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- 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。
- Firstly, several layers of the nucellar cells at the micropylar end elongate longitudinally. 接着,位于珠心组织最上部(珠孔端)的珠心细胞启始死亡;
- The haustorium cellularizated from the micropylar end to chalazal end at the later globular stage. 球形胚晚期吸器自珠孔端向合点端逐渐细胞化。
- Seeds ellipsoid, glabrous, nearly without endosperm, with thickened tissue at micropylar end. 种子椭圆形,无毛,近无胚乳,在珠孔端具加厚组织。
- Seeds began to germinate after two weeks.Radicles elongated out of the micropylar end of the soft endopleura-formed germ-tube-like organ and then elongated gradually. 培养两周后种子开始萌动,首先胚根从软化的内种皮的种孔端伸出,接着形成芽管状物,之后芽管状物逐渐伸长;
- When the free nuclei of the endosperm were 16 or 32,the nucellar embryo initial (s) originated from the nucellar cells near the micropylar end of the embryo sac. 当胚乳游离核达到16或32个时,最早的珠心胚原始细胞由靠近胚囊珠孔端的珠心细胞分化形成。
- The two polar nuclei move from antipodal end to micropylar end before sperm releasing in a gap between egg cell and central cell and subsequently taking off cytoplasm one after another. 两精子释放于卵细胞与中央细胞的间隙后,精子先后脱去细胞质鞘,移向卵核的精核的运动速度快于移向极核的精核;
- Ingrowths at the micropylar end of embryo sac from late stage of 1-nucleate to cellularization enlarge the surface of membrane greatly so as to enhance non-symplastic transportation. 在单核胚囊发育后期至细胞化胚囊,是通过珠孔端所形成的壁内突来扩展质膜表面积, 以加强非共质体之间物质的运输。
- The accident put an untimely end to the party. 意外事故使聚会匆匆结束了。
- The boys were itching for the lesson to end. 那些男孩子们渴望下课。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- The company declared a large dividend at the end of the year. 公司在年底宣布分发高额股息。
- The army was disbanded when the war came to an end. 战争结束时,军队即被解散。
- The two teams were all square at the end. 最后两队以积分相同而结束。
- Are there any exams at the end of this term? 这个学期期末有考试吗?
- The battle finally brought the war to an end. 这一仗使这场战争终告结束。
- The rent is due at the end of each quarter. 缴纳租金以每季度末为期限。
- Wasteful people usually end up in debt. 挥霍浪费者最后往往负债。
- There are commonly eight nuclei in the embryo sac: the egg apparatus at the micropylar end, made up of an gee nucleus and two synergid nuclei; 胚囊:是存在于显花植物胚珠珠心中的一个大型椭圆状的囊状结构,卵细胞受精和随后的胚胎发育均在这里进行。
- A year in America will cost you no end of money. 在美国住一年要花很多的钱。