[Relation of fluctuations in the physiological traits of a continuous Saccharomyces cerevisiae culture to the cell division cycle].

Such physiological characteristics of a continuous Saccharomyces cerevisiae culture as the rate of O2 uptake and CO2 evolution, the rate at which the medium was acidified, were found to vary. When the flow rate was increased from 0.05 to 0.1 h-1, the period of variations also rose (from 3 to 33 h) and two maxima were detected in the quantity of budding cells within one 33-h period of the variations. These findings indicate that the variations do not depend on changes in the physiology of the cell in the course of its division cycle.