first polar cell 释义第一极细胞
polar cushion cell 极垫细胞
polar subsidiary cell 极副卫细胞
cell polar 细胞极
polar r cell 极细胞
polar circulation cell 极地环流圈
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。
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。
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