Influence of inoculum and anode surface properties on the selection of Geobacter-dominated biofilms

Commault, AS; Barrière, F; Lapinsonnière, L; Lear, G; Bouvier, S; Weld, RJ

Influence of inoculum and anode surface properties on the selection of Geobacter-dominated biofilms

Commault, AS

Barrière, F Lapinsonnière, L Lear, G Bouvier, S Weld, RJ

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2015, 195 pp. 265 - 272
Issue Date:: 2015-08-15

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Field	Value	Language
dc.contributor.author	Commault, AS https://orcid.org/0000-0002-6730-0089	en_US
dc.contributor.author	Barrière, F	en_US
dc.contributor.author	Lapinsonnière, L	en_US
dc.contributor.author	Lear, G	en_US
dc.contributor.author	Bouvier, S	en_US
dc.contributor.author	Weld, RJ	en_US
dc.date.available	2015-06-29	en_US
dc.date.issued	2015-08-15	en_US
dc.identifier.citation	Bioresource Technology, 2015, 195 pp. 265 - 272	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117279
dc.description.abstract	© 2015 Elsevier Ltd. All rights reserved. This study evaluated the impact of inoculum source and anode surface modification (carboxylate -COO- and sulfonamide -SO2NH2 groups) on the microbial composition of anode-respiring biofilms. These two factors have not previously been considered in detail. Three different inoculum sources were investigated, a dry aerobic soil, brackish estuarine mud and freshwater sediment. The biofilms were selected using a poised anode (-0.36 V vs Ag/AgCl) and acetate as the electron donor in a three-electrode configuration microbial fuel cell (MFC). Population profiling and cloning showed that all biofilms selected were dominated by Geobacter sp., although their electrochemical properties varied depending on the source inoculum and electrode surface modification. These findings suggest that Geobacter sp. are widespread in soils, even those that do not provide a continuously anaerobic environment, and are better at growing in the MFC conditions than other bacteria.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2015.06.141	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Biofilms	en_US
dc.subject.mesh	Geobacter	en_US
dc.subject.mesh	Electrodes	en_US
dc.subject.mesh	Bioelectric Energy Sources	en_US
dc.subject.mesh	Electricity	en_US
dc.subject.mesh	Surface Properties	en_US
dc.title	Influence of inoculum and anode surface properties on the selection of Geobacter-dominated biofilms	en_US
dc.type	Journal Article
utslib.citation.volume	195	en_US
utslib.for	0601 Biochemistry and Cell Biology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - C3 - Climate Change Cluster
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	195	en_US

Abstract:

© 2015 Elsevier Ltd. All rights reserved. This study evaluated the impact of inoculum source and anode surface modification (carboxylate -COO- and sulfonamide -SO2NH2 groups) on the microbial composition of anode-respiring biofilms. These two factors have not previously been considered in detail. Three different inoculum sources were investigated, a dry aerobic soil, brackish estuarine mud and freshwater sediment. The biofilms were selected using a poised anode (-0.36 V vs Ag/AgCl) and acetate as the electron donor in a three-electrode configuration microbial fuel cell (MFC). Population profiling and cloning showed that all biofilms selected were dominated by Geobacter sp., although their electrochemical properties varied depending on the source inoculum and electrode surface modification. These findings suggest that Geobacter sp. are widespread in soils, even those that do not provide a continuously anaerobic environment, and are better at growing in the MFC conditions than other bacteria.

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http://hdl.handle.net/10453/117279