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University of Southern Denmark

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Caption

Scanning electron microscope image showing syntrophic acetate-oxidizing (SAO) bacteria (blue rods) and methanogenic archaea (red cocci) interacting on conductive particles. The bacteria oxidize acetate to CO₂, releasing electrons (e⁻) that travel via the particles to the archaea, which reduce CO₂ to methane (CH₄). Image collected by D. Jovicic and J. Fiutowski; schematic created in BioRender (Rotaru, A., 2026). https://BioRender.com/1z598ch

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Rotaru/SDU

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