Saiki Hamaguchi Miyako, Hiramoto Y
Biological Laboratory, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, Japan 152.
Dev Growth Differ. 1980;22(3):517-530. doi: 10.1111/j.1440-169X.1980.00517.x.
The observations of the fertilization process in the heart-urchin, Clypeaster japonicus with a differential interference microscope indicate that the sperm pronucleus is carried to the center of the egg by the growth of the sperm aster as stated by Chambers (5), and that the egg pronucleus is carried to the center of the aster by a filamentous structure formed between them. The curved path of egg pronucleus in the fertilized egg is interpreted as the combination of the movement of the center of the aster and the movement of the egg pronucleus toward the center of the aster. The movement and the rotation of the sperm head result from pushing by the tail being engulfed in the egg.
用微分干涉显微镜对日本心形海胆受精过程的观察表明，精子原核如钱伯斯（5）所述，通过精子星体的生长被带到卵的中心，而卵原核则通过它们之间形成的丝状结构被带到星体的中心。受精卵中卵原核的弯曲路径被解释为星体中心的移动与卵原核向星体中心移动的结合。精子头部的移动和旋转是由被卵吞噬的尾部推动所致。
