: Oct. 16, 2024

Language: Английский

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Prairie restoration promotes the abundance and diversity of mutualistic arbuscular mycorrhizal fungi

Ecological Applications, Journal Year: 2024, Volume and Issue: 34(5)

Published: May 13, 2024

Abstract Predicting how biological communities assemble in restored ecosystems can assist conservation efforts, but most research has focused on plants, with relatively little attention paid to soil microbial organisms that plants interact with. Arbuscular mycorrhizal (AM) fungi are an ecologically significant functional group of microbes form mutualistic symbioses and could therefore respond positively plant community restoration. To evaluate the effects restoration AM fungi, we compared fungal abundance, species richness, composition five annually cultivated, conventionally managed agricultural fields paired adjacent retired had undergone prairie 5–9 years prior sampling. We hypothesized stimulates abundance particularly for disturbance‐sensitive taxa, gains new taxa would not displace present due legacy effects. was quantified by measuring spore density root colonization. richness were determined soils roots using DNA high‐throughput sequencing. Soil 2.3 times higher prairies fields, colonization did differ between land use types. 2.7 1.4 versus roots, respectively. The Glomeraceae, a disturbance‐tolerant family, decreased 25% from roots. Claroideoglomeraceae Diversisporaceae, both families, 4.6 3.2 soils, Species turnover than expected relative null model, indicating gained replacement. Our findings demonstrate promote rapid increase diversity been degraded decades intensive use, compositional change be predicted disturbance tolerance taxonomic groups.

Language: Английский

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Effects of Wheat Straw-Derived Biochar on Soil Microbial Communities Under Phenanthrene Stress

Agriculture, Journal Year: 2025, Volume and Issue: 15(1), P. 77 - 77

Published: Jan. 1, 2025

The potential of biochar to mediate shifts in soil microbial communities caused by polycyclic aromatic hydrocarbon (PAH) stress farmland, thus assisting the bioremediation contaminated soil, remains uncertain. This study introduced wheat straw biochars generated at 300 °C (W300) and 500 (W500) varying levels (1% 2% w/w) into agricultural with phenanthrene 2.5 25 mg/kg. aim was investigate their effects on community structure degradation indigenous microbes. Biochar application both slightly (PLS) heavily (PHS) soils increased overall microbial/bacterial biomass, preserved bacterial diversity, selectively enriched certain genera, which were suppressed stress, through sorption enhancement biotoxicity alleviation. abundances PAH-degrading genera nidA gene promoted biochar, especially W300, PHS due nutrient improvement, enhancing biodegradation. However, PLS, particularly W500, inhibited abundance a reduction bioavailability specific degraders, hindering These findings suggest that applying produced appropriate temperatures can benefit ecology facilitate PAH elimination, offering sustainable strategy for utilizing resources safeguarding health product quality.

Language: Английский

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Soil Bacterial Community Characteristics and Functional Analysis of Estuarine Wetlands and Nearshore Estuarine Wetlands in Qinghai Lake

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 759 - 759

Published: March 27, 2025

Qinghai Lake, the largest inland saline lake in China, plays a vital role wetland carbon cycling. However, structure and function of soil bacterial communities its estuarine nearshore wetlands remain unclear. This study examined effects type depth on diversity, community composition, functional potential Shaliu, Heima, Daotang River using high-throughput sequencing. The results showed that significantly influenced communities. Nearshore exhibited lower diversity 0–10 cm layer, while deeper soils (10–20 cm) greater regional differentiation. Estuarine were enriched with Proteobacteria, Actinobacteriota, Chloroflexi, whereas dominated by Actinobacteriota Cyanobacteria. Functionally, had higher sulfate reduction anaerobic decomposition potential, Desulfovibrio, Desulfobacter, Desulfotomaculum regulating sulfur cycling decomposition. In contrast, nitrogen fixation organic matter degradation, facilitated Rhizobium, Azotobacter, Clostridium, nitrogen-fixing Cyanobacteria (e.g., Anabaena, Nostoc). Microbial metabolic functions varied depth: surface (0–10 favored environmental adaptation lipid metabolism DNA repair strategies for low-oxygen adaptation. These findings highlight spatial heterogeneity their biogeochemical cycles, providing insights into dynamics informing conservation strategies.

Language: Английский

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Microbial structure and activity studies in the post-mining heap’s novel ecosystems in Czech-Polish border the methodical challenge

IOP Conference Series Earth and Environmental Science, Journal Year: 2025, Volume and Issue: 1457(1), P. 012006 - 012006

Published: March 1, 2025

Abstract The project focuses on analyzing the activity and structure of microbial communities in post-mining coal mine heaps located along Czech-Polish border to identify key factors essential for ecosystem restoration. research encompasses characterization physiochemical properties heap soil substratum a detailed assessment community biomass, structure, activity. Previous studies reveal significant disparities between those natural ecosystems, with former exhibiting reduced biomass diversity. These variations are attributed challenging environmental conditions sites, including elevated pH, limited nutrient availability, localized high salinity, which collectively hinder proliferation. Additionally, deficiencies soils adversely affect plant growth, complicating establishment stable vegetation cover critical recovery. This aims deepen our understanding intricate relationships plants microbes both disturbed ecosystems. By elucidating these interactions, findings can provide valuable insights into restoring ecological balance functionality degraded lands. Ultimately, study has potential inform sustainable land management practices, enhance functions, contribute biodiversity conservation landscapes.

Language: Английский

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Enzymatic fermentation of rapeseed cake significantly improved the soil environment of tea rhizosphere

BMC Microbiology, Journal Year: 2023, Volume and Issue: 23(1)

Published: Sept. 7, 2023

Rapeseed cake is an important agricultural waste. After enzymatic fermentation, rapeseed not only has specific microbial diversity but also contains a lot of fatty acids, organic amino acids and their derivatives, which potential value as high-quality fertilizer. However, the effects fermented on tea rhizosphere microorganisms soil metabolites have been reported. In this study, we aimed to elucidate effect fertilizer tree, reveal correlation between nutrients/metabolites.The results showed that: (1) The application increased contents matter (OM), total nitrogen (TN), phosphorus (TP), available (AN), (AP); activities urease (S-UE), catalase (S-CAT), acid phosphatase (S-ACP) sucrase (S-SC); (2) relative abundance beneficial such Chaetomium, Inocybe, Pseudoxanthomonas, Pseudomonas, Sphingomonas, Stenotrophomonas; (3) sugar, acid, in soil, key metabolic pathways were concentrated sugar metabolisms; (4) promoted metabolism by microorganisms; enzymes jointly regulated soil.Enzymatic improved nutrient status structure was for enhancing productivity plantations. These findings provide new insights into use efficient expand its

Language: Английский

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