The inhibition of cell division in Saccharomyces cerevisiae (Meyen) by carbon dioxide

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概要

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• A specific inhibiting effect of CO_2 on cell division in Saccharomyces cerevisiae (Meyen) was shown. Two strains of S. cerevisiae were grown in chemically-defined media in specially-designed pressure chambers equipped with sensitive pressure-measuring devices. The chambers were pressurized with 40 psi of N_2 or CO_2. Inhibition of cell division and of production of new buds was not caused by N_2 but was caused by CO_2 when either endogenously produced or added. In contrast, metabolic production of CO_2 was unaffected by endogenously-produced pressures which totally inhibited cell division. Bud formation and new-cell formation (cell division) were almost totally inhibited by 40 psi of added CO_2 when compared with aerated culture. The DNA content per cell, however, was nearly twice as great in the CO_2-treated cultures as In the controls. Thus inhibition of cell division in S. cerevisiae must occur by some mechanism other than by inhibition of DNA replication.

• 日本植物生理学会の論文

著者

• Krauss Robert

  Department Of Botany University Of Maryland

• Norton Jane

  Department Of Botany University Of Maryland

関連論文

• STEROLS OF CHLORELLA. I. THE NATURALLY OCCURRING STEROLS OF CHLORELLA VULGARIS, C. ELLIPSOIDEA, AND C. SACCHAROPHILA
• The inhibition of cell division in Saccharomyces cerevisiae (Meyen) by carbon dioxide

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