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Effects of Hg2+ and cell conditions on Pb2+ accumulation by Saccharomyces cerevisiae |
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| Authors: | J H Suh D S Kim |
| Institution: | (1) Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo, Japan;(2) Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Tokyo, Japan;(3) Department of Applied Biological Chemistry, School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan; |
| Abstract: | Pb2+ accumulation in Saccharomyces cerevisiae changed by Hg2+ and cell conditions. The accumulated Pb2+ amounts decreased from 0.22 to 0.02?mmol Pb2+/g cell dry weight by the existence of Hg2+. But the total metals accumulation (0.42?mmol metal ions/g cell dry weight) was not changed. The order of accumulated Pb2+ amounts (mg Pb2+/g cell dry weight) according to the cell conditions at an equilibrium state was shown as the original cell (260)?>?5?times autoclaved cell for 15?min (150)?>?grinded cell after drying (100)?>?autoclaved cell for 5?min (30). |
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