{"refrec":{"BRefID":141741,"RR":"<b>Dekas, E.; Poretsky, S.; Orphan, V.J.</b> (2009). Deep-Sea Archaea Fix and Share Nitrogen in Methane-Consuming Microbial Consortia. <i>Science (Wash.) 326(5951)</i>: 422-426. <a href=\"https://dx.doi.org/10.1126/science.1178223\" target=\"_blank\">https://dx.doi.org/10.1126/science.1178223</a>","BEntID":135025,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Science (Wash.) 326(5951)</i>: 422-426. <a href=\"https://dx.doi.org/10.1126/science.1178223\" target=\"_blank\">https://dx.doi.org/10.1126/science.1178223</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Dekas, E.; Poretsky, S.; Orphan, V.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Dekas, E.; Poretsky, S.; Orphan, V.J.","Englishabstract":"Nitrogen-fixing (diazotrophic) microorganisms regulate productivity in diverse ecosystems; however, the identities of diazotrophs are unknown in many oceanic environments. Using single-cell–resolution nanometer secondary ion mass spectrometry images of <sup>15</sup>N incorporation, we showed that deep-sea anaerobic methane-oxidizing archaea fix N<isub>2</sub>, as well as structurally similar CN<sup>–</sup>, and share the products with sulfate-reducing bacterial symbionts. These archaeal/bacterial consortia are already recognized as the major sink of methane in benthic ecosystems, and we now identify them as a source of bioavailable nitrogen as well. The archaea maintain their methane oxidation rates while fixing N<sub>2</sub> but reduce their growth, probably in compensation for the energetic burden of diazotrophy. This finding extends the demonstrated lower limits of respiratory energy capable of fueling N<sub>2</sub> fixation and reveals a link between the global carbon, nitrogen, and sulfur cycles.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Deep-Sea Archaea Fix and Share Nitrogen in Methane-Consuming Microbial Consortia","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-01 01:31:23.562826","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2009-10-28","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000270818600052","VABBcode":null,"OpenAcc":0,"DOI":"10.1126/science.1178223"},"refs":null,"anarec":{"AnaID":141741,"PubliDate":2009,"Pagination":"422-426","XtraPublOfAnaID":null,"ISBN":null,"Volume":"326","Issue":"5951","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43776,"SerRR":"Science (Washington). 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