title: The utility of Shewanella japonica for microbial fuel cells.
abstract: Shewanella-containing microbial fuel cells (MFCs) typically use the fresh water wild-type strain Shewanella oneidensis MR-1 due to its metabolic diversity and facultative oxidant tolerance. However, S. oneidensis MR-1 is not capable of metabolizing polysaccharides for extracellular electron transfer. The applicability of Shewanella japonica (an agar-lytic Shewanella strain) for power applications was analyzed using a diverse array of carbon sources for current generation from MFCs, cellular physiological responses at an electrode surface, biofilm formation, and the presence of soluble extracellular mediators for electron transfer to carbon electrodes. Critically, air-exposed S. japonica utilizes biosynthesized extracellular mediators for electron transfer to carbon electrodes with sucrose as the sole carbon source.
authors.affiliation: Chemistry Division, US Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, DC 20375, USA. justin.biffinger@nrl.navy.mil
authors.forename: Justin C
authors.initials: JC
authors.lastname: Biffinger
authors.forename: Lisa A
authors.initials: LA
authors.lastname: Fitzgerald
authors.forename: Ricky
authors.initials: R
authors.lastname: Ray
authors.forename: Brenda J
authors.initials: BJ
authors.lastname: Little
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Lizewski
authors.forename: Emily R
authors.initials: ER
authors.lastname: Petersen
authors.forename: Bradley R
authors.initials: BR
authors.lastname: Ringeisen
authors.forename: Wesley C
authors.initials: WC
authors.lastname: Sanders
authors.forename: Paul E
authors.initials: PE
authors.lastname: Sheehan
authors.forename: Jeremy J
authors.initials: JJ
authors.lastname: Pietron
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Baldwin
authors.forename: Lloyd J
authors.initials: LJ
authors.lastname: Nadeau
authors.forename: Glenn R
authors.initials: GR
authors.lastname: Johnson
authors.forename: Meghann
authors.initials: M
authors.lastname: Ribbens
authors.forename: Steven E
authors.initials: SE
authors.lastname: Finkel
authors.forename: Kenneth H
authors.initials: KH
authors.lastname: Nealson
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D018441:Biofilms / Q000254:growth & development; D002244:Carbon / Q000378:metabolism; D004560:Electricity; D004566:Electrodes / Q000382:microbiology; D004579:Electron Transport; D005110:Extracellular Space / Q000378:metabolism; D005618:Fresh Water / Q000382:microbiology; D010084:Oxidation-Reduction; D020592:Shewanella / Q000378:metabolism / Q000502:physiology*; D012995:Solubility
chemical_list: D002244:Carbon