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。
2
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。
3
Polar nuclei could autofused to a big secondary cell, but further differentiation of the cell was not observed.