Understanding and engineering electrochemically active bacteria for sustainable biotechnology

Abstract Electrochemically active bacteria (EAB) receive considerable attention in sustainable biotechnology, since they are essential components in microbial fuel cells (MFCs) that are able to generate electricity from biomass wastes. EAB are also expected to be applied to the production of valued...

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Main Authors: Atsumi Hirose, Takuya Kasai, Ryota Koga, Yusuke Suzuki, Atsushi Kouzuma, Kazuya Watanabe
Format: Article
Language:English
Published: SpringerOpen 2019-03-01
Series:Bioresources and Bioprocessing
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40643-019-0245-9
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author Atsumi Hirose
Takuya Kasai
Ryota Koga
Yusuke Suzuki
Atsushi Kouzuma
Kazuya Watanabe
author_facet Atsumi Hirose
Takuya Kasai
Ryota Koga
Yusuke Suzuki
Atsushi Kouzuma
Kazuya Watanabe
author_sort Atsumi Hirose
collection DOAJ
description Abstract Electrochemically active bacteria (EAB) receive considerable attention in sustainable biotechnology, since they are essential components in microbial fuel cells (MFCs) that are able to generate electricity from biomass wastes. EAB are also expected to be applied to the production of valued chemicals in microbial electrosynthesis systems (MESs) with the supply of electric energy from electrodes. It is, therefore, important to deepen our understanding of EAB in terms of their physiology, genetics and genomics. Knowledge obtained in these studies will facilitate the engineering of EAB for developing more efficient biotechnology processes. In this article, we summarize current knowledge on Shewanella oneidensis MR-1, a representative EAB extensively studied in the laboratory. Studies have shown that catabolic activities of S. oneidensis MR-1 are well tuned for efficiently conserving energy under varied growth conditions, e.g., different electrode potentials, which would, however, in some cases, hamper its application to biotechnology processes. We suggest that understanding of molecular mechanisms underlying environmental sensing and catabolic regulation in EAB facilitates their biotechnological applications.
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spelling doaj.art-e8d6d8046bbf42ab9875fa1ffc134d122022-12-22T00:54:27ZengSpringerOpenBioresources and Bioprocessing2197-43652019-03-016111510.1186/s40643-019-0245-9Understanding and engineering electrochemically active bacteria for sustainable biotechnologyAtsumi Hirose0Takuya Kasai1Ryota Koga2Yusuke Suzuki3Atsushi Kouzuma4Kazuya Watanabe5School of Life Sciences, Tokyo University of Pharmacy and Life SciencesSchool of Life Sciences, Tokyo University of Pharmacy and Life SciencesSchool of Life Sciences, Tokyo University of Pharmacy and Life SciencesSchool of Life Sciences, Tokyo University of Pharmacy and Life SciencesSchool of Life Sciences, Tokyo University of Pharmacy and Life SciencesSchool of Life Sciences, Tokyo University of Pharmacy and Life SciencesAbstract Electrochemically active bacteria (EAB) receive considerable attention in sustainable biotechnology, since they are essential components in microbial fuel cells (MFCs) that are able to generate electricity from biomass wastes. EAB are also expected to be applied to the production of valued chemicals in microbial electrosynthesis systems (MESs) with the supply of electric energy from electrodes. It is, therefore, important to deepen our understanding of EAB in terms of their physiology, genetics and genomics. Knowledge obtained in these studies will facilitate the engineering of EAB for developing more efficient biotechnology processes. In this article, we summarize current knowledge on Shewanella oneidensis MR-1, a representative EAB extensively studied in the laboratory. Studies have shown that catabolic activities of S. oneidensis MR-1 are well tuned for efficiently conserving energy under varied growth conditions, e.g., different electrode potentials, which would, however, in some cases, hamper its application to biotechnology processes. We suggest that understanding of molecular mechanisms underlying environmental sensing and catabolic regulation in EAB facilitates their biotechnological applications.http://link.springer.com/article/10.1186/s40643-019-0245-9Electrochemically active bacteriaExoelectrogenElectrotrophElectric syntrophyMicrobial fuel cellsMicrobial electrolysis cells
spellingShingle Atsumi Hirose
Takuya Kasai
Ryota Koga
Yusuke Suzuki
Atsushi Kouzuma
Kazuya Watanabe
Understanding and engineering electrochemically active bacteria for sustainable biotechnology
Bioresources and Bioprocessing
Electrochemically active bacteria
Exoelectrogen
Electrotroph
Electric syntrophy
Microbial fuel cells
Microbial electrolysis cells
title Understanding and engineering electrochemically active bacteria for sustainable biotechnology
title_full Understanding and engineering electrochemically active bacteria for sustainable biotechnology
title_fullStr Understanding and engineering electrochemically active bacteria for sustainable biotechnology
title_full_unstemmed Understanding and engineering electrochemically active bacteria for sustainable biotechnology
title_short Understanding and engineering electrochemically active bacteria for sustainable biotechnology
title_sort understanding and engineering electrochemically active bacteria for sustainable biotechnology
topic Electrochemically active bacteria
Exoelectrogen
Electrotroph
Electric syntrophy
Microbial fuel cells
Microbial electrolysis cells
url http://link.springer.com/article/10.1186/s40643-019-0245-9
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AT yusukesuzuki understandingandengineeringelectrochemicallyactivebacteriaforsustainablebiotechnology
AT atsushikouzuma understandingandengineeringelectrochemicallyactivebacteriaforsustainablebiotechnology
AT kazuyawatanabe understandingandengineeringelectrochemicallyactivebacteriaforsustainablebiotechnology