TY - JOUR PY - 2003// TI - The ecology of arsenic JO - Science A1 - Oremland, Ronald S. A1 - Stolz, John F. SP - 939 EP - 944 VL - 300 IS - 5621 N2 - Arsenic is a metalloid whose name conjures up images of murder. Nonetheless, certain prokaryotes use arsenic oxyanions for energy generation, either by oxidizing arsenite or by respiring arsenate. These microbes are phylogenetically diverse and occur in a wide range of habitats. Arsenic cycling may take place in the absence of oxygen and can contribute to organic matter oxidation. In aquifers, these microbial reactions may mobilize arsenic from the solid to the aqueous phase, resulting in contaminated drinking water. Here we review what is known about arsenicmetabolizing bacteria and their potential impact on speciation and mobilization of arsenic in nature.
LA - SN - 0036-8075 UR - http://dx.doi.org/10.1126/science.1081903 ID - ref1 ER -