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Expression of nitrite and NO reductases in most denitrifiers is more tightly controlled, with expression only occurring under micro-oxic conditions. A possible exception to this may be Roseobacter denitrificans, but the physiological role of these enzymes under oxic conditions is uncertain.<\/jats:p>","DOI":"10.1042\/bst0390179","type":"journal-article","created":{"date-parts":[[2011,1,26]],"date-time":"2011-01-26T12:25:37Z","timestamp":1296044737000},"page":"179-183","update-policy":"https:\/\/doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Oxygen control of nitrogen oxide respiration, focusing on \u03b1-proteobacteria"],"prefix":"10.1042","volume":"39","author":[{"given":"James\u00a0P.","family":"Shapleigh","sequence":"first","affiliation":[{"name":"Department of Microbiology, Cornell University, Ithaca, NY 14853, U.S.A."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"288","published-online":{"date-parts":[[2011,1,19]]},"reference":[{"key":"2021111823530122500_B1","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1038\/nature06592","article-title":"An Earth-system perspective of the global nitrogen cycle","volume":"451","author":"Gruber","year":"2008","journal-title":"Nature"},{"key":"2021111823530122500_B2","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1111\/j.1744-7909.2008.00700.x","article-title":"Perspectives in biological nitrogen fixation research","volume":"50","author":"Cheng","year":"2008","journal-title":"J. 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