title: The dynamics of soil bacterial community structure in response to yearly repeated agricultural copper treatments.
abstract: The annual dynamics of soil bacterial community structure, including early, dose-dependent and transient modifications, was observed consecutively at different levels of copper contamination (high: 48 kg Cu ha(-1), low: 16 kg Cu ha(-1)) repeated yearly over a three-year field experiment. Repeated low-level Cu contamination led to an increase in community stability to metal stress without a long-term shift in the population structure, whereas repeated high-level Cu contamination induced a novel and stable bacterial community structure. Furthermore, field experimentation highlighted that episodic climatic stress can modulate copper impact by enhancing community stability.
authors.affiliation: INRA-Université de Bourgogne, UMR Microbiologie du Sol et de l'Environnement, CMSE, 17 rue Sully, Dijon Cedex, France. lionel.ranjard@dijon.inra.fr
authors.forename: Lionel
authors.initials: L
authors.lastname: Ranjard
authors.forename: Virginie
authors.initials: V
authors.lastname: Nowak
authors.forename: Abdelwahad
authors.initials: A
authors.lastname: Echairi
authors.forename: Vincent
authors.initials: V
authors.lastname: Faloya
authors.forename: Rémi
authors.initials: R
authors.lastname: Chaussod
mesh_terms: D001419:Bacteria / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D003300:Copper / Q000494:pharmacology*; D017753:Ecosystem; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000494:pharmacology
chemical_list: D012987:Soil; D012989:Soil Pollutants; D003300:Copper