极核细胞能自主融合成为一个次生大细胞，但未观察到融合后的细胞进一步分化。
Polar nuclei could autofused to a big secondary cell, but further differentiation of the cell was not observed.
成熟的胚囊是五核胚囊：由近珠孔端的卵细胞和两个助细胞以及两个中央极核细胞构成的。
The mature embryo sac was one with five nucleus, i. e., egg apparatus and two-nucleus central cell.
中央细胞以后的发育主要是极核的发育和极核周围胞质的变化。
Further development of the central cell mainly involved changes in the orientation of the polar nuclei and the distribution of the cytoplasm.
动物性极：与包含细胞核和多数细胞质的植物性极相对的卵的部分。
Animal pole: the portion of an egg opposite the vegetal pole that contains the nucleus and MOST of the cytoplasm.
CB能抑制卵母细胞激活后第二极体排出，从而提高原核的形成率。
CB can increase the two pronuclei formation rate of oocytes by inhibiting the extrusion of second polar body.
目的探讨卵细胞第一极体形态与原核期受精卵形态、卵裂期胚胎质量的关系。
Objective To investigate the relationship between the first polar body morphology of oocyte and the zygote morphology in pronucleus stage, embryo quality in cleavage stage.
成熟胚囊由印器，具二极核的中央细胞及三个反足细胞组成。
The mature embryo sac comprises an egg apparatus, a central cell with two polar nuclei and three antipodal cell.
成熟胚囊由印器，具二极核的中央细胞及三个反足细胞组成。
The mature embryo sac comprises an egg apparatus, a central cell with two polar nuclei and three antipodal cell.
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