Polar nuclei could autofused to a big secondary cell, but further differentiation of the cell was not observed.
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。
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。
Further development of the central cell mainly involved changes in the orientation of the polar nuclei and the distribution of the cytoplasm.
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。
Polar nuclei The, usually two, haploid nuclei found midway along the EMBRYOSAC, forming a binucleate central cell. They may fuse to form the diploid definitive nucleus.
通常指两个位于胚囊中间的单倍体核，他们可能融合形成一个二核的中央细胞。
The polar and egg nuclei of the female gametophyte are genetically identical.
雌配子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetical ly identical.
雌配子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetically identical.
子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetically identical.
子体中的极核和卵核遗传上是同一的。
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