Mitotic division in germ tube of Fusarium graminearum Schwabe
禾谷镰孢菌Fusarium graminearum Schwabe分生孢子萌发过程中的核相变化及有丝分裂过程观察

The nuclear phase and mitosis in germ tube of Fusarium graminearum were studied with staining by Giemsa techniques. There was single nucleus in conidial cell. After division in conidial cell, the nuclei entered into germ tube and divided repeatedly, and therefore the number of nuclei in germ tube variably multiplied. The mitosis of F. graminearum has four phases. The chromosomes gradually shortened and thickened during prophase, and at metaphase the chromosomes were distinctly visible. The chromatids separated at anaphase and moved to opposite poles, and then, daughter nuclei were shaped at telophase. Synchronous and asynchronous chromosome separation was seen, and it was more common that the lagging chromosomes formed anaphase bridges.