Arsenite-oxidizing bacteria isolation

The discovery of six new chemolithoautotrophic arsenite-oxidizing bacteria isolated from gold mines in different regions of Australia demonstrates that energy... 

JM Santini, LI Sly, A Wen, P Durand, D Comrie, JM Macy. New arsenite-oxidizing bacteria isolated from Australian gold-mining enviromnents Phylogenetic relationship. Geomicrobiology J, in press. 

This chapter concentrates on arsenite oxidation by NT-26 as well as a number of other recently isolated arsenite-oxidizing bacteria. It will be apparent that all but one of these organisms is phylogenetically distinct from the arsenite oxidizers previously identified. The isolation, phytogeny, physiology, and biochemistry of arsenite oxidation are described. 

For the isolation of arsenite-oxidizing bacteria, samples were taken from two different gold mine sites in Australia (13). Moist samples of arsenopyrite (FeAsS)... 

Table 1 Comparisons of Chemolithoautotrophic Arsenite-Oxidizing Ability of Newly Isolated Arsenite-Oxidizing Bacteria with A. faecalis HLE...

In addition to plasmid arsenic resistance that is well understood and for which clusters of genes have been isolated and sequenced, there are bacterial arsenic metabolism systems that involve oxidation of arsenite to arsenic. Arsenite oxidation by aerobic pseudomonads was first found with bacteria isolated from cattle dipping solutions where arsenicals were used as agents against ticks around the time of World War I. They were subsequently isolated by Turner and Legge... 

AW Turner, JW Legge. Bacterial oxidation of arsenite. II. Description of bacteria isolated from cattle-dipping fluids. Aust J Biol Sci 7 452-478, 1954. 

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