6533b85efe1ef96bd12bff27

RESEARCH PRODUCT

Contamination of soil by copper affects the dynamics, diversity, and activity of soil bacterial communities involved in wheat decomposition and carbon storage.

Jérôme BalesdentVirginie NowakLionel RanjardFrédéric GibiatChristine MarolJean LévêqueLaetitia BernardChristophe MougelPierre-alain Maron

subject

Soil biology[SDE.MCG]Environmental Sciences/Global Changes[ SDV.SA.SDS ] Life Sciences [q-bio]/Agricultural sciences/Soil study010501 environmental sciences[ SDV.MP.BAC ] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study01 natural sciencesApplied Microbiology and BiotechnologyTOXICITYIsotopesEnvironmental Microbiology[ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces environmentSoil PollutantsMICROBIAL COMMUNITIESAGRICULTURAL SOILS[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environmentSoil MicrobiologyTriticum0105 earth and related environmental sciencesEcologyBacteriaChemistrySoil organic matterSoil classification04 agricultural and veterinary sciencesMineralization (soil science)Biodiversity15. Life on landCarbon DioxideSoil contamination[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/BacteriologyCarbon[ SDE.MCG ] Environmental Sciences/Global ChangesAgronomy13. Climate actionSoil water040103 agronomy & agriculture0401 agriculture forestry and fisheriesMicrocosmSoil microbiologyCopperFood ScienceBiotechnology

description

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.

10.1128/aem.00616-09https://hal.archives-ouvertes.fr/hal-00434100