Abstract
Deleting individual genes for outer surface c-type cytochromes in Geobacter sulfurreducens partially inhibited the reduction of humic substances and anthraquinone-2,6,-disulfonate. Complete inhibition was obtained only when five of these genes were simultaneously deleted, suggesting that diverse outer surface cytochromes can contribute to the reduction of humic substances and other extracellular quinones.
MeSH terms
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Anthraquinones / metabolism*
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Bacterial Proteins / genetics
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Bacterial Proteins / metabolism
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Cytochromes / genetics
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Cytochromes / metabolism*
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Gene Deletion
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Genes, Bacterial
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Geobacter / genetics
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Geobacter / metabolism*
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Humic Substances*
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Oxidation-Reduction
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Soil / analysis*
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Soil Microbiology*
Substances
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Anthraquinones
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Bacterial Proteins
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Cytochromes
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Humic Substances
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Soil
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anthraquinone-2,6-disulfonate