Biomineralization of gold: Biofilms on bacterioform gold
Biomineralization of gold: Biofilms on bacterioform gold
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DOI：
10.1126/science.1125878
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发表时间：
2006-07-14
期刊：
影响因子：
56.9
通讯作者：
Webb, Daryl
中科院分区：
文献类型：
--
作者：
Reith, Frank;Rogers, Stephen L.;Webb, Daryl
细菌生物膜与澳大利亚两个地点的次生金粒有关。所有DNA阳性的金粒中都有Ralstonia属的16S核糖体DNA克隆，它们与细菌Ralstonia metalliduans有99%的相似性-显示从四氯化金(III)水溶液中沉淀金-但在周围的土壤中没有检测到。这些结果为细菌对次生细菌状金粒和金块的自生形成提供了证据。
Bacterial biofilms are associated with secondary gold grains from two sites in Australia. 16S 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.