Tectonically-driven oxidant production in the hot biosphere

Jordan Stone, John O. Edgar, Jamie A. Gould and Jon Telling ()
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Jordan Stone: Newcastle University
John O. Edgar: Newcastle University
Jamie A. Gould: Newcastle University
Jon Telling: Newcastle University

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Genomic reconstructions of the common ancestor to all life have identified genes involved in H2O2 and O2 cycling. Commonly dismissed as an artefact of lateral gene transfer after oxygenic photosynthesis evolved, an alternative is a geological source of H2O2 and O2 on the early Earth. Here, we show that under oxygen-free conditions high concentrations of H2O2 can be released from defects on crushed silicate rocks when water is added and heated to temperatures close to boiling point, but little is released at temperatures

Date: 2022
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DOI: 10.1038/s41467-022-32129-y

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