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Applied and Environmental Microbiology, September 2008, p. 5589-5592, Vol. 74, No. 17
0099-2240/08/$08.00+0     doi:10.1128/AEM.00333-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Short-Term Response of Soil Bacteria to Carbon Enrichment in Different Soil Microsites {triangledown}

C. Monard,* F. Binet,* and P. Vandenkoornhuyse

CNRS/Université de Rennes 1, UMR 6553 EcoBio, IFR2116/FR90 CAREN, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France

Received 8 February 2008/ Accepted 5 July 2008

The response of bacteria in bulk soil and earthworm casts to carbon enrichment was studied by an RNA stable-isotope probing/terminal restriction fragment length polymorphism strategy with 13C-labeled glucose and acetate. Both the soil microsite status and the carbon enrichment selected rapidly for different active bacterial communities, which resulted in different degradation kinetics. Our study clearly illustrates the biases that are generated by adding C substrates to detect metabolically active bacteria in soil.

* Corresponding author. Mailing address: CNRS/Université de Rennes 1, UMR 6553 EcoBio, FR2116/FR90 Caren, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France. Phone: (33) (0)223236665. Fax: (33) (0)223236828. E-mail for C. Monard: cecilemonard{at}yahoo.fr. E-mail for F. Binet: francoise.binet{at}univ-rennes1.fr

{triangledown} Published ahead of print on 11 July 2008.

Applied and Environmental Microbiology, September 2008, p. 5589-5592, Vol. 74, No. 17
0099-2240/08/$08.00+0     doi:10.1128/AEM.00333-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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