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In situ distribution and activity of nitrifying bacteria in freshwater sediment

Title data

Altmann, Dörte ; Stief, Peter ; Amann, Rudolf ; de Beer, Dirk ; Schramm, Andreas:
In situ distribution and activity of nitrifying bacteria in freshwater sediment.
In: Environmental Microbiology. Vol. 5 (2003) Issue 9 . - pp. 798-803.
ISSN 1462-2920
DOI: https://doi.org/10.1046/j.1469-2920.2003.00469.x

Abstract in another language

Nitrification was investigated in a model freshwater sediment by the combined use of microsensors and fluorescence in situ hybridization with rRNA-targeted oligonucleotide probes. In situ nitrification activity was restricted mainly to the upper 2 mm of the sediment and coincided with the maximum abundance of nitrifying bacteria, i.e. 1.5·10^7 cells cm-3 for ammonia-oxidizing Beta-proteobacteria (AOB) and 8.6·10^7 cells cm-3 for Nitrospira-like nitrite-oxidizing bacteria (NOB). Cell numbers of AOB decreased more rapidly with depth than numbers of NOB. For the first time, Nitrospira-like bacteria could be quantified and correlated with in situ nitrite oxidation rates in a sediment. Estimated cell-specific nitrite oxidation rates were 1.2-2.7 fmol NO2- cell-1 h-1.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER17559
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 24 Sep 2015 09:38
Last Modified: 24 Sep 2015 09:38
URI: https://eref.uni-bayreuth.de/id/eprint/19566