摘要
From a stock culture of Cylindrotheca sp., non-motile colony-forming cells were observed and isolated.Colony-forming cells produced both single cells and colony-forming cells in liquid medla.the rate of single cell production varied among clones.
From a stock culture of Cylindrotheca sp., non-motile colony-forming cells were observed and isolated.Colony-forming cells produced both single cells and colony-forming cells in liquid media.the rate of single cell production varied among clones.The single cells derived from colony-forming cells were also isolated , which were able to produce both colony-forming cells and single cells in liquid media. The cells derived from colony-forming cells never moved on the agar surface.