Bioresource Technology 214 (2016) 55–62 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Biocathodes reducing oxygen at high potential select bioﬁlms dominated by Ectothiorhodospiraceae populations harboring a speciﬁc association of genes a b a a b Elie Desmond-Le Quéméner , Mickaël Rimboud , Arnaud Bridier , Céline Madigou , Benjamin Erable , b a,⇑ Alain Bergel , Théodore Bouchez Irstea, UR HBAN, 1 rue Pierre-Gilles de Gennes, 92761 Antony cedex, France Laboratoire de Génie Chimique (LGC), CNRS, Université de Toulouse (INPT), 4 allée Emile Monso, BP 84234, 31432 Toulouse, France highl i ghts graphical a bstrac t 10 biocathodes were formed at +0.1 V and 0.4 V vs. SCE. 4 biocathodes active at +0.1 V vs. SCE have been obtained. Most efﬁcient cathodic bioﬁlms are dominated by Ectothiorodospiraceae. The most efﬁcient bioﬁlm was characterized by shotgun metagenomics. Candidate genes implicated in electron transfer and autotrophic growth are outlined. article i nfo abstract Article history: Biocathodes polarized at high potential are promising for enhancing Microbial Fuel Cell performances but Received 11 March 2016 the microbes and genes involved remain poorly documented. Here, two sets of ﬁve oxygen-reducing bio- Received in revised form 15 April 2016 cathodes were formed
Bioresource Technology – Elsevier
Published: Aug 1, 2016
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