摘要
本文根据30种硬骨鱼类卵母细胞发生过程中核仁排出物的细胞学观察结果,对硬骨鱼类卵母细胞中核仁排出物的排出方式、排出时间以及其生理作用等问题作了些探讨。
This article is a report on the nucleoloid substance of oocyte in 30 species of fish. Samples were collected from Zhoushan, Shaoxing and Xinanjiang in Zheniang Province. The frequently observed drainage phenomenum of nucleoloid substance into cytoplasm is considered to be probably related to the yolk formation within an oocyte. The patial rapture of the nuclear membrane provides the passage of the substance and this drainage process occurs from the middle stage of oocyyte in Phase Ⅱ to the period in Phase Ⅲ.