Enterobacteriaceae facilitate the anaerobic degradation of glucose by a forest soil

Degelmann, Daniela M., Kolb, Steffen, Dumont, Marc, Murrell, J. Colin and Drake, Harold L. (2009) Enterobacteriaceae facilitate the anaerobic degradation of glucose by a forest soil. FEMS Microbiology Ecology, 68 (3). pp. 312-319. ISSN 1574-6941

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Abstract

Anoxic micro zones that occur in soil aggregates of oxic soils may be temporarily extended after rainfall and thus facilitate the anaerobic degradation of organic compounds in soils. The microbial degradation of glucose by anoxic slurries of a forest soil yielded acetate, CO2, H2, succinate, and ethanol, products indicative of mixed acid fermentation. Prokaryotes involved in this process were identified by time-resolved 16S rRNA gene-targeted stable isotope probing with [13C-U]-glucose. All labeled phylotypes from the 13C-enriched 16S rRNA gene were most closely related to Rahnella and Ewingella, enterobacterial genera known to catalyze mixed acid fermentation. These results indicate that facultative aerobes, in particular Enterobacteriaceae, (1) can outcompete obligate anaerobes when conditions become anoxic in forest soils and (2) may be involved in the initial decomposition of monosaccharides in anoxic micro zones of aerated forest soils.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA
UEA Research Groups:	Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation Faculty of Science > Research Groups > Environmental Biology
Depositing User:	Rhiannon Harvey
Date Deposited:	27 Mar 2012 12:59
Last Modified:	20 Mar 2023 15:31
URI:	https://ueaeprints.uea.ac.uk/id/eprint/38500
DOI:	10.1111/j.1574-6941.2009.00681.x

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