دورية أكاديمية
أعرض في EDS

Molecular evidence for stimulation of methane oxidation in Amazonian floodplains by ammonia-oxidizing communities.

التفاصيل البيبلوغرافية
العنوان: Molecular evidence for stimulation of methane oxidation in Amazonian floodplains by ammonia-oxidizing communities.
المؤلفون: Monteiro GGTN; Federal Rural University of Amazonia (UFRA), Belém, Brazil., Barros DJ; Graduate Program in Biodiversity and Biotechnology (BIONORTE), Federal University of Tocantins (UFT), Palmas, Brazil., Gabriel GVM; Graduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), Sorocaba, Brazil., Venturini AM; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, Brazil.; Princeton Institute for International and Regional Studies, Princeton University, Princeton, NJ, United States., Veloso TGR; Graduate Program in Agricultural Microbiology, Federal University of Viçosa, Viçosa, Brazil., Vazquez GH; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, Brazil., Oliveira LC; Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos (UFSCar), Sorocaba, Brazil., Neu V; Federal Rural University of Amazonia (UFRA), Belém, Brazil., Bodelier PLE; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands., Mansano CFM; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, Brazil., Tsai SM; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, Brazil., Navarrete AA; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, Brazil.; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, Brazil.
المصدر: Frontiers in microbiology [Front Microbiol] 2022 Aug 01; Vol. 13, pp. 913453. Date of Electronic Publication: 2022 Aug 01 (Print Publication: 2022).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101548977 Publication Model: eCollection Cited Medium: Print ISSN: 1664-302X (Print) Linking ISSN: 1664302X NLM ISO Abbreviation: Front Microbiol Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Lausanne : Frontiers Research Foundation
مستخلص: Ammonia oxidation is the rate-limiting first step of nitrification and a key process in the nitrogen cycle that results in the formation of nitrite (NO 2 - ), which can be further oxidized to nitrate (NO 3 - ). In the Amazonian floodplains, soils are subjected to extended seasons of flooding during the rainy season, in which they can become anoxic and produce a significant amount of methane (CH 4 ). Various microorganisms in this anoxic environment can couple the reduction of different ions, such as NO 2 - and NO 3 - , with the oxidation of CH 4 for energy production and effectively link the carbon and nitrogen cycle. Here, we addressed the composition of ammonium (NH 4 + ) and NO 3 - -and NO 2 - -dependent CH 4 -oxidizing microbial communities in an Amazonian floodplain. In addition, we analyzed the influence of environmental and geochemical factors on these microbial communities. Soil samples were collected from different layers of forest and agroforest land-use systems during the flood and non-flood seasons in the floodplain of the Tocantins River, and next-generation sequencing of archaeal and bacterial 16S rRNA amplicons was performed, coupled with chemical characterization of the soils. We found that ammonia-oxidizing archaea (AOA) were more abundant than ammonia-oxidizing bacteria (AOB) during both flood and non-flood seasons. Nitrogen-dependent anaerobic methane oxidizers (N-DAMO) from both the archaeal and bacterial domains were also found in both seasons, with higher abundance in the flood season. The different seasons, land uses, and depths analyzed had a significant influence on the soil chemical factors and also affected the abundance and composition of AOA, AOB, and N-DAMO. During the flood season, there was a significant correlation between ammonia oxidizers and N-DAMO, indicating the possible role of these oxidizers in providing oxidized nitrogen species for methanotrophy under anaerobic conditions, which is essential for nitrogen removal in these soils.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2022 Monteiro, Barros, Gabriel, Venturini, Veloso, Vazquez, Oliveira, Neu, Bodelier, Mansano, Tsai and Navarrete.)
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فهرسة مساهمة: Keywords: 16S rRNA sequencing; Thaumarchaeota; ammonia oxidation; methanotrophs; tropical floodplains
تواريخ الأحداث: Date Created: 20220818 Latest Revision: 20231102
رمز التحديث: 20231102
مُعرف محوري في PubMed: PMC9376453
DOI: 10.3389/fmicb.2022.913453
PMID: 35979497
قاعدة البيانات: MEDLINE
الوصف
تدمد:1664-302X
DOI:10.3389/fmicb.2022.913453