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56 results for “Denitrification”
Data from: Effect of soil pH increase by biochar on NO, N2O and N2 production during denitrification in acid soils
Biochar (BC) application to soil suppresses emission of nitrous- (N2O) and nitric oxide (NO), but the mechanisms are unclear. One of the most prominent features of BC is its alkalizing effect in soils, which may affect denitrification and its product stoichiometry directly or indirectly. We conducted laboratory experiments with anoxic slurries of acid Acrisols from Indonesia and Zambia and two contrasting BCs produced locally from rice husk and cacao shell. Dose-dependent responses of denitrification and gaseous products (NO, N2O and N2) were assessed by high-resolution gas kinetics and related to the alkalizing effect of the BCs. To delineate the pH effect from other BC effects, we removed part of the alkalinity by leaching the BCs with water and acid prior to incubation. Uncharred cacao shell and sodium hydroxide (NaOH) were also included in the study. The untreated BCs suppressed N2O and NO and increased N2 production during denitrification, irrespective of the effect on denitrification rate. The extent of N2O and NO suppression was dose-dependent and increased with the alkalizing effect of the two BC types, which was strongest for cacao shell BC. Acid leaching of BC, which decreased its alkalizing effect, reduced or eliminated the ability of BC to suppress N2O and NO net production. Just like untreated BCs, NaOH reduced net production of N2O and NO while increasing that of N2. This confirms the importance of altered soil pH for denitrification product stoichiometry. Addition of uncharred cacao shell stimulated denitrification strongly due to availability of labile carbon but only minor effects on the product stoichiometry of denitrification were found, in accordance with its modest effect on soil pH. Our study indicates that stimulation of denitrification was mainly due to increases in labile carbon whereas change in product stoichiometry was mainly due to a change in soil pH.
Denitrification performance of pseudomonas fluorescens Z03 immobilized by GO modified PVA-SA gel bead at low temperature
<p>Experimental data monitoring results.</p>
Data from: Looking back to look ahead: a vision for soil denitrification research
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Denitrification performance of pseudomonas fluorescens Z03 immobilized by GO modified PVA-SA gel bead at low temperature
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Data from: Effect of soil pH increase by biochar on NO, N2O and N2 production during denitrification in acid soils
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Data from: Optimization of nitrogen and carbon removal with simultaneous partial nitrification, anammox, and denitrification (SNAD) in membrane bioreactor (MBR)
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Identification of genes regulated by the antitermination factor NasT during denitrification in Bradyrhizobium diazoefficiens.
GEO Series GSE130301. Bradyrhizobium diazoefficiens. 4 samples. Type: Expression profiling by high throughput sequencing.
Transcriptomic profiling of haloarchaeal denitrification through RNA-Seq analysis
GEO Series GSE245042. Haloferax mediterranei. 6 samples. Type: Expression profiling by high throughput sequencing.
The global response regulator RegR controls expression of denitrification genes in Bradyrhizobium japonicum
GEO Series GSE56668. Bradyrhizobium japonicum; Bradyrhizobium diazoefficiens USDA 110. 8 samples. Type: Expression profiling by array.
Expanding the regulon of the Bradyrhizobium diazoefficiens NnrR transcription factor: New insights into denitrification pathway
GEO Series GSE130684. Bradyrhizobium diazoefficiens USDA 110; Bradyrhizobium diazoefficiens. 6 samples. Type: Expression profiling by array.
Chemical and isotopic data of laboratory batch and column experiments using industrial wine wastes to biostimulate denitrification
<p>Nitrate and nitrite are common pollutants in wastewater and agricultural runoff, and their removal is crucial to mitigate environmental impacts. The study focused on utilising sustainable and cost-effective carbon sources to enhance denitrification performance in nitrate-contaminated field water. Laboratory batch and column experimental work was carried out aimed at investigating the feasibility of using wine wastes as electron donors in a feasibility study to biostimulate biological denitrification. Two industrial wine wastes were collected from local wineries (lias and vinico). The samples were characterized for their organic carbon content to determine their suitability as electron donors. Two sets of denitrification reactors were set up, consisting of a series of crystal Pyrex<sup>®</sup> reactors. Each reactor contained nitrate-contaminated water, and gravel from the field, which was covered with aluminium crimp caps with septa and purged with Ar to create an anaerobic environment. Each series of reactors were biostimulated with the respective wine waste. Control reactors without wine wastes were also prepared for comparison. Lias was successful in removing nitrates in the batch experiment and was subsequently used in the column experiment to test its potential in a continuous flow system. </p> <p>The chemical and isotopic results of the two sets of parallel batch experiments and the column experiment are presented in this data.</p> <p>A geochemical model was performed to simulate the experimental results for the future field application using the Phreeqc and the Gibbstudio software and iso.dat and the wateq4f databases. </p>
Successful Sulphide-driven Partial Denitrification: efficiency, stability and resiliency in SRT-controlled conditions
GEO Series GSE192713. sulfo-oxidizing enrichment culture. 4 samples. Type: Other.
Co-culturing Bacillus subtilis and wastewater microbial community in a bio-electrochemical system enhances denitrification and butyrate formation
GEO Series GSE150480. Clostridium butyricum; Clostridium beijerinckii. 32 samples. Type: Expression profiling by high throughput sequencing.
Impact of Electric Potential on the Transcriptome of Paracoccus denitrificans in denitrification Conditions
GEO Series GSE299670. Paracoccus denitrificans PD1222. 5 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome analysis of Paracoccus denitrificans during aerobic and anaerobic respiration (denitrification)
GEO Series GSE97959. Paracoccus denitrificans; Paracoccus denitrificans PD1222. 6 samples. Type: Expression profiling by array.
Role of the DNR- and FNR- type regulators in regulation of the denitrification genes in Roseobacter denitrificans OCh114
GEO Series GSE153074. Roseobacter denitrificans OCh 114. 10 samples. Type: Expression profiling by array.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.