Bacteriocinogeny inProteus rettgeri

Zusammenfassung In 2 von 7 Stämmen vonProteus rettgeri gelang die Induktion von Bakteriozinen unter der Einwirkung von Mitomycin C. Die gewonnenen Bakteriozine waren chloroformbeständig, trypsinresistent und hitzelabil.     

Separation of fast and slow components of S-100 protein by columm electrophoresis with continuous buffer system and application to micro electrophoresis

Zusammenfassung Die Trennung von schnellen und langsamen Komponenten von S-100-Protein wurde durch Disk-Elektrophorese mit einem kontinuierlichen Puffersystem ausgeführt und die Anwendungen auf Mikroelektrophorese des sauren Proteins von kleinen isolierten Mengen der Hirnsubstanzen (1 g Feuchtgewicht) dargestellt.

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The authors with to thank MissT. Tanaka for her skilful technical assistance.     

Experimentelle Reversion von Tumorzellen in vivo

Summary European eels with fast growing epidermal papillomas (cauliflower disease) were treated with quinine-sulphate. At concentrations of 15 to 60 mg/l and after 8 weeks of treatment, there occurred newly formed mucous cells and club cells in the tumor tissue. Tight contact between all cells was reestablished. The nucleus-plasma-relation had evidently decreased. Electron microscopical studies showed a restauration of degenerated cell organelles, especially of the outer membrane. Growth rate of the tumors was reduced, and at a concentration of 60 mg/l the tumor tissue ceased growing from the beginning of treatment.     

Interaction of daunomycin with nucleic acids: Effect of photoirradiation of the complex

Riassunto Quale effetto dell'irradiazione UV è stato osservato un legame insolitamente forte tra daunomicina ed acidi nucleici, che suggerisce la possibilità della formazione di un legame covalente.