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Process of Pb2 accumulation in Saccharomyces cerevisiae

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Abstract

Most of the Pb2+ taken up by Saccharomyces cerevisae was deposited in the inner part of the cells after 2 h. In the Pb2 accumulation experiments, the time to reach an equilibrium state was significantly shortened from 96 h to 24 h as the cell dry weight increased from 0.56 g/l to 5.18 g/l. The penetration time of Pb2+ to reach on the interacellular region (2 h) was quite different from that on the extracellular region (3 min). In the case of S. cerevisiae, the first step which a Pb2+ binds to cell wall within 3[f]5 min is metabolism-independent and the second step within 24 h is metabolism-dependent followed by the third step which is metabolism-dependent or -independent after 24 h.

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Authors and Affiliations

  1. Dept. of Chemical Engineering, Pusan National University, Pusan, Korea

    Jung Ho Suh & Seung Koo Song

  2. Dept. of Environmental Health, Catholic University of Taegu-Hyosung, Kyungbuk, Korea

    Dong Seog Kim

  3. Dept. of Biotechnology, Taegu University, Kyungbuk, Korea

    Jong Won Yun

Authors
  1. Jung Ho Suh
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  2. Dong Seog Kim
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  3. Jong Won Yun
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  4. Seung Koo Song
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Suh, J.H., Kim, D.S., Yun, J.W. et al. Process of Pb2 accumulation in Saccharomyces cerevisiae. Biotechnology Letters 20, 153–156 (1998). https://doi.org/10.1023/A:1005376424157

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