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Contamination of soil by copper affects the dynamics, diversity, and activity of soil bacterial communities involved
L Bernard1, P A Maron, C Mougel
1Laboratoire de Microbiologie et Géochimie des Sols, INRA/CMSE, Dijon Cedex, France.
Abstract:
A soil microcosm experiment was conducted to evaluate the influence of copper contamination on the dynamics and diversity of bacterial communities actively involved in wheat residue decomposition. In the presence of copper, a higher level of CO(2) release was observed, which did not arise from greater wheat decomposition but from a higher level of stimulation of soil organic matter mineralization (known as the priming effect). Such functional modifications may be related to significant modifications in the diversity of active bacterial populations characterized using the DNA stable-isotope probing approach.
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