STUDIES ON MUTABILE TYPE VARIATION (MURASE) WITH SPECIAL REFERENCE TO INFLUENCE OF GALACTOSE ON THE VARIANTS

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概要

• 論文の詳細を見る

• The mutabile type variation (Murase) described here represents a particular phenomenon which is observed in many strains of E. coli, Salmonellae, and Shigellae. Typical features of the mutabile variant (M) are connected with changes of colonial appearance and morphology under influence of galactose (or lactose, raffinose).Influences of galactose on these variants have been discussed in this report. It has been revealed that galactose inhibits the growth of M cells and gives an in-hibitory effect on their oxidation of certain amino acids. Detailed studies on mechanism of this effect are required in the future.Daughter cells, on the other hand, show characteristics resistant to this galactose effect, though they are still not able to utilize galactose.Other phenomena of daughter cell formations including B. coli mutabile of Massini, which was definitely distinguished from the variation mentioned here, have been discussed in relation with the sugar used in the medium.

• The Keio Journal of Medicineの論文

著者

• USHIBA DAIZO

  Department of Bacteriiology, School of Medicine Keio University

• KITASATO BUJIRO

  Department of Bacteriiology, School of Medicine Keio University

関連論文

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• STUDIES ON THE IMMUNITY OF THE EXPERIMENTAL TYPHOID:I. A REVIEW OF EXPERIMENTS CARRIED OUT IN OUR LABORATORY DURING THE PAST TWENTY YEARS
• STUDIES ON MUTABILE TYPE VARIATION (MURASE) WITH SPECIAL REFERENCE TO INFLUENCE OF GALACTOSE ON THE VARIANTS
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