Structural, metabolic, and functional characteristics of soil microbial communities in response to benzo[a]pyrene stress

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 431, P. 128632 - 128632

Published: March 5, 2022

Language: Английский

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Nitrate reduction by the aerobic denitrifying actinomycete Streptomyces sp. XD-11-6-2: Performance, metabolic activity, and micro-polluted water treatment

Bioresource Technology, Journal Year: 2021, Volume and Issue: 326, P. 124779 - 124779

Published: Jan. 29, 2021

Language: Английский

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Dynamic microbial community composition, co-occurrence pattern and assembly in rhizosphere and bulk soils along a coniferous plantation chronosequence

CATENA, Journal Year: 2023, Volume and Issue: 223, P. 106914 - 106914

Published: Jan. 6, 2023

Language: Английский

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Aerobic denitrifying bacterial communities drive nitrate removal: Performance, metabolic activity, dynamics and interactions of core species

Bioresource Technology, Journal Year: 2020, Volume and Issue: 316, P. 123922 - 123922

Published: July 30, 2020

Language: Английский

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Depth-dependent variability of biological nitrogen fixation and diazotrophic communities in mangrove sediments

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: Oct. 27, 2021

Abstract Background Nitrogen-fixing prokaryotes (diazotrophs) contribute substantially to nitrogen input in mangrove sediments, and their structure fixation rate (NFR) are significantly controlled by environmental conditions. Despite the well-known studies on diazotrophs surficial diversity, structure, ecological functions of diazotrophic communities along gradients sediment across different depths largely unknown. Here, we investigated how biological varied with depth sediments from perspectives both NFR communities. Results Through acetylene reduction assay, nifH gene amplicon metagenomic sequencing, found that increased but diversity decreased sediments. The at was driven salinity exhibited a clear divergence partitioning 50 cm. Among genera correlated NFR, Agrobacterium Azotobacter were specifically enriched 50–100 cm while Anaeromyxobacter , Rubrivivax Methylocystis Dickeya Methylomonas more abundant 0–50 Consistent higher analysis demonstrated elevated abundance genes ( nifH/D/K ) deep where nitrification amoA/B/C denitrification nirK norB became less abundant. Three metagenome-assembled genomes (MAGs) indicated facultatively anaerobic mixotrophic lifestyles as they contained for low-oxygen-dependent metabolism, hydrogenotrophic respiration, carbon fixation, pyruvate fermentation. Conclusions This study demonstrates depth-dependent variability terms communities, which certain extent relieves degree limitation

Language: Английский

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Seasonal variations in soil physicochemical properties and microbial community structure influenced by Spartina alterniflora invasion and Kandelia obovata restoration

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 797, P. 149213 - 149213

Published: July 21, 2021

Language: Английский

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Effects of exogenous organic acids and flooding on root exudates, rhizosphere bacterial community structure, and iron plaque formation in Kandelia obovata seedlings

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 830, P. 154695 - 154695

Published: March 23, 2022

Language: Английский

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Biochar mitigates the mineralization of allochthonous organic matter and global warming potential of saltmarshes by influencing functional bacteria

Carbon Research, Journal Year: 2024, Volume and Issue: 3(1)

Published: Jan. 22, 2024

Abstract Saltmarshes are suffering from severe degradation due to anthropogenic activities, leading the loss of blue carbon and greenhouse gas (GHG) emissions. Given significant potential biochar in mitigating climate change, adding saltmarshes would alleviate this situation. This study investigated effects different (made Spartina alterniflora , corn straw, Laminaria japonica ) their aged on fraction contents, GHG emissions, microbial community structure saltmarsh soils with allochthonous organic matter ( Enteromorpha prolifera addition. After 60 days incubation, total (TOC) global warming (GWP) biochar-amended were reduced by 67.29–124.33% 4.91–123.24%, respectively p < 0.05). Biochar proportion labile (dissolved (DOC) biomass (MBC)) 61.92–86.15% In addition, relative abundance specific functional bacteria (inc. cellulolysis, aromatic compound degradation, xylanolysis) involved decomposition 20.02–37.82% These results suggest that even presence high levels liable matter, application has a sustained effect promoting accumulation reducing is regulated decrease associated metabolism. Therefore, situ restoring sink function proposed for practical engineering future. Graphical

Language: Английский

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Variations in the diversity of the soil microbial community and structure under various categories of degraded wetland in Sanjiang Plain, northeastern China

Land Degradation and Development, Journal Year: 2020, Volume and Issue: 32(6), P. 2143 - 2156

Published: Dec. 29, 2020

Abstract Understanding the changes in microbial community composition wetlands affected by different types of degradation can help enrich theoretical knowledge about wetland degradation. However, studies relative role microorganisms under are rare ecology. Because agricultural development, a large volume groundwater has been extracted from Sanjiang Plain over last few decades, which caused To provide information for development and protection this ecosystem, investigations into processes important. The aim present work was to assess impacts on soil communities four Plain: swamp meadow (SW), (MW), paddy farmland (PF), cropland (CL). Both 16S ITS rRNA gene amplicon sequencing were used evaluate diversity bacteria fungi. A total 638,758 effective 916,211 valid internal transcribed spacer sequences obtained, classified 11 fungal 40 bacterial phyla. dominant phyla Ascomycota Proteobacteria, respectively. In addition, increased abundances Chloroflexi Gemmatimonadetes, but Proteobacteria Verrucomicrobia significantly decreased. Shannon index SW lower than those other investigated sites. Fungal showed no significant differences degraded wetlands. addition degradation, reactions their clearly coorelated with phosphorus (TP), potassium (TK), available (AK), organic matter (SOM), formed essential criteria that influenced communities. Wetland resulted decrease nutrient decline abundance phylum These be as an early warning signal degrading Plain.

Language: Английский

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Water-lifting aerator reduces algal growth in stratified drinking water reservoir: Novel insights into algal metabolic profiling and engineering applications

Environmental Pollution, Journal Year: 2020, Volume and Issue: 266, P. 115384 - 115384

Published: Aug. 12, 2020

Language: Английский

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