Jones J C, Gray B F
Microbios. 1978;22(89-90):185-94.
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.
描述了一种旨在研究在恒定条件下表面菌落生长速率的装置，即不像在封闭培养皿中那样受营养物质扩散影响。与封闭系统中的经典实验不同，在超过72小时的时间段内获得了菌落半径的指数增长。分析技术表明营养物质浓度梯度已被消除。
