Anamoks
Anamoks (angleško: Anammox, razvezano ANaerobic AMMonium OXidation) ali anaerobna oksidacija amonija je izredno pomemben mikrobiološki proces v sklopu kroženja dušika.[1] Anamoksne bakterije so odkrili 1999; njihov obstoj je bil za stroko veliko presenečenje.[2] Anamoks je razmeroma pogost, poteka predvsem v anaerobnih jezerskih in morskih usedlinah; anammox je tudi zaščiteno ime na anamoksu temelječega postopka za odstranjevanje amonija,[3] ki so ga razvili na Tehniški univerzi v Delftu.
O procesu
Bistvo anamoksa je neposredna pretvorba nitrita in amonija v elementarni dušik. Anamoks svetovno prispeva kar 30-50 % vsega plinastega dušika, proizvedenega v oceanih;[5] s tem omejuje učinek v morjih vezanega dušika.
Katabolna reakcija:
- NH4+ + NO2− → N2 + 2H2O.
Sklici
- ↑ Arrigo, R. A. Marine microorganisms and global nutrient cycles. Nature 437, 349–355 (2005)
- ↑ Strous, M. et al. Missing lithotroph identified as new planctomycete. Nature 400, 446–449 (1999)
- ↑ Jetten Michael Silvester Maria, Van Loosdrecht Marinus Corneli; Technische Universiteit Delft, patent WO9807664 Arhivirano 2012-02-25 at Archive.is
- ↑ Kartal, B. et al. Candidatus 'Brocadia fulgida': an autofluorescent anaerobic ammonium oxidizing bacterium. FEMS Microbiol. Ecol. 63, 46-55 (2008)
- ↑ Devol, A. H. et al. Nitrogen cycle: solution to a marine mystery. Nature 422(6932), 575-576 (2003)
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