Anaerobic oxidation of methane coupled to nitrate reduction in a novel archaeal lineage

@article{Haroon2013AnaerobicOO,
  title={Anaerobic oxidation of methane coupled to nitrate reduction in a novel archaeal lineage},
  author={Mohamed Fauzi Haroon and Shihu Hu and Yinguen Shi and Michael Imelfort and Jurg Keller and P. Bernt Hugenholtz and Zhiguo Yuan and Gene W. Tyson},
  journal={Nature},
  year={2013},
  volume={500},
  pages={567-570}
}
Anaerobic oxidation of methane (AOM) is critical for controlling the flux of methane from anoxic environments. AOM coupled to iron, manganese and sulphate reduction have been demonstrated in consortia containing anaerobic methanotrophic (ANME) archaea. More recently it has been shown that the bacterium Candidatus ‘Methylomirabilis oxyfera’ can couple AOM to nitrite reduction through an intra-aerobic methane oxidation pathway. Bioreactors capable of AOM coupled to denitrification have resulted… Expand
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Microbially mediated anaerobic oxidation of methane (AOM) is a key process in the regulation of methane emissions to the atmosphere. Iron can serve as an electron acceptor for AOM, and it has beenExpand
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TLDR
This review summarizes the mechanisms and associated microbes of AOM, including ANME‐1 in hypersaline environments, the effect of oxygen on M. oxyfera, and the relationship of M. nitroreducens with ANME. Expand
Anaerobic methane oxidation coupled to manganese reduction by members of the Methanoperedenaceae
TLDR
The ability of members of the Methanoperedenaceae to couple AOM to the reduction of Mn(IV) oxides is demonstrated, which suggests their potential role in linking methane and manganese cycling in the environment. Expand
A Metagenomics-Based Metabolic Model of Nitrate-Dependent Anaerobic Oxidation of Methane by Methanoperedens-Like Archaea
TLDR
A tentative model of how central energy metabolism of nitrate-AOM could work is presented and discussed, and a variety of enzymes involved in an electron transport chain similar to those found in Methanosarcina species are presented. Expand
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TLDR
Evidence for a complete and functioning AOM pathway in ANME-2a is provided and it is demonstrated to possess versatile electron transfer pathways that would provide the organism with more flexibility in substrate utilization and capacity for rapid adjustment to fluctuating environments. Expand
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TLDR
Comparisons of 16 Methanoperedenaceae metagenome-assembled genomes revealed novel respiratory strategies acquired through lateral gene transfer (LGT) events from diverse archaea and bacteria, suggesting their role in linking methane oxidation to several global biogeochemical cycles. Expand
Nitrate- and nitrite-dependent anaerobic oxidation of methane.
TLDR
The recent finding of the intriguing nitrate- and nitrite-dependent anaerobic oxidation of methane (AOM) is reviewed. Expand
Simultaneous nitrate and sulfate dependent anaerobic oxidation of methane linking carbon, nitrogen and sulfur cycles.
TLDR
Simultaneous nitrate- and sulfate-dependent AOM can be mediated by a clade of ANME archaea, which may occur in estuaries and coastal zones, at the interface of marine and freshwater environments enriched with sulfate and nitrate. Expand
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TLDR
Fluorescence in situ hybridization images and metagenome results suggest that Methanobacterium spp. Expand
Anaerobic Oxidation of Methane Coupled to Nitrite Reduction by Halophilic Marine NC10 Bacteria
TLDR
The effect of salinity on the marine denitrifying methanotrophic culture was investigated, and the apparent optimal salinity was 20.5‰, which suggested that halophilic bacterial AOM coupled to nitrite reduction was obtained. Expand
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