受精卵核

The sperm treated with trypsin, plasmin, pepsin and succinic acid sodium respectively, only trypsin can dissociate the eupyrene sperm bundles and improve the motility of apyrene sperm synchronously, and olso only the trypsin-treated sperm have the ability of fertilization.

用胰蛋白酶、血纤维蛋白溶酶、胃蛋白酶及琥珀酸钠处理精液，仅胰蛋白酶能够在很好的溶解有核精子束的同时提高无核精子的运动性，也只有胰蛋白酶处理的精液人工授精能够得到受精卵。

Then one ovule degenerated, the other which contained zygote kept on developing. Embryo undergone proembryo and globular embyo stage in early part of June. Heart stage embryo developed into torpedo stage, and meanwhile nuclear endosperm formed cellwalls in later June. Birch Fruit matured in July..

此后，一个胚珠退化，另一个含有受精卵的胚珠继续发育。6月上旬，白桦胚正经历原胚球形胚阶段。6月下旬核型胚乳细胞化，心形胚发育为鱼雷胚。7月，白桦果实成熟。

During the process of nuclear reprogramming, the zygotes of the normal embryos and the donor nuclei of thecloned embryos cease their unique repertoire of gene expression and reset their gene expression to the totipo-tent status, and then the normal and cloned embryos redifferentiate from the totipotent status to variousdifferentiated states for tissue generation or organogenesis.

通过细胞核重编程，首先，受精卵和克隆胚胎的供体核停止其特有的基因表达程序，恢复为全能状态的基因表达程序；然后，受精胚胎和克隆胚胎的细胞再从全能状态重新进入分化状态，最终形成各种组织和器官。

In addition, we studied the distribution of mitochondria in metaphase Ⅱ rabbit oocytes, zygotes and early embryos by two active mitochondria dyes and revealed the change of active mitochondria during early development of rabbit embryos. We also found that the distribution of microfilaments and microtubules have similar patterns to that of active mitochondria, which is an important basis for further development of animal cloning study using the recipient oocytes derived from rabbit.

此外，我们应用两种线粒体荧光染料研究了日本大耳白兔体内成熟卵母细胞、正常交配后收集的受精卵及早期体外发育胚胎的活性线粒体的位置变化，首次揭示了兔早期胚胎中活性线粒体的变化特征及其与微丝微管变化的相关性，为进一步开展以兔卵母细胞作为核移植受体的动物克隆研究打下了重要的基础。

PKC isoform was typically concentrated around the condensed chromosomes before the MI stage, but localized in the pronuclei of zygotes and the nuclei of blastomeres of early embryos.

PKC亚形集中在MI期前浓缩的染色体周围，也位于受精卵原核或早期胚胎分裂球的核。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。