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Applied and Environmental Microbiology, February 2006, p. 1684-1687, Vol. 72, No. 2
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.2.1684-1687.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Cumulative Effects of Short-Term Polymetal Contamination on Soil Bacterial Community Structure

L. Ranjard,* L. Lignier, and R. Chaussod

INRA-Université de Bourgogne, UMR Microbiologie et Géochimie des Sols, CMSE, 17 rue Sully, B.V. 86510, 21065 Dijon Cedex, France

Received 22 August 2005/ Accepted 14 November 2005

In this study we evaluated the short-term effects of copper, cadmium, and mercury, added singly or in combination at different doses, on soil bacterial community structure using the bacterial automated ribosomal intergenic spacer analysis (B-ARISA) fingerprinting technique. Principal-component analysis of B-ARISA profiles allowed us to deduce the following order of impact: (Cu + Cd + Hg) >> Hg ≥ Cd > Cu. These results demonstrated that there was a cumulative effect of metal toxicity. Furthermore, the trend of modifications was consistent with the "hump-backed" relationships between biological diversity and disturbance described by Giller et al. (K. E. Giller, E. Witler, and S. P. McGrath, Soil Biol. Biochem. 30:1389-1414, 1998).

* Corresponding author. Mailing address: UMR Microbiologie et Géochimie des Sols, INRA/Université de Bourgogne, CMSE, 17 rue de Sully, BP 86510, 21065 Dijon Cedex, France. Phone: 33 (0) 3 80 69 30 88. Fax: 33 (0) 3 80 69 32 24. E-mail: lionel.ranjard{at}dijon.inra.fr.

Applied and Environmental Microbiology, February 2006, p. 1684-1687, Vol. 72, No. 2
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.2.1684-1687.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Bernard, L., Maron, P. A., Mougel, C., Nowak, V., Leveque, J., Marol, C., Balesdent, J., Gibiat, F., Ranjard, L. (2009). Contamination of Soil by Copper Affects the Dynamics, Diversity, and Activity of Soil Bacterial Communities Involved in Wheat Decomposition and Carbon Storage. Appl. Environ. Microbiol. 75: 7565-7569 [Abstract] [Full Text]  


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