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Ammonia concentration determines differential growth of ammonia-oxidising archaea and bacteria in soil microcosms

Open access
Verhamme, Daniel T, Prosser, James I, Nicol, Graeme W·2011·The ISME Journal

Abstract

The first step of nitrification, oxidation of ammonia to nitrite, is performed by both ammonia-oxidising archaea (AOA) and ammonia-oxidising bacteria (AOB) in soil, but their relative contributions to ammonia oxidation and existence in distinct ecological niches remain to be determined. To determine whether available ammonia concentration has a differential effect on AOA and AOB growth, soil microcosms were incubated for 28 days with ammonium at three concentrations: native (control), intermediate (20 μg NH4+-N per gram of soil) and high (200 μg NH4+-N per gram of soil). Quantitative PCR demonstrated growth of AOA at all concentrations, whereas AOB growth was prominent only at the highest concentration. Similarly, denaturing gradient gel electrophoresis (DGGE) analysis revealed changes in AOA communities at all ammonium concentrations, whereas AOB communities changed significantly only at the highest ammonium concentration. These results provide evidence that ammonia concentration contributes to the definition of distinct ecological niches of AOA and AOB in soil.

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Metadata

Authors
Verhamme, D. T., Prosser, J. I., & Nicol, G. W.
Venue
The ISME Journal
Published
2011-01-13
Volume
5
Issue
6
Pages
1067-1071
ISSN
  • 1751-7362 (ISSN-L)
  • 1751-7370
OpenAlex
W2065814234
Cited by
680
References
2
FWCI
66.87
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Ammonia concentration determines differential growth of ammonia-oxidising archaea and bacteria in soil microcosms. https://app.cochat.ai/papers/10.1038/ismej.2010.191
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Verhamme, D. T., Prosser, J. I., & Nicol, G. W. (2011). Ammonia concentration determines differential growth of ammonia-oxidising archaea and bacteria in soil microcosms. The ISME Journal. https://doi.org/10.1038/ismej.2010.191

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