Redox reactions in widely spatially separated layers of marine sediments are coupled to each other. This suggests that bacteria mediate the flow of electrons between the layers — an idea that would previously have been dismissed.
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Nealson, K. Sediment reactions defy dogma. Nature 463, 1033–1034 (2010). https://doi.org/10.1038/4631033a
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DOI: https://doi.org/10.1038/4631033a
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