Fractionation of stable carbon isotopes during microbial propionate consumption in anoxic rice paddy soils
Abstract ε CH 4 CO 2 CH 3 F), an inhibitor of aceticlastic methanogenesis. Under methanogenic conditions, propionate was eventually degraded to CH 4 CH 3 F. Butyrate and CH 4 13 C -depleted relative to propionate, whereas acetate and CO 2 13 C -enriched. The isotopic enrichment factors (ε prop - - CH 4 CH 3 F hardly affected propionate degradation and acetate accumulation. The initially produced CO 2 13 C -depleted, whereas the acetate was 13 C -enriched. The values of ε prop - CO 2 involves only a little isotope fractionation. The results further indicate a major contribution of Syntrophobacter-type propionate fermentation under sulfidogenic conditions and Smithella-type propionate fermentation under methanogenic conditions. This interpretation is consistent with data regarding the microbial community composition published previously for the same soils.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Fractionation of stable carbon isotopes during microbial propionate consumption in anoxic rice paddy soils ; volume:20 ; number:17 ; year:2023 ; pages:3625-3635 ; extent:11
Biogeosciences ; 20, Heft 17 (2023), 3625-3635 (gesamt 11)
- Urheber
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Conrad, Ralf
Claus, Peter
- DOI
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10.5194/bg-20-3625-2023
- URN
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urn:nbn:de:101:1-2023090704545703602779
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:49 MESZ
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Beteiligte
- Conrad, Ralf
- Claus, Peter
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