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Microbial characterization of anode-respiring bacteria within biofilms developed from cultures previously enriched in dissimilatory metal-reducing bacteria

Abstract : This work evaluated the use of a culture enriched in DMRB as a strategy to enrich ARB on anodes. DMRB were enriched with Fe(III) as final electron acceptor and then transferred to a potentiostatically-controlled system with an anode as sole final electron acceptor. Three successive iron-enrichment cultures were carried out. The first step of enrichment revealed a successful selection of the high current-producing ARB Geoalkalibacter subterraneus. After few successive enrichment steps, the microbial community analysis in electroactive biofilms showed a significant divergence with an impact on the biofilm electroactivity. Enrichment of ARB in electroactive biofilms through the pre-selection of DMRB should therefore be carefully considered.
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https://hal.inrae.fr/hal-02631087
Déposant : Migration Prodinra <>
Soumis le : mercredi 27 mai 2020 - 07:12:26
Dernière modification le : mardi 8 décembre 2020 - 10:32:56

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Mélanie Pierra, Alessandro Carmona Martinez, Eric Trably, Jean-Jacques Godon, Nicolas Bernet. Microbial characterization of anode-respiring bacteria within biofilms developed from cultures previously enriched in dissimilatory metal-reducing bacteria. Bioresource Technology, Elsevier, 2015, 195, pp.283-287. ⟨10.1016/j.biortech.2015.07.010⟩. ⟨hal-02631087⟩

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