きちじやうさうノ細胞學的研究III大芽胞母細胞ノ減數分裂及ビ胚嚢ノ形成ニ就イテ
1940 年 54 巻 648 号 p. 483-493
詳細
1940 年 54 巻 648 号 p. 483-493
1. Macrosporogenesis and the formation of the embryo-sac of Reineckia carnea KUNTH are described.
2. The heterotypic metaphase of the embryo-sac mother cell shows 19 bivalent chromosomes.
3. Of the four cells (tetrad) resulted from the meiosis of macrosporocytes only one remains as megaspore, the other three disintegrating.
4. Three mitoses of the embryo-sac nucleus give rise to a octonuclear embryo-sac of normal type.
5. The seeds of this plant are capable of germination. The partial sterility seems not due to the anomaly of meiosis, but to be nutrive nature.
