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Uncultured Nitrospina-like species are major nitrite oxidizing bacteria in oxygen minimum zones
Sun, Xin1; Kop, Linnea F. M.2; Lau, Maggie C. Y.1,3; Frank, Jeroen2; Jayakumar, Amal1; Lucker, Sebastian2; Ward, Bess B.1
2019-10-01
Source PublicationISME JOURNAL
ISSN1751-7362
Volume13Issue:10Pages:2391-2402
Abstract

Oxygen minimum zones (OMZs) are marine regions where O-2 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.

DOI10.1038/s41396-019-0443-7
Indexed BySCI
Funding OrganizationNSF ; Netherlands Organization for Scientific Research
Language英语
Funding ProjectNSF ; Netherlands Organization for Scientific Research[863.14.019] ; Netherlands Organization for Scientific Research[016.Vidi.189.050] ; Netherlands Organization for Scientific Research[024.002.002]
WOS KeywordBinning Metagenomic Contigs ; Read Alignment ; Arabian Sea ; Nitrogen ; Oxidation ; Sequence ; Tool ; Algorithm ; Coverage ; Genomes
WOS Research AreaEnvironmental Sciences & Ecology ; Microbiology
WOS SubjectEcology ; Microbiology
WOS IDWOS:000486388600001
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/6988
Collection深海科学研究部_地外海洋系统研究室
Corresponding AuthorSun, Xin
Affiliation1.Princeton Univ, Dept Geosci, Guyot Hall, Princeton, NJ 08544 USA
2.Radboud Univ Nijmegen, Dept Microbiol, NL-6525 AJ Nijmegen, Netherlands
3.Chinese Acad Sci, Lab Extraterr Ocean Syst, Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China
Recommended Citation
GB/T 7714
Sun, Xin,Kop, Linnea F. M.,Lau, Maggie C. Y.,et al. Uncultured Nitrospina-like species are major nitrite oxidizing bacteria in oxygen minimum zones[J]. ISME JOURNAL,2019,13(10):2391-2402.
APA Sun, Xin.,Kop, Linnea F. M..,Lau, Maggie C. Y..,Frank, Jeroen.,Jayakumar, Amal.,...&Ward, Bess B..(2019).Uncultured Nitrospina-like species are major nitrite oxidizing bacteria in oxygen minimum zones.ISME JOURNAL,13(10),2391-2402.
MLA Sun, Xin,et al."Uncultured Nitrospina-like species are major nitrite oxidizing bacteria in oxygen minimum zones".ISME JOURNAL 13.10(2019):2391-2402.
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