Abstract
The evolution of non-photosynthetic sulphide-oxidizing bacteria was contemporaneous with a large shift in the isotopic composition of biogenic sedimentary sulphides between 0.64 and 1.05 billion years ago. Both events were probably driven by a rise in atmospheric oxygen concentrations to greater than 5-18% of present levels--a change that may also have triggered the evolution of animals.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Animals
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Atmosphere / chemistry*
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Bacteria / classification
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Bacteria / metabolism*
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Biological Evolution*
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Earth, Planet
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Evolution, Planetary*
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Geologic Sediments / chemistry
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Geologic Sediments / microbiology
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Marine Biology
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Mollusca
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Oxygen / analysis*
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Paleontology
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RNA, Bacterial
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RNA, Ribosomal, 16S
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Sulfur / metabolism*
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Symbiosis
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Water Microbiology
Substances
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RNA, Bacterial
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RNA, Ribosomal, 16S
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Sulfur
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Oxygen