Organic solids in soil may speed up bacterial breathing

The "mineral-breathing" bacteria found in many oxygen-free environments may be "carbon-breathing" as well. Oxygen-free, or anaerobic, environments contain microbes sometimes described as "mineral-breathing" because they use iron oxides and other minerals in the same way we use oxygen. According to a new study, this bacterial respiration may be accelerated by solid organic compounds in the soil.

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