In-situ remediation of sediment by calcium nitrate combined with composite microorganisms under low-DO regulation DOI
Weiping Li, Zhang Shaokang,

Lieyu Zhang

et al.

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 697, P. 134109 - 134109

Published: Aug. 26, 2019

Language: Английский

Dissimilatory nitrate reduction to ammonium (DNRA): A unique biogeochemical cycle to improve nitrogen (N) use efficiency and reduce N-loss in rice paddy DOI
Megha Kaviraj, Upendra Kumar, Soumendranath Chatterjee

et al.

Rhizosphere, Journal Year: 2024, Volume and Issue: 30, P. 100875 - 100875

Published: March 22, 2024

Language: Английский

Citations

11

Extreme precipitation alters soil nitrogen cycling related microbial community in karst abandoned farmland DOI

Yuzhen Suolang,

Weixue Luo, Jingwen Ma

et al.

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 197, P. 105345 - 105345

Published: Feb. 26, 2024

Language: Английский

Citations

10

Diversity and ecology of NrfA-dependent ammonifying microorganisms DOI Creative Commons
Aurélien Saghaï, Sara Hallin

Trends in Microbiology, Journal Year: 2024, Volume and Issue: 32(6), P. 602 - 613

Published: March 9, 2024

Nitrate ammonifiers are a taxonomically diverse group of microorganisms that reduce nitrate to ammonium, which is released, and thereby contribute the retention nitrogen in ecosystems. Despite their importance for understanding fate nitrate, they remain largely overlooked cycle. Here, we present latest advances on free-living using NrfA nitrite during ammonification. We describe diversity ecology terrestrial aquatic environments, as well environmental factors influencing competition with denitrifiers gaseous species, including greenhouse gas nitrous oxide (N2O). further review capacity other redox reactions, showing likely play multiple roles cycling elements.

Language: Английский

Citations

9

Overlooked in-situ sulfur disproportionation fuels dissimilatory nitrate reduction to ammonium in sulfur-based system: Novel insight of nitrogen recovery DOI
Bo Shao, Li Niu, Yuan-Guo Xie

et al.

Water Research, Journal Year: 2024, Volume and Issue: 257, P. 121700 - 121700

Published: April 30, 2024

Language: Английский

Citations

9

Carbon selection for nitrogen degradation pathway by Stenotrophomonas maltophilia: Based on the balances of nitrogen, carbon and electron DOI

Yating Jia,

Miaomiao Zhou, Yuancai Chen

et al.

Bioresource Technology, Journal Year: 2019, Volume and Issue: 294, P. 122114 - 122114

Published: Sept. 5, 2019

Language: Английский

Citations

73

Survey of dissimilatory nitrate reduction to ammonium microbial community at national wetland of Shanghai, China DOI
Yiyi Zhao,

Cuina Bu,

Houling Yang

et al.

Chemosphere, Journal Year: 2020, Volume and Issue: 250, P. 126195 - 126195

Published: Feb. 14, 2020

Language: Английский

Citations

56

Measuring denitrification and the N2O:(N2O + N2) emission ratio from terrestrial soils DOI Creative Commons
Johannes Friedl, L. M. Cardenas, Timothy J. Clough

et al.

Current Opinion in Environmental Sustainability, Journal Year: 2020, Volume and Issue: 47, P. 61 - 71

Published: Sept. 24, 2020

Denitrification, a significant pathway of reactive N-loss from terrestrial soils, impacts on agricultural production and the environment. Net emission denitrification product nitrous oxide (N2O) is readily quantifiable, but measuring denitrification's final product, dinitrogen (N2), against high atmospheric background remains challenging. This review examines methods quantifying both N2 N2O emissions, based inhibitors, helium/O2 atmosphere exchange, isotopes. These are evaluated regarding their capability to account for pathways we suggest quality parameters controlled environments field scale. Our appraisal shows that method combinations, together with real-time monitoring soil-gas diffusivity modelling, have potential significantly improve our quantitative understanding upland soils. Requirements instrumentation experimental setups however highlight need develop more mobile easily accessible constrain soils across scales.

