. Ciba Foundation symposium on drug resistance in micro-organisms: mechanisms of development. Drug resistance in microorganisms. Induced Mutational Changes in Yeast 119 S. cerevisiae XII; the intensity of fermentation of the former was somewhat less than that of the latter, during the first 4-5 days. The scheme of directed changes of the fermentative properties of yeasts under the influence of a specific substrate J n:>c> 5:. HOCHO^^ XH,OH -Jilt 0 (S H^H,OH Activation of substrate by enzyme Fig. 1. Scheme of directed changes of fermentative properties of yeast under the influence of the
. Ciba Foundation symposium on drug resistance in micro-organisms: mechanisms of development. Drug resistance in microorganisms. Induced Mutational Changes in Yeast 119 S. cerevisiae XII; the intensity of fermentation of the former was somewhat less than that of the latter, during the first 4-5 days. The scheme of directed changes of the fermentative properties of yeasts under the influence of a specific substrate J n:>c> 5:. HOCHO^^ XH,OH -Jilt 0 (S H^H,OH Activation of substrate by enzyme Fig. 1. Scheme of directed changes of fermentative properties of yeast under the influence of the specific substrate. Acting specific substrate Active enzyme appearing in the cell (Fig. 1) shows that on the medium containing maltose, forms of yeast have been obtained which readily ferment maltose and less readily ferment sucrose. The enzyme developed in these cells is a-glucosidase, which is known to activate maltose and sucrose. Two forms of yeast have been obtained on the medium with sucrose. One form is analogous to that obtained on maltose;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ciba Foundation; Wolstenholme, G. E. W. (Gordon Ethelbert Ward); O'Connor, Cecilia M. (Cecilia Mary), 1927-. Boston, Little, Brown
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