Biotechnological Aspects of Microbial Extracellular Electron Transfer

Extracellular electron transfer (EET) is a type of microbial respiration that enables electron transfer between microbial cells and extracellular solid materials, including naturally-occurring metal compounds and artificial electrodes. Microorganisms harboring EET abilities have received considerabl...

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Bibliographic Details
Published inMicrobes and Environments Vol. 30; no. 2; pp. 133 - 139
Main Author Kato, Souichiro
Format Journal Article
LanguageEnglish
Published Japan Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles 2015
Japan Science and Technology Agency
the Japanese Society of Microbial Ecology (JSME)/the Japanese Society of Soil Microbiology (JSSM)/the Taiwan Society of Microbial Ecology (TSME)/the Japanese Society of Plant Microbe Interactions (JSPMI)
Subjects
Bacteria - metabolism
biocorrosion
Biodegradation, Environmental
Bioelectric Energy Sources
Bioremediation
Biotechnology
Biotechnology - methods
Corrosion
electric syntrophy
Electrochemistry
Electron Transport
Environmental Microbiology
extracellular electron transfer
microbial electrochemical cells
Microorganisms
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ISSN1342-6311
1347-4405
DOI10.1264/jsme2.ME15028

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Summary:Extracellular electron transfer (EET) is a type of microbial respiration that enables electron transfer between microbial cells and extracellular solid materials, including naturally-occurring metal compounds and artificial electrodes. Microorganisms harboring EET abilities have received considerable attention for their various biotechnological applications, in addition to their contribution to global energy and material cycles. In this review, current knowledge on microbial EET and its application to diverse biotechnologies, including the bioremediation of toxic metals, recovery of useful metals, biocorrosion, and microbial electrochemical systems (microbial fuel cells and microbial electrosynthesis), were introduced. Two potential biotechnologies based on microbial EET, namely the electrochemical control of microbial metabolism and electrochemical stimulation of microbial symbiotic reactions (electric syntrophy), were also discussed.
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ISSN:1342-6311
1347-4405
DOI:10.1264/jsme2.ME15028