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- Title
Molecular mechanisms regulating the catabolic and electrochemical activities of Shewanella oneidensis MR-1.
- Authors
Kouzuma, Atsushi
- Abstract
Electrochemically active bacteria (EAB) interact electrochemically with electrodes via extracellular electron transfer (EET) pathways. These bacteria have attracted significant attention due to their utility in environmental-friendly bioelectrochemical systems (BESs), including microbial fuel cells and electrofermentation systems. The electrochemical activity of EAB is dependent on their carbon catabolism and respiration; thus, understanding how these processes are regulated will provide insights into the development of a more efficient BES. The process of biofilm formation by EAB on BES electrodes is also important for electric current generation because it facilitates physical and electrochemical interactions between EAB cells and electrodes. This article summarizes the current knowledge on EET-related metabolic and cellular functions of a model EAB, Shewanella oneidensis MR-1, focusing specifically on regulatory systems for carbon catabolism, EET pathways, and biofilm formation. Based on recent developments, the author also discusses potential uses of engineered S. oneidensis strains for various biotechnological applications.
- Subjects
SHEWANELLA oneidensis; RESPIRATION; CHARGE exchange; ELECTRIC currents; CELL physiology; MICROBIAL fuel cells
- Publication
Bioscience, Biotechnology & Biochemistry, 2021, Vol 85, Issue 7, p1572
- ISSN
0916-8451
- Publication type
Article
- DOI
10.1093/bbb/zbab088