微生物の発育に及ぼす金属イオンの影響 (第3報) : 酒清酵母の発育に及ぼすZn^<++>の影響

概要

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The authors reported in the previous papers that Zn^<++> is an essential element for the growth of yeast. In order to clarify this matter, experiments were carried out, and the results obtained are briefly summarized in the following.1) Qo_2 and RQ of the yeast grown in the absence of Zn^<++> were 10.2 and 8.6,respectively, while those of the yeast grown in the presence of it were 4.2 and 2.1,respectively.2) Cytochrome oxidase and cytochrome c contents of the yeast grown in the absence of Zn^<++> were 930 μl/hr/g dry weight and 36 γ/g dry weight, respectively, while those of the yeast grown in the presence of it were 1670 μl/hr/g dyr weight and 50γ/g dry weight, respectively.Similar experiments were also carried out by using candida utilits. In shaking cultures, a fair growth of yeast could be observed in a medium lacking Zn^<++>. But, in surface cultures, the effects of Zn^<++> could not be observed.
社団法人日本生物工学会の論文
1960-08-15