Language: Английский

Citations

56

Effect of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) on N-turnover, the N2O reductase-gene nosZ and N2O:N2 partitioning from agricultural soils DOI Creative Commons
Johannes Friedl, Clemens Scheer, David Rowlings

et al.

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: Feb. 12, 2020

Abstract Nitrification inhibitors (NIs) have been shown to reduce emissions of the greenhouse gas nitrous oxide (N 2 O) from agricultural soils. However, their N O reduction efficacy varies widely across different agro-ecosystems, and underlying mechanisms remain poorly understood. To investigate effects NI 3,4-dimethylpyrazole-phosphate (DMPP) on N-turnover a pasture horticultural soil, we combined quantification with 15 tracing analysis O-reductase gene ( nosZ ) in soil microcosm study. Nitrogen fertilization suppressed abundance both soils, showing that high nitrate availability preferential over is responsible for large pulses after DMPP attenuated this effect only reducing nitrification while increasing abundance. reduced by >50% but did not affect overall + losses, demonstrating shift O:N ratio towards as key mechanism mitigation NIs. Under non-limiting NO 3 − availability, NIs mitigate therefore depends ability suppression reductase concentrations enabling complete denitrification .

Language: Английский

Citations

52

C-N-S synergy in a pilot-scale mainstream anammox fluidized-bed membrane bioreactor for treating chemically enhanced primary treatment saline sewage DOI Creative Commons
Xiaowu Huang, Wenkui Mi,

Yuen Him Chan

et al.

Water Research, Journal Year: 2022, Volume and Issue: 229, P. 119475 - 119475

Published: Dec. 8, 2022

Seawater for toilet flushing conserves the scarce freshwater resources in Hong Kong and similar densely-populated coastal cities. Saline sewage treatment using energy-efficient anammox-based processes appears to be beneficial, with notable potential future. However, feasibility of this process remains uncharted, especially from its start-up steady-state cooperation. In study, a pilot-scale mainstream anammox was succeeded granular activated carbon fluidized-bed membrane bioreactor (FMBR) only inoculating saline anaerobic digestion sludge. The FMBR, operating at dissolved oxygen (DO) 0.04-0.16 mg/L, achieved comparable nitrogen removal rates 50.1-78.3 g N/m3/d while treating real chemically enhanced primary 3.2 m3/d. Excluding Scalindua, 16S rRNA gene amplicon sequencing revealed high abundance common-freshwater-observed Kuenenia 0.2% (day 259) 1.3% 332) biofilms. Nitrosomonas, responsible ammonium oxidation, dominated biofilms accounted 1.8%-9.2%. Nitrite oxidizing bacteria incursion happened unexpectedly, due exposure/supply temporary on-site technical difficulties; however, NOB suppression by controlling DO <0.16 leading FMBR's stability over 343-day operation. Sulfate-reducing sulfur-dependent denitrifiers propagated abundance, representing 14.0±10.6% 6.0±2.0% suspensions 7.2±1.8% 15.9±2.3% biofilms, respectively. Further, metagenomic analysis indicated C-N-S synergy nitritation, anammox, sulfate reduction, mixotrophic denitrification FMBR. Importantly, research found that such novel made scavenges hydrogen sulfide Gammaproteobacteria sp. (B01 B19) Thioalkalispiraceae (B03 B04), species having ascendancy subsisting presence owing their aptitude detoxifying reactive species. Knowledge gleaned as well complete set pilot experimental data, could serve strong base larger-scale application process.

Language: Английский

Citations

38

Rapid dissimilatory nitrate reduction to ammonium conserves bioavailable nitrogen in organic deficient soils DOI
Yuxuan Wan, Qing Du, Yue Wu

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 177, P. 108923 - 108923

Published: Dec. 22, 2022

Language: Английский

Citations

31