Elevated atmospheric CO2 affects soil microbial diversity associated with trembling aspen

doi:10.1111/j.1462-2920.2007.01512.x

If you are seeing this message, you may be experiencing temporary network problems. Please wait a few minutes and refresh the page. If the problem persists, you may wish to report it to your local Network Manager.

It is also possible that your web browser is not configured or not able to display style sheets. In this case, although the visual presentation will be degraded, the site should continue to be functional. We recommend using the latest version of Microsoft or Mozilla web browser to help minimise these problems.

Wiley InterScience

Environmental Microbiology

See Also:

Environmental Microbiology Reports

Volume 10 Issue 4, Pages 926 - 941

Published Online: 24 Jan 2008

Published jointly with the Society for Applied Microbiology

Go to Society Site

< Previous Abstract | Next Abstract >

Save Article to My Profile Download Citation Request Permissions

Elevated atmospheric CO₂ affects soil microbial diversity associated with trembling aspen

Celine Lesaulnier, ^1,2 Dimitris Papamichail, ^1,3,4 Sean McCorkle, ¹ Bernard Ollivier, ² Steven Skiena, ³ Safiyh Taghavi, ¹ Donald Zak ⁵ and Daniel van der Lelie ¹*

¹ Brookhaven National Laboratory, Biology Department, Building 463, Upton, New York 11973-5000, USA.
² IRD, UMR 180, IFR-BAIM, Université de Provence et de la Méditerranée, ESIL, F-13288, Marseille Cedex 09, France.
³ Computer Science Department, SUNY at Stony Brook, Stony Brook, New York 11794, USA.
⁴ Department of Computer Science, University of Miami, PO Box 248154, Coral Gables, FL 33124-4245, USA.
⁵ School of Natural Resources and Environment, and Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109-1048, USA.

Correspondence to *E-mail vdlelied@bnl.gov; Tel. (+1) 631 344 5349; Fax (+1) 631 344 5751.

ABSTRACT

The effects of elevated atmospheric CO₂ (560 p.p.m.) and subsequent plant responses on the soil microbial community composition associated with trembling aspen was assessed through the classification of 6996 complete ribosomal DNA sequences amplified from the Rhinelander WI free-air CO₂ and O₃ enrichment (FACE) experiments microbial community metagenome. This in-depth comparative analysis provides an unprecedented, detailed and deep branching profile of population changes incurred as a response to this environmental perturbation. Total bacterial and eukaryotic abundance does not change; however, an increase in heterotrophic decomposers and ectomycorrhizal fungi is observed. Nitrate reducers of the domain bacteria and archaea, of the phylum Crenarchaea, potentially implicated in ammonium oxidation, significantly decreased with elevated CO₂. These changes in soil biota are evidence for altered interactions between trembling aspen and the microorganisms in its surrounding soil, and support the theory that greater plant detritus production under elevated CO₂ significantly alters soil microbial community composition.

Received 2 February, 2007; accepted 12 October, 2007.

DIGITAL OBJECT IDENTIFIER (DOI)

10.1111/j.1462-2920.2007.01512.x About DOI