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KMID : 0545119980080040412
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Journal of Microbiology and Biotechnology
1998 Volume.8 No. 4 p.412 ~ p.415
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Effect of Temperature on the Accumulation of Pb^2+ in Saccharomyces cerevisiae
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Suh, Jung Ho
Yun, Jong Won/Kim, Dong Seog
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Abstract
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The accumulation process of Pb^2+ in an industrial strain of Saccharomyces cerevisiae proved to be temperaturedependent, and was quite similar to chemical adsorption at the initial stage of Pb^2+ accumulation. The initial Pb^2+ accumulation rate increased from 11.4 to 46.2 ㎎ Pb^2+/g cell dry weight/day, in response to the increased temperature from 20℃ to 50℃, while the maximal Pb^2+ accumulation amount (175.8 ㎎ Pb^2+/g cell dry weight) was achieved at 30℃. The maximal Pb^2+ accumulation amount with temperature was independent of ion exchange with K^+ and Mg^2+.
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