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- Any of various aquatic protozoans of the order Heliozoa, having numerous spindlelike pseudopods that radiate from a central cell mass. 太阳虫目动物太阳虫目中的任何一种水生原生动物,长有无数纺锤状的假足,由一个中心细胞团向四周扩散
- Young anthers are composed of a protoderm and a central cell mass in early July. 七月上旬,幼花药,由原始表层和中央细胞团组成。
- Anther primordia are composed of the protoderm and the central cell mass in late September. 十月下旬时花药原体可分为原始表层与中央细胞团。
- The most prominent sign of degeneration is that the central cell nucleus produced nuclear vacuoles. 没有受精的中央细胞退化时最显著的特点是细胞核产生核膜囊泡。
- 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。
- These ingrowths extended into the lumen of central cell and fused with the linear endoplasmic reticulum(ER) by many electron-dense vesicles. 内质网线状排列,通过电子致密小泡相互连接; 同时,小泡将内质网和壁内突融合,成为垂周壁,将合胞体的胚乳分隔成一个个向心开口的圆柱体。
- 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。
- Pollen tube entered and destroyed one synergid and released successive round staff between egg and central cells.One sperm nucleus entered egg and the other entered central cell. 两个精核分别进入卵细胞和中央细胞分别与卵核和极核融合。
- 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。
- 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;
- The main abnormality in the mature embryo sac was single central cell(7.1%) and nucellar cells invaded embryo sac(7.1%). 6. 最显著的异常是珠心组织侵入胚囊及极核的异常(1个极核),比例均为7.;1%25。
- In mature embryo sacs, significant amounts of CaM kinase was also observed in the egg cell, central cell and at the interface of these two cells. 在成熟胚囊的卵细胞、中央细胞以及二者的分界面上也有少量分布。
- Pollen tube entered one synergid, and released two sperms between egg and central cells. 精子脱掉细胞质鞘后,形成精核与细胞质体;
- When the root structure is damaged, the epidermis breaks,the cortex and central cells disintegrate and die gradually. 根结构受到破坏后,表皮层断裂,皮层、中柱细胞逐渐解体死亡。
- During the foam stage of archegonium, the wall between the jacket cells and the central cells became fairly thick and the plasmodesmata present at the thinner area. 在颈卵器发育的泡沫化阶段,套细胞和中央细胞的接触壁不均匀加厚较为显著,在较薄的区域可见胞间连丝。
- Such values are central to our way of life. 这些价值对于我们的生活方式是至关重要的。
- VCR has the effect of anti-LNCaP cell. It can induce the LNCaP cell to die. The G2/M is the central cell cycle point effected by VCR and it causes the rate of G2 tumour cells to increase. 4) VCR具有抗LNCaP细胞的作用,它可以诱导LNCaP细胞凋亡,并且作用的细胞周期点是在G2/M期,会引起G2期肿瘤细胞比例的升高。
- The mature embryo sac contain an egg apparatus, a central cell, many spherical crystalline body liked starch grains, the antipodal cells and many nucellar cell remain firstly and disappeared at last. 成熟胚囊包括卵器,一个中央细胞,反足细胞与珠心核在胚囊初期存在而最终消失解体。
- She stay in a small hotel near Central park. 她住在中央公园附近的一家小旅馆。
- Choose a central location for your house. 把你的家选在一个便利的地方。