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CHARACTERIZATION OF PB2+ UPTAKE AND SEQUESTRATION IN PSEUDOMONAS AERUGINOSA, CHL004, LEAD
Citation:
Slomczynski, D. J. AND W J. DavisHoover*. CHARACTERIZATION OF PB2+ UPTAKE AND SEQUESTRATION IN PSEUDOMONAS AERUGINOSA, CHL004, LEAD. Presented at Third International Conference, Monterey, CA, 5/20-23/2002.
Description:
In laboratory studies, the soil isolate Pseudomonas aeruginosa CHL004 has been found to concentrate Pb2+ in the cytoplasm by formation of particles that contain Pb2+ and phosphorus. Upon examination of many particles using x-ray diffraction, we have found that the product formed is pyromorphite. This suggest there must be a mechanism by which lead is actively transported into the cell. The specific aims of our current research are to understand the mechanism of lead transport and to optimize conditions for uptake in CHL004. The long-term goal of this project is to utilize this bacterium in a field study to detemine the plausibility of utilizing Pb2+ uptake and sequestration to remove Pb2+ -contaminated soils. The results of our research efforts to date will be presented.