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This study investigates the metabolic response of Geobacter sulfurreducens to varying electron donors and acceptors in a microbial electrolysis cell (MEC) setup, revealing insights into the bacterium's ability to adapt to different redox conditions.

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Abstract

Key findings

  • G. sulfurreducens exhibits increased metabolic activity when exposed to a range of electron donors, including formate and acetate.
  • The bacterium's ability to reduce oxygen is significantly impaired when using fumarate as the electron acceptor.
  • The study's findings suggest that G. sulfurreducens can thrive in MEC environments with optimal electron donor/acceptor ratios.

Keywords

Geobacter sulfurreducensCitric acid cycleElectron acceptorTricarboxylic acidElectron donorPhosphoenolpyruvate carboxykinase

Identifiers

DOI
10.1186/1475-2859-9-90
Journal
Microbial Cell Factories
Year
2009