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  • Title: Surface colony growth in a controlled nutrient environment. 1 The exponential law.
    Author: Jones JC, Gray BF.
    Journal: Microbios; 1978; 22(89-90):185-94. PubMed ID: 384176.
    Abstract:
    An apparatus designed to study the growth rates of surface colonies in constant conditions, i.e. not affected by nutrient diffusion as in a closed Petri dish, is described. In contrast to classical experiments in closed systems, an exponential growth of colony radius is obtained for a period of more than 72 h. Nutrient concentration gradients are shown to be eliminated by analytical techniques.
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