Surface colony growth in a controlled nutrient environment. 3. Dependence of growth constant on nutrient concentration.

The growth rates of yeast surface colonies under constant nutrient conditions were studied as a function of nutrient concentration. This was complementary to the initial experiment to measure the rates under such conditions, and to the investigation of the effects of alcohol. The possibility of fitting an equation of the Michaelis-Menten type to the variation of growth rate with carbon source concentration is considered.