Nitrification in agricultural soils: impact, actors and mitigation

Current Opinion in Biotechnology, Journal Year: 2018, Volume and Issue: 50, P. 166 - 173

Published: Feb. 3, 2018

Language: Английский

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Wheat rhizosphere harbors a less complex and more stable microbial co-occurrence pattern than bulk soil

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 125, P. 251 - 260

Published: July 29, 2018

Language: Английский

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Controls and Adaptive Management of Nitrification in Agricultural Soils

Frontiers in Microbiology, Journal Year: 2019, Volume and Issue: 10

Published: Aug. 30, 2019

Agriculture is responsible for over half of the input reactive nitrogen (N) to terrestrial systems; however improving N availability remains primary management technique increase crop yields in most regions. In majority agricultural soils, ammonium rapidly converted nitrate by nitrification, which increases mobility through soil matrix, strongly influencing retention system. Decreasing nitrification desirable decrease losses and fertilizer use efficiency. We review controlling factors on rate extent soils from temperate regions including substrate supply, environmental conditions, abundance diversity nitrifiers plant microbial interactions with nitrifiers. Approaches include those that control inhibit directly. Strategies timing fertilization coincide rapid update, formulation fertilizers slow release or inhibitors, keeping growing continuously assimilate N, increasing assimilation (immobilization). Another effective strategy directly either synthetic biological inhibitors. Commercial inhibitors are but their complicated a changing climate organic requirements. The nitrifying organisms plants microbes producing promising approach just beginning be critically examined. Climate smart agriculture will need carefully consider optimized seasonal these strategies remain tools.

Language: Английский

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Ammonia oxidation: Ecology, physiology, biochemistry and why they must all come together

FEMS Microbiology Letters, Journal Year: 2018, Volume and Issue: 365(9)

Published: March 9, 2018

Ammonia oxidation is a fundamental core process in the global biogeochemical nitrogen cycle. Oxidation of ammonia (NH3) to nitrite (NO2 -) first and rate-limiting step nitrification carried out by distinct groups microorganisms. essential for nutrient turnover most terrestrial, aquatic engineered ecosystems plays major role, both directly indirectly, greenhouse gas production environmental damage. Although has been studied over century, this research field galvanised past decade surprising discoveries novel oxidising This review reflects on date discusses gaps remaining our knowledge biology oxidation.

Language: Английский

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Insights into the physiology of ammonia-oxidizing microorganisms

Current Opinion in Chemical Biology, Journal Year: 2018, Volume and Issue: 49, P. 9 - 15

Published: Sept. 17, 2018

Language: Английский

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Low yield and abiotic origin of N2O formed by the complete nitrifier Nitrospira inopinata

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: April 23, 2019

Nitrous oxide (N2O) and nitric (NO) are atmospheric trace gases that contribute to climate change affect stratospheric ground-level ozone concentrations. Ammonia oxidizing bacteria (AOB) archaea (AOA) key players in the nitrogen cycle major producers of N2O NO globally. However, nothing is known about production by recently discovered widely distributed complete ammonia oxidizers (comammox). Here, we show comammox bacterium Nitrospira inopinata sensitive inhibition an scavenger, cannot denitrify N2O, emits at levels comparable AOA but much lower than AOB. Furthermore, demonstrate formed N. under varying oxygen regimes originates from abiotic conversion hydroxylamine. Our findings indicate microbes may produce less during nitrification

Language: Английский

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Nitrification and beyond: metabolic versatility of ammonia oxidising archaea

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(9), P. 1358 - 1368

Published: July 14, 2023

Ammonia oxidising archaea are among the most abundant living organisms on Earth and key microbial players in global nitrogen cycle. They carry out oxidation of ammonia to nitrite, their activity is relevant for both food security climate change. Since discovery nearly 20 years ago, major insights have been gained into carbon metabolism, growth preferences mechanisms adaptation environment, as well diversity, abundance environment. Despite significant strides forward through cultivation novel omics-based approaches, there still many knowledge gaps metabolism which enable them adapt microorganisms typically considered metabolically streamlined highly specialised. Here we review physiology archaea, with focus aspects metabolic versatility regulation, discuss these traits context nitrifier ecology.

Language: Английский

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Organic matter processing by microbial communities throughout the Atlantic water column as revealed by metaproteomics

Proceedings of the National Academy of Sciences, Journal Year: 2017, Volume and Issue: 115(3)

Published: Dec. 18, 2017

Significance Circumstantial evidence indicates that especially deep-ocean heterotrophic microbes rely on particulate organic matter sinking through the oceanic water column and being solubilized to dissolved (DOM) prior utilization rather than direct uptake of vast pool DOM in deep ocean. Comparative metaproteomics allowed us elucidate vertical distribution abundance microbially mediated transport processes thus solutes throughout column. Taken together, our data suggest that, while phylogenetic composition microbial community is depth stratified, substrate specificities transporters considered this study are ubiquitous their relative changes with depth.

Language: Английский

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Planktonic Marine Archaea

Annual Review of Marine Science, Journal Year: 2018, Volume and Issue: 11(1), P. 131 - 158

Published: Sept. 13, 2018

Archaea are ubiquitous and abundant members of the marine plankton. Once thought as rare organisms found in exotic extremes temperature, pressure, or salinity, archaea now known nearly every environment. Though frequently referred to collectively, planktonic actually comprise four major phylogenetic groups, each with its own distinct physiology ecology. Only one group—the Thaumarchaeota—has cultivated representatives, making an attractive focus point for latest developments cultivation-independent molecular methods. Here, we review ecology, physiology, biogeochemical impact archaeal groups using recent insights from cultures large-scale environmental sequencing studies. We highlight key gaps our knowledge about ecological roles carbon flow food web interactions. emphasize incredible uncultivated diversity within suggesting there is much more be done.

Language: Английский

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Nitrogen cycling during wastewater treatment

Advances in applied microbiology, Journal Year: 2018, Volume and Issue: unknown, P. 113 - 192

Published: Dec. 10, 2018

Language: Английский

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