Microbial Interactions in Electroactive Biofilms for Environmental Engineering Applications: A Role for Nonexoelectrogens

Mathias Fessler, Jonas Stenløkke Madsen, Yifeng Zhang*

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

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Abstract

Microbial electrochemical systems have gained much attention over the past decade due to their potential for various environmental engineering applications ranging from energy production to wastewater treatment to bioproduction. At the heart of these systems lie exoelectrogens–microorganisms capable of exporting electrons generated during metabolism to external electron acceptors such as electrodes. The bacterial biofilm communities on these electrodes are dominated by exoelectrogens but are nonetheless extremely diverse. So far, within the field, the main focus has been on the electroactive bacteria. However, to broaden our understanding of these communities, it is crucial to clarify how the remaining inhabitants of electrode-respiring biofilms contribute to the overall function of the biofilm. Ultimately, such insights may enable improvement of microbial electrochemical systems by reshaping the community structure with naturally occurring beneficial strains.
Original languageEnglish
JournalEnvironmental Science & Technology
Volume56
Issue number22
Pages (from-to)15273-15279
Number of pages7
ISSN0013-936X
DOIs
Publication statusPublished - 2022

Keywords

  • Microbial electrochemical systems
  • Electroactive bacteria
  • Biofilms
  • Microbial interactions

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