Can midseason drainage mitigate methane emissions from a paddy field with milk vetch (Astragalus sinicus L.) incorporation?

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 239, P. 106026 - 106026

Published: Feb. 13, 2024

Language: Английский

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Accelerating electron transfer reduces CH4 and CO2 emissions in paddy soil

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 124044 - 124044

Published: Jan. 10, 2025

Language: Английский

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Straw-Mediated Ch4 Production Via Distinct Methanogenic Pathways in Two Paddy Soils

Published: Jan. 1, 2025

Language: Английский

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Inoculations of phosphorus-solubilizing bacteria alter soil properties, microbial communities, and improve crop yield and fruit quality in the tomato production system

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 207, P. 105944 - 105944

Published: Feb. 8, 2025

Language: Английский

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Regulation of organic matter Consumption, Nitrification, and iron reduction using magnetite nanoparticles in paddy Soil: Implications for anaerobic carbon sequestration

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160478 - 160478

Published: Feb. 1, 2025

Language: Английский

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Cometabolism of ferrihydrite reduction and methyl-dismutating methanogenesis by Methanosarcina mazei

Applied and Environmental Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

ABSTRACT Recent discoveries have shown that some Methanosarcina species can reduce Fe(III), reshaping our understanding of ecophysiology. However, the specific minerals reduced, products formed, and underlying metabolic mechanisms remain elusive. Here, we report on cometabolic process Fe(III) reduction methylotrophic methanogenesis in mazei zm-15. Biogeochemical mineralogical analyses were conducted to investigate from three mineral preparations—ferrihydrite, goethite, hematite. The results revealed 38% 6 mM ferrihydrite was reduced within 4 days, this percentage increased 75% with addition 100 µM anthraquinone-2,6-disulfonate (AQDS). Active occurred immediately preceded rapid methanogenesis. AQDS together significantly enhanced maximal CH₄ production rate. did not occur goethite or hematite, even AQDS. Vivianite identified as major product reduction. Transcriptomic analysis gene expression related oxidation branch methyl-dismutating pathway membrane-associated electron transport chain (ETC) upregulated, whereas expressions genes associated downregulated. In conclusion, M. zm-15 demonstrates a strong ability poorly crystalline ferrihydrite, but highly During cometabolism methanol, methyl-oxidation membrane ETC pathways are enhanced, while methyl-reduction is mechanism relay cells however, remains unclear warrants further investigation. IMPORTANCE recent discovery certain grow by reducing challenges traditional methanogens. largely unexplored. Using combination biogeochemical, mineralogical, microbiological approaches, investigated It exhibited capacity formation vivianite likely due high rate presence excess phosphorus incubations. CH Our research uncovers differential regulation during methanol. findings shed new light adaptive strategies employed environments suggestthat play significant role methane iron cycling natural environments.

Language: Английский

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Application of Calcium Peroxide for Methane Mitigation in Paddy Fields: Effects of Milk Vetch (Astragalus sinicus L.) Incorporation

Agriculture, Journal Year: 2025, Volume and Issue: 15(5), P. 520 - 520

Published: Feb. 27, 2025

Addressing the pressing issue of global warming, sustainable rice cultivation strategies are crucial. Milk vetch (MV), a common green manure in paddies, has been shown to increase CH4 emissions, necessitating effective mitigation. This two-year field experiment assessed impact applying calcium peroxide (CaO2), widely used wastewater treatment and soil remediation due its oxygen-releasing properties, on emissions conventional paddy fields (chemical fertilizer-only) MV-incorporated fields. The results revealed that fields, CaO2 application significantly reduced average by 19% without affecting yield. Compared with chemical fertilizer alone, MV incorporation increased yield 12% but elevated emissions. However, incorporation, while preserving benefits MV. Soil analyses indicated led carbon content mcrA pmoA gene copy numbers, numbers being primarily responsible for promoted improved redox potential, reducing copies consequently mitigating Overall, can contribute efforts reduce supporting productivity.

Language: Английский

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Soil microbiome community composition shaped by soil depth in a wetland with diel variations in methane emissions

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 208, P. 106005 - 106005

Published: March 4, 2025

Language: Английский

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Methanogenic and methanotrophic communities determine lower CH4 fluxes in a subtropical paddy field under long-term elevated CO2

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 904, P. 166904 - 166904

Published: Sept. 7, 2023

Language: Английский

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Progress of Crude Oil Gasification Technology Assisted by Microorganisms in Reservoirs

Microorganisms, Journal Year: 2024, Volume and Issue: 12(4), P. 702 - 702

Published: March 29, 2024

Crude oil gasification bacteria, including fermenting hydrocarbon-oxidizing reducing and methanogenic participate in multi-step reactions involving initial activation, intermediate metabolism, the methanogenesis of crude hydrocarbons. These bacteria degrade into smaller molecules such as hydrogen, carbon dioxide, acetic acid, formic acid. Ultimately, they convert it methane, which can be utilized or stored a strategic resource. However, current challenges include long production cycles low efficiency. This paper provides summary microbial flora involved gasification, metabolism pathways within reservoirs, other relevant information. It specifically focuses on analyzing factors that affect efficiency proposes suggestions for improving this studies deepen our understanding potential reservoir ecosystems provide valuable insights future development management.

Language: Английский

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