Soil structure and microbiome functions in agroecosystems

Nature Reviews Earth & Environment, Journal Year: 2022, Volume and Issue: 4(1), P. 4 - 18

Published: Nov. 22, 2022

Language: Английский

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Genomics and Ecology of Novel N2O-Reducing Microorganisms

Trends in Microbiology, Journal Year: 2017, Volume and Issue: 26(1), P. 43 - 55

Published: Aug. 10, 2017

Language: Английский

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Nitrous oxide from streams and rivers: A review of primary biogeochemical pathways and environmental variables

Earth-Science Reviews, Journal Year: 2019, Volume and Issue: 191, P. 224 - 262

Published: Feb. 21, 2019

Language: Английский

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Globally important nitrous oxide emissions from croplands induced by freeze–thaw cycles

Nature Geoscience, Journal Year: 2017, Volume and Issue: 10(4), P. 279 - 283

Published: March 6, 2017

Language: Английский

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Comammox—a newly discovered nitrification process in the terrestrial nitrogen cycle

Journal of Soils and Sediments, Journal Year: 2017, Volume and Issue: 17(12), P. 2709 - 2717

Published: Oct. 18, 2017

Language: Английский

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Functional Relationships of Soil Acidification, Liming, and Greenhouse Gas Flux

Advances in agronomy, Journal Year: 2016, Volume and Issue: unknown, P. 1 - 71

Published: Jan. 1, 2016

Language: Английский

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Anammox granular sludge in low-ammonium sewage treatment: Not bigger size driving better performance

Water Research, Journal Year: 2018, Volume and Issue: 142, P. 147 - 158

Published: May 29, 2018

Language: Английский

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Emergent Properties of Microbial Activity in Heterogeneous Soil Microenvironments: Different Research Approaches Are Slowly Converging, Yet Major Challenges Remain

Frontiers in Microbiology, Journal Year: 2018, Volume and Issue: 9

Published: Aug. 27, 2018

Over the last 60 years, soil microbiologists have accumulated a wealth of experimental data showing that usual bulk, macroscopic parameters used to characterize soils (e.g., granulometry, pH, organic matter and biomass contents) provide insufficient information describe quantitatively activity microorganisms some its outcomes, like emission greenhouse gases. Clearly, new, more appropriate are needed, which reflect better spatial heterogeneity at microscale (i.e., pore scale). For long time, spectroscopic microscopic tools were lacking quantify processes scale, but major technological advances over 15 years made suitable equipment available researchers. In this context, objective present article is review progress achieved date in significant research program has ensued. This can be rationalized as sequence steps, namely quantification modeling physical-, (bio)chemical-, microbiological properties soils, integration these different perspectives into unified theory, upscaling and, eventually, development new approaches measure characteristics. At stage, been on physical front, lesser extent (bio)chemical one well, both terms experiments modeling. microbial aspects, whereas lot work devoted bacterial fungal appropriateness model assumptions cannot readily assessed because relevant extremely scarce. overall move forward, it will crucial make sure components systems does not keep lagging behind Concerning subsequent steps program, very little various disciplinary occurred so far, result, researchers yet able tackle scaling up level. Many challenges, them daunting, remain path ahead.

Language: Английский

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Hydrogen peroxide detoxification is a key mechanism for growth of ammonia-oxidizing archaea

Proceedings of the National Academy of Sciences, Journal Year: 2016, Volume and Issue: 113(28), P. 7888 - 7893

Published: June 23, 2016

Ammonia-oxidizing archaea (AOA), that is, members of the Thaumarchaeota phylum, occur ubiquitously in environment and are major significance for global nitrogen cycling. However, controls on cell growth organic carbon assimilation by AOA poorly understood. We isolated an ammonia-oxidizing archaeon (designated strain DDS1) from seawater used this organism to study physiology ammonia oxidation. These findings were confirmed using four additional strains both marine terrestrial habitats. Ammonia oxidation DDS1 was enhanced coculture with other bacteria, as well artificial media supplemented α-keto acids (e.g., pyruvate, oxaloacetate). α-Keto acid-enhanced activity has previously been interpreted evidence mixotrophy. assays heterotrophic indicated incorporation pyruvate into archaeal membrane lipids negligible. Lipid atoms were, instead, derived dissolved inorganic carbon, indicating strict autotrophic growth. spontaneously detoxify H2O2 via a nonenzymatic decarboxylation reaction, suggesting role scavengers. Indeed, agents also scavenge H2O2, such dimethylthiourea catalase, replaced acid requirement, enhancing DDS1. In fact, absence acids, isolates shown endogenously produce (up ∼4.5 μM), which inhibitory Genomic analyses catalase genes largely absent AOA. Our results indicate broadly feature nutrition implicate important factor determining activity, evolution, community ecology ecotypes.

Language: Английский

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BIOCHAR AS A TOOL TO REDUCE THE AGRICULTURAL GREENHOUSE-GAS BURDEN – KNOWNS, UNKNOWNS AND FUTURE RESEARCH NEEDS

Journal of Environmental Engineering and Landscape Management, Journal Year: 2017, Volume and Issue: 25(2), P. 114 - 139

Published: June 28, 2017

Agriculture and land use change has significantly increased atmospheric emissions of the non-CO2 green-house gases (GHG) nitrous oxide (N2O) methane (CH4). Since human nutritional bioenergy needs continue to increase, at a shrinking global area for production, novel management strategies are required that reduce GHG footprint per unit yield. Here we review potential biochar N2O CH4 from agricultural practices including mechanisms behind observed effects. Furthermore, investigate alternative uses in may GHG-emissions-per-unit-of-product footprint, such as (i) pyrolysis manures hygienic direct soil application, (ii) using fertilizer carrier matrix underfoot fertilization, (iii) composting additive or (iv) feed animal husbandry manure treatment. We conclude largest future research lay conducting life-cycle assessments when an on-farm tool nutrient-rich biomass waste streams.

Language: Английский

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