Biomineralization of gold: Biofilms on bacterioform gold

Frank Reith*, Stephen L. Rogers, D. C. McPhail, Daryl Webb

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    187 Citations (Scopus)

    Abstract

    Bacterial biofilms are associated with secondary gold grains from two sites in Australia. 165 ribosomal DNA clones of the genus Ralstonia that bear 99% similarity to the bacterium Ralstonia metallidurans-shown to precipitate gold from aqueous gold(III) tetrachloride-were present on all DNA-positive gold grains but were not detected in the surrounding soils. These results provide evidence for the bacterial contribution to the authigenic formation of secondary bacterioform gold grains and nuggets.

    Original languageEnglish
    Pages (from-to)233-236
    Number of pages4
    JournalScience
    Volume313
    Issue number5784
    DOIs
    Publication statusPublished - 14 Jul 2006

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