Auteurs
Katharina F Ettwig, Margaret K Butler, Denis Le Paslier, Eric Pelletier, Sophie Mangenot, Marcel MM Kuypers, Frank Schreiber, Bas E Dutilh, Johannes Zedelius, Dirk de Beer, Jolein Gloerich, Hans JCT Wessels, Theo van Alen, Francisca Luesken, Ming L Wu, Katinka T van de Pas-Schoonen, Huub JM Op den Camp, Eva M Janssen-Megens, Kees-Jan Francoijs, Henk Stunnenberg, Jean Weissenbach, Mike SM Jetten, Marc Strous
Publicatiedatum
2010/3/25
Tijdschrift
Nature
Volume
464
Editie
7288
Pagina's
543-548
Uitgever
Nature Publishing Group
Beschrijving
Only three biological pathways are known to produce oxygen: photosynthesis, chlorate respiration and the detoxification of reactive oxygen species. Here we present evidence for a fourth pathway, possibly of considerable geochemical and evolutionary importance. The pathway was discovered after metagenomic sequencing of an enrichment culture that couples anaerobic oxidation of methane with the reduction of nitrite to dinitrogen. The complete genome of the dominant bacterium, named ‘Candidatus Methylomirabilis oxyfera’, was assembled. 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. Subsequent isotopic labelling indicated that ‘M. oxyfera’ bypassed the denitrification intermediate nitrous oxide by the conversion of two nitric oxide molecules to …
Totaal aantal citaties
Scholar-artikelen
KF Ettwig, MK Butler, D Le Paslier, E Pelletier… - Nature, 2010