Comparison of lipid biomarker and gene abundance characterizing the archaeal ammonia-oxidizing community in flooded soils

Bannert, A., Müller-Niggemann, C., Kleineidam, K., Wissing, L., Cao, Z. H., Schwark, L. and Schloter, M. (2011) Comparison of lipid biomarker and gene abundance characterizing the archaeal ammonia-oxidizing community in flooded soils Biology and Fertility of Soils, 47 (7). pp. 839-843. DOI 10.1007/s00374-011-0552-6.

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Abstract

In the last years, archaea have been identified as key players in global N cycling, especially in nitrification. Ammonia-oxidizing archaea (AOA) are postulated to belong to the new phylum Thaumarchaeota for which the lipid crenarchaeol should be specific. The ratios between two independent markers for AOA, the ammonia monooxygenase gene and crenarchaeol have been studied in different aerated soils, but so far not in flooded soils. This study investigated ammonia-oxidizing archaea in four paddy soils and a tidal wetland. Ratios were significantly higher in the paddy soils compared to the tidal wetland and in general higher as in upland soils, leading to the assumption that archaeal ammonia oxidizers different from crenarchaeol-containing Thaumarchaeota may play an important role in paddy soils.

Document Type: Article
Keywords: Ammonia-oxidizing archaea (amoA gene) Paddy soil Tidal wetland Isoprenoidal GDGT Crenarchaeol Caldarchaeol nitrous-oxide nitrification bacteria decay dna
Research affiliation: Kiel University
DOI etc.: 10.1007/s00374-011-0552-6
ISSN: 0178-2762
Date Deposited: 15 Dec 2011 05:21
Last Modified: 08 Oct 2012 09:26
URI: http://eprints.uni-kiel.de/id/eprint/15612

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