title: All ecosystems potentially host electrogenic bacteria.
abstract: Instead of requiring metal catalysts, MFCs utilize bacteria that oxidize organic matter and either transfer electrons to the anode or take electrons from the cathode. These devices are thus based on a wide microbial diversity that can convert a large array of organic matter components into sustainable and renewable energy. A wide variety of explored environments were found to host electrogenic bacteria, including extreme environments. In the present review, we describe how different ecosystems host electrogenic bacteria, as well as the physicochemical, electrochemical and biological parameters that control the currents from MFCs. We also report how using new molecular techniques allowed characterization of electrochemical biofilms and identification of potentially new electrogenic species. Finally we discuss these findings in the context of future research directions.
authors: CEA, DSV, IBEB, Lab of Microbial Ecology of the Rhizosphere & Extreme Environment (LEMiRE), 13108 Saint Paul-Lez-Durance, France; CNRS, BVME UMR 7265, ECCOREV FR 3098, 13108 Saint Paul-Lez-Durance, France; Aix Marseille Université, 13284 Marseille Cedex 07, France.
authors: Nicolas
authors: N
authors: Chabert
authors: CEA, DSV, IBEB, Lab of Microbial Ecology of the Rhizosphere & Extreme Environment (LEMiRE), 13108 Saint Paul-Lez-Durance, France; CNRS, BVME UMR 7265, ECCOREV FR 3098, 13108 Saint Paul-Lez-Durance, France; Aix Marseille Université, 13284 Marseille Cedex 07, France.
authors: Oulfat
authors: O
authors: Amin Ali
authors: CEA, DSV, IBEB, Lab of Microbial Ecology of the Rhizosphere & Extreme Environment (LEMiRE), 13108 Saint Paul-Lez-Durance, France; CNRS, BVME UMR 7265, ECCOREV FR 3098, 13108 Saint Paul-Lez-Durance, France; Aix Marseille Université, 13284 Marseille Cedex 07, France. Electronic address: wafa.achouak@cea.fr.
authors: Wafa
authors: W
authors: Achouak
mesh_terms: D001419:Bacteria / Q000737:chemistry / Q000166:cytology / Q000378:metabolism*; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D017753:Ecosystem; D004563:Electrochemistry; D004579:Electron Transport; D005110:Extracellular Space / Q000737:chemistry
keywords: Biofilm composition; Exocellular electron transfer; Imagery; Inocula source; Microbial fuel cells; Molecular tools