Fertilizer N triggers native soil N-derived N2O emissions by priming gross N mineralization

Soil Biology and Biochemistry, Год журнала: 2023, Номер 178, С. 108961 - 108961

Опубликована: Янв. 19, 2023

Язык: Английский

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Phosphorus-mediated succession of microbial nitrogen, carbon, and sulfur functions in rice-driven saline-alkali soil remediation

Soil Biology and Biochemistry, Год журнала: 2023, Номер 184, С. 109125 - 109125

Опубликована: Июль 14, 2023

Although rice cultivation holds potential for restoring unproductive saline-alkali soils and increasing food production, the mechanisms underlying relationship between microbial functions soil element turnover remain unclear. To clarify this relationship, study investigated physicochemical properties during remediation in by over 2, 4, 6, 8, 11, 12, 20, 23 years. The results indicated markedly improved nutrients, nutrient stoichiometry, aggregate stability. Additionally, significantly increased involved cycling, such as nitrogen fixation, carbon methanogenesis, dissimilatory sulfate reduction, thiosulfate oxidation. However, these (N), (C), sulfur (S) cycle-related exhibited a similar "increase-peak-decrease" successional pattern with years of remediation, reaching optimal levels when was continuously grown 11–16 Furthermore, correlation analysis demonstrated that succession N, C, S restoration closely related to changes properties, particularly availability phosphorus (P). Therefore, we propose prioritize management P remediation. In conclusion, provides comprehensive understanding mediated crop.

Язык: Английский

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Increased Nitrogen Loading Facilitates Nitrous Oxide Production through Fungal and Chemodenitrification in Estuarine and Coastal Sediments

Environmental Science & Technology, Год журнала: 2023, Номер 57(6), С. 2660 - 2671

Опубликована: Фев. 3, 2023

Estuarine and coastal environments are assumed to contribute nitrous oxide (N2O) emissions under increasing nitrogen loading. However, isotopic molecular mechanisms underlying N2O production pathways elevated concentration remain poorly understood. Here we used microbial inhibition, isotope mass balance, approaches investigate in estuarine sediments through a series of anoxic incubations. Site preference the molecule increased due nitrate concentration, suggesting changes pathways. Enhanced high was not mediated by bacterial denitrification, but instead mainly regulated fungal denitrification. Elevated contribution denitrification 11-25%, whereas it decreased 16-33%. Chemodenitrification also enhanced contributing 13-28% production. significantly nirK-type denitrifiers structure abundance, which keystone taxa driving Collectively, these results suggest that can shift from chemodenitrification, responsible for have widespread implications projections ongoing pollution ecosystems.

Язык: Английский

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Phylogenetics and environmental distribution of nitric oxide forming nitrite reductases reveals their distinct functional and ecological roles

ISME Communications, Год журнала: 2024, Номер unknown

Опубликована: Фев. 2, 2024

Abstract The two evolutionary unrelated nitric oxide-producing nitrite reductases NirK and NirS are best known for their redundant role in denitrification. They also often found organisms that do not perform To assess the functional roles of enzymes to address sequence structural variation within each, we reconstructed robust phylogenies both proteins with sequences recovered from 6973 isolate metagenome-assembled genomes identified 32 well-supported clades structurally distinct protein lineages. We then inferred potential niche each clade by considering other genes carrying them, as well relative abundances nir gene 4082 environmental metagenomes across diverse aquatic, terrestrial, host-associated, engineered biomes. demonstrate Nir recapitulate ecology distinctly corresponding organismal phylogeny. While some reductase were equally prevalent biomes, others had more restricted ranges. Nitrifiers make up a sizeable proportion reducing community, especially marine surface waters dry soils. Furthermore, showed associations involved oxidising compounds, indicating activity may be linked different elemental cycles. Accordingly, abundance diversity vs. varies between Our results show divergent ecological NirS-encoding play environment provide phylogenetic framework distinguish traits associated encoding lineages reductases.

Язык: Английский

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Harnessing the potential of sugarcane-based liquid byproducts—molasses and spentwash (vinasse) for enhanced soil health and environmental quality. A systematic review

Frontiers in Agronomy, Год журнала: 2024, Номер 6

Опубликована: Фев. 27, 2024

Farming practices reliant solely on synthetic agrochemicals face unreliability in the current era marked by unpredictable climate changes and rapid soil health deterioration. Consequently, a shift towards sustainable approaches is imperative to ensure both food security environmental quality. Molasses vinasse, abundant organic liquid by-products from sugar processing distillery industries respectively, have historically served as conditioners biofertilizers. Despite their potential, effectiveness amendments remain relatively unknown globally. In response, we conducted systematic literature review unveil benefits of molasses vinasse amendments. Our findings reveal that these consist inorganic compounds enhance aquatic ecosystem performance. These include essential plant nutrients mineral elements matter, contributing improved physico-chemical biological properties. Notably, application crop production has demonstrated superiority over chemical fertilizers, particularly when combined with other been reported significantly increase yield several crops including sugarcane ( Saccharum officinarum ), tomatoes Solanum lycopersicum soybean Glycine max maize Zea mays ) rice Oryza sativa ). Strategic utilization potential quality reducing heavy metal loads mitigating negative impacts associated fertilizers. However, it crucial note irregular disposal or misuse can result detrimental effects environment human health. To encourage global scale, establish appropriate dosages, raise awareness among farmers stakeholders regarding judicious use, develop effective methods for handling vinasse. This approach ensures cost-effective environmentally friendly amendments, fostering harmonious balance between agricutural productivity ecological well-being.

Язык: Английский

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Soil pH determines the shift of key microbial energy metabolic pathways associated with soil nutrient cycle

Applied Soil Ecology, Год журнала: 2025, Номер 208, С. 105992 - 105992

Опубликована: Март 1, 2025

Язык: Английский

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nirS and nosZII bacterial denitrifiers as well as fungal denitrifiers are coupled with N2O emissions in long-term fertilized soils

The Science of The Total Environment, Год журнала: 2023, Номер 897, С. 165426 - 165426

Опубликована: Июль 8, 2023

Язык: Английский

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AOB Nitrosospira cluster 3a.2 (D11) dominates N2O emissions in fertilised agricultural soils

Journal of Environmental Management, Год журнала: 2024, Номер 355, С. 120504 - 120504

Опубликована: Март 1, 2024

Язык: Английский

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Relative contribution of ammonia-oxidizing bacteria and denitrifying fungi to N2O production during rice straw composting with biochar and biogas residue amendments

Bioresource Technology, Год журнала: 2023, Номер 390, С. 129891 - 129891

Опубликована: Окт. 18, 2023

Язык: Английский

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Exploring the potential of sugarcane straw biochar: Insights into N2O emissions and microbial functional genes

Biomass and Bioenergy, Год журнала: 2024, Номер 182, С. 107070 - 107070

Опубликована: Янв. 24, 2024

Язык: Английский

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