Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.
存在于开花植物胚囊内，是位于珠孔端的卵细胞两侧的两个单倍体细胞。
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Meanwhile the ratio of haploidcell in the callus dropped gradually, and a lot of polyploid and aneuploid cells appeared.
与此同时，单倍体细胞逐渐减少，产生大量多倍体和非整倍体细胞。
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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.