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Curr Opin Biotechnol. 2001 Jun;12(3):283-8.

Microbiology and application of the anaerobic ammonium oxidation ('anammox') process.

Author information

1
Department of Microbiology, University of Nijmegen, Toernooiveld 1, NL 6525, ED, Nijmegen, The Netherlands. m.jetten@sci.kun.nl

Abstract

Ten years ago, an anaerobic ammonium oxidation ('anammox') process was discovered in a denitrifying pilot plant reactor. From this system, a highly enriched microbial community was obtained, dominated by a single deep-branching planctomycete, Candidatus Brocadia anammoxidans. Phylogenetic inventories of different wastewater treatment plants with anammox activity have suggested that at least two genera in Planctomycetales can catalyse the anammox process. Electron microscopy of the ultrastructure of B. anammoxidans has shown that several membrane-bounded compartments are present inside the cytoplasm. Hydroxylamine oxidoreductase, a key anammox enzyme, is found exclusively inside one of these compartments, tentatively named the 'anammoxosome'.

PMID:
11404106
[Indexed for MEDLINE]

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