Uncultured <i>Nitrospina</i>-like species are major nitrite oxidizing bacteria in oxygen minimum zones
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- Xin Sun
- Department of Geosciences, Guyot Hall, Princeton University , Princeton, NJ 08544, USA
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- Linnea F M Kop
- Department of Microbiology, Radboud University , Nijmegen, AJ 6525, the Netherlands
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- Maggie C Y Lau
- Department of Geosciences, Guyot Hall, Princeton University , Princeton, NJ 08544, USA
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- Jeroen Frank
- Department of Microbiology, Radboud University , Nijmegen, AJ 6525, the Netherlands
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- Amal Jayakumar
- Department of Geosciences, Guyot Hall, Princeton University , Princeton, NJ 08544, USA
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- Sebastian Lücker
- Department of Microbiology, Radboud University , Nijmegen, AJ 6525, the Netherlands
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- Bess B Ward
- Department of Geosciences, Guyot Hall, Princeton University , Princeton, NJ 08544, USA
書誌事項
- 公開日
- 2019-05-22
- 権利情報
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- https://academic.oup.com/pages/standard-publication-reuse-rights
- http://www.springer.com/tdm
- http://www.springer.com/tdm
- DOI
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- 10.1038/s41396-019-0443-7
- 公開者
- Oxford University Press (OUP)
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p>Oxygen minimum zones (OMZs) are marine regions where O2 is undetectable at intermediate depths. Within OMZs, the oxygen-depleted zone (ODZ) induces anaerobic microbial processes that lead to fixed nitrogen loss via denitrification and anammox. Surprisingly, nitrite oxidation is also detected in ODZs, although all known marine nitrite oxidizers (mainly Nitrospina) are aerobes. We used metagenomic binning to construct metagenome-assembled genomes (MAGs) of nitrite oxidizers from OMZs. These MAGs represent two novel Nitrospina-like species, both of which differed from all known Nitrospina species, including cultured species and published MAGs. Relative abundances of different Nitrospina genotypes in OMZ and non-OMZ seawaters were estimated by mapping metagenomic reads to newly constructed MAGs and published high-quality genomes of members from the Nitrospinae phylum. The two novel species were present in all major OMZs and were more abundant inside ODZs, which is consistent with the detection of higher nitrite oxidation rates in ODZs than in oxic seawaters and suggests novel adaptations to anoxic environments. The detection of a large number of unclassified nitrite oxidoreductase genes in the dataset implies that the phylogenetic diversity of nitrite oxidizers is greater than previously thought.</jats:p>
収録刊行物
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- The ISME Journal
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The ISME Journal 13 (10), 2391-2402, 2019-05-22
Oxford University Press (OUP)
