ウニ卵の人工處女生殖の研究 : XVI.受精膜の構造とその形成についての觀察

概要

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Strongylocentrotus eggs were placed on a slide-glass and covered with a cover-glass. Four corners of the cover-glass were fixd to the slide-glass with vaseline. Keeping the eggs between two glasses, experiments were made to activate the eggs by butyric aced. When the eggs were activated, blister formation began. At first, many small granules were observed in the blister (fig. 1, a). They were moving violently. I concluded that the granules were derived from Janus green granules. In a few minutes, some of the granules aggregated and formed several globules (fig. 1, b, c). They began to attach to inner surface of the fertilization membrane (fig. 1, d, e), and the membrane thickened by degrees. Structure of the fertilization membrane was also observed. Fig. 2 shows the sketch of the structure. This structure was not found in the stage of a and b of fig. 1 and this appeared in the stage of d and e. I convinced myself that this structure was derived from the granules in the blister.
社団法人日本動物学会の論文
1950-05-15