Establishing a core microbiome in acetate-fed microbial fuel cells

Establishing a core microbiome is the first step in understanding and subsequently optimizing microbial interactions in anodic biofilms of microbial fuel cells (MFCs) for increased power, efficiency, and decreased start-up times. In the present study, we used 454 pyrosequencing to demonstrate that a...

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Bibliographic Details
Published in:Applied microbiology and biotechnology 2014-05, Vol.98 (9), p.4187-4196
Main Authors: Lesnik, Keaton Larson, Liu, Hong
Format: Article
Language:English
Subjects:
Accounting
Acetates - metabolism
Analysis
Anodic
Bacteria
Bacteria - classification
Biochemical fuel cells
Bioelectric Energy Sources - microbiology
biofilm
Biofilms
Biomedical and Life Sciences
Biotechnology
Carbon
Communities
DNA, Bacterial - chemistry
DNA, Bacterial - genetics
Ecological monitoring
Ecological studies
Effluents
Electrodes
Electrodes - microbiology
Environmental Biotechnology
Fuel cells
Fuel technology
Geobacter
Life Sciences
microbial fuel cells
Microbial Genetics and Genomics
Microbial mats
Microbiology
Microbiota
Microorganisms
Molecular Sequence Data
phylogeny
Reactors
sequence analysis
Sequence Analysis, DNA
Spirochaeta
Studies
Water treatment
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Summary:Establishing a core microbiome is the first step in understanding and subsequently optimizing microbial interactions in anodic biofilms of microbial fuel cells (MFCs) for increased power, efficiency, and decreased start-up times. In the present study, we used 454 pyrosequencing to demonstrate that a core anodic community would consistently emerge over a period of 4 years given similar conditions. The development and variation across reactor designs of these communities was also explored. The core members present in all high-power generating biofilms were Geobacter, Aminiphilus, Sedimentibacter, Acetoanaerobium, and Spirochaeta, accounting for 72 ± 9 % of all genera. Aminiphilus spp., member of the Synergistetes phylum was present at higher abundances than previously reported in any other ecological studies. Results suggest a stable core microbiome in acetate-fed MFCs on both phylogenetic and functional levels.
ISSN:0175-7598
1432-0614
DOI:10.1007/s00253-013-5502-9