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- embryo sac cell 胚囊细胞
- The chalazal end megaspore develops into the embryo sac mother cell. 合点端大孢子发育为胚囊母细胞。
- Wall ingrowths occurred in central cell at micropylar region near embryo sac wall. 中央细胞在珠孔端与胚囊壁相邻的部位形成壁内突。
- In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure. 在裸子植物中，大孢子也产生一个细胞，因为它类似于被子植物的胚囊细胞，故也可以称之为胚囊。
- Both polygonum type and panicum type embryo sac have embellum. 有性生殖和无孢子生殖的胚囊中均有胚珠附器存在;
- Abnormal development was observed at tetrad and mature embryo sac. 在四分体和成熟胚囊时期观察到了异常发育现象。
- Mature embryo sac has 8 nucleis.Egg cell has obvious polarity.One synergid degenerates before fertilization, the other does after fertilization. 成熟胚囊为八核七细胞，卵细胞极性明显，助细胞在极核融合前已退化一个，另一个宿存，宿存助细胞丝状器明显，并保留退化助细胞的痕迹。
- Mature embryo sac can form from megaspore mother cell on the modified VW medium supplemented with 0.5mg/L BA and 0.1 mg/L NAA. 在改良VW培养基上添加0.;5 mg/L BA和0
- But whenthe pollen tubes reach the embryo sac, the egg apparatus has degenerated already and therehave been several free nuclei of Lhe endosperm in the central cell. 这种现象是花椒和野花椒在长期进化过程中形成的一种十分特化的适应。
- Genesis of megaspore and development of embryo sac in Carica papaya L. 番木瓜的大孢子发生与胚囊发育。
- These abnormalities would cause the abnormal structure of mature embryo sac. 这些异常可能最终导致多种结构异常成熟胚囊的形成。
- While in the Angiophyta the female gametophyte is simply the EMBRYO SAC. 被子植物门的雌配子体为简单的胚囊；
- The development of embryo sac in Prunus americana Marsh var. is often abnormal. 鸡心李(Prunus americana Marsh var.;)
- With embryo sac haustorium in chalazal end,the embryo sac is Endymion type. 胚囊发育类型为英地百合型 ,合点端形成胚囊吸器。
- Embryo sac elongated at 1-nucleate stage by fusion of small vacuoles. 功能大孢子时期核糖体密集, 线粒体和质体分裂以增加数目；
- Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants. 助细胞：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。
- The mature embryo sac contains an egg apparatus, a central cell and three antipodal cells. 成熟胚囊为蓼型胚囊，它包括卵器，一个中央细胞和三个反足细胞。
- So it defined as crassinucellate.The megaspore mother cell divides transversally to form a linear megaspore tetrad.The megaspore at the chalazal end develops into the embryo sac mother cell. 大孢子母细胞经横向分裂后产生一直线形的大孢子四分体，之后位居合点端之大孢子发育成胚囊母细胞。
- The central portion of an ovule in which the embryo sac develops; the megasporangium. 珠心胚珠的中心，胚芽囊在此发育；大孢子囊
- Enclosure of the nucellus by the integuments is incomplete, the embryo sac or, in gymnosperms, to the archegonium. 珠被并不是将珠心完全封闭，而是留有珠孔以便受精时花粉管进入胚囊，或裸子植物的藏卵器。
