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Complete nitrification by Nitrospira bacteria

Nature (London), 2015-12, Vol.528 (7583), p.504-509 [Peer Reviewed Journal]

COPYRIGHT 2015 Nature Publishing Group ;COPYRIGHT 2015 Nature Publishing Group ;Copyright Nature Publishing Group Dec 24-Dec 31, 2015 ;ISSN: 0028-0836 ;EISSN: 1476-4687 ;DOI: 10.1038/nature16461 ;PMID: 26610024 ;CODEN: NATUAS

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Title:
Complete nitrification by Nitrospira bacteria
Author: Daims, Holger ; Lebedeva, Elena V ; Pjevac, Petra ; Han, Ping ; Herbold, Craig ; Albertsen, Mads ; Jehmlich, Nico ; Palatinszky, Marton ; Vierheilig, Julia ; Bulaev, Alexandr ; Kirkegaard, Rasmus H ; von Bergen, Martin ; Rattei, Thomas ; Bendinger, Bernd ; Nielsen, Per H ; Wagner, Michael
Subjects: Ammonia ; Ammonia - metabolism ; Analysis ; Bacteria ; Bacteria - enzymology ; Bacteria - genetics ; Bacteria - growth & development ; Bacteria - metabolism ; Enzymes ; Evolution, Molecular ; Genome, Bacterial - genetics ; Genomes ; Hydroxides ; Metabolism ; Molecular Sequence Data ; Nitrates - metabolism ; Nitrification ; Nitrification - genetics ; Nitrites - metabolism ; Organisms ; Oxidation-Reduction ; Oxidoreductases - genetics ; Oxidoreductases - metabolism ; Phylogeny ; Studies
Is Part Of: Nature (London), 2015-12, Vol.528 (7583), p.504-509
Description: Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be a two-step process catalysed by chemolithoautotrophic microorganisms oxidizing either ammonia or nitrite. No known nitrifier carries out both steps, although complete nitrification should be energetically advantageous. This functional separation has puzzled microbiologists for a century. Here we report on the discovery and cultivation of a completely nitrifying bacterium from the genus Nitrospira, a globally distributed group of nitrite oxidizers. The genome of this chemolithoautotrophic organism encodes the pathways both for ammonia and nitrite oxidation, which are concomitantly activated during growth by ammonia oxidation to nitrate. Genes affiliated with the phylogenetically distinct ammonia monooxygenase and hydroxylamine dehydrogenase genes of Nitrospira are present in many environments and were retrieved on Nitrospira-contigs in new metagenomes from engineered systems. These findings fundamentally change our picture of nitrification and point to completely nitrifying Nitrospira as key components of nitrogen-cycling microbial communities.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 0028-0836
EISSN: 1476-4687
DOI: 10.1038/nature16461
PMID: 26610024
CODEN: NATUAS
Source: ProQuest One Psychology
MEDLINE
ProQuest Central

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Complete nitrification by Nitrospira bacteria

COPYRIGHT 2015 Nature Publishing Group ;COPYRIGHT 2015 Nature Publishing Group ;Copyright Nature Publishing Group Dec 24-Dec 31, 2015 ;ISSN: 0028-0836 ;EISSN: 1476-4687 ;DOI: 10.1038/nature16461 ;PMID: 26610024 ;CODEN: NATUAS

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