9/5/2023 0 Comments Msm download tool alternativeoxyfera' bypassed the denitrification intermediate nitrous oxide by the conversion of two nitric oxidemolecules to dinitrogen and oxygen, which was used to oxidize methane. Subsequent isotopic labelling indicated that 'M. This apparently anaerobic, denitrifying bacterium encoded, transcribed and expressed the well-established aerobic pathway for methane oxidation, whereas it lacked known genes for dinitrogen production. The complete genome of the dominant bacterium, named 'Candidatus Methylomirabilis oxyfera', was assembled. The pathway was discovered after metagenomic sequencing of an enrichment culture that couples anaerobic oxidation of methane with the reduction of nitrite to dinitrogen. Here we present evidence for a fourth pathway, possibly of considerable geochemical and evolutionary importance. Only three biological pathways are known to produce oxygen: photosynthesis, chlorate respiration and the detoxification of reactive oxygen species.
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