The DOI matches its Crossref record; 74 of the 74 references it cites were found in a registry or an index.
Expanded metabolic versatility of ubiquitous nitrite-oxidizing bacteria from the genus Nitrospira
Open accessAbstract
Significance: Nitrification, the sequential aerobic oxidation of ammonia via nitrite to nitrate, is a key process of the biogeochemical nitrogen cycle and catalyzed by two aerobic microbial guilds (nitrifiers): ammonia oxidizers and nitrite-oxidizing bacteria (NOB). NOB are generally considered as metabolically restricted and dependent on ammonia oxidizers. Here, we report that, surprisingly, key NOB of many ecosystems ( Nitrospira ) convert urea, an important ammonia source in nature, to ammonia and CO 2 . Thus, Nitrospira supply urease-negative ammonia oxidizers with ammonia and receive nitrite produced by ammonia oxidation in return, leading to a reciprocal feeding interaction of nitrifiers. Moreover, Nitrospira couple formate oxidation with nitrate reduction to remain active in anoxia. Accordingly, Nitrospira are unexpectedly flexible and contribute to nitrogen cycling beyond nitrite oxidation.
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Complete nitrification by Nitrospira bacteria
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Metadata
- Authors
- Koch, H., Lücker, S., Albertsen, M., Kitzinger, K., Herbold, C., Spieck, E., Nielsen, P. H., Wagner, M., & Daims, H.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2015-08-24
- Volume
- 112
- Issue
- 36
- Pages
- 11371-11376
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2155704095
- Cited by
- 549
- References
- 74
- FWCI
- 23.17
- Type
- journal article
- Language
- en
- Open access
- bronze
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