细胞分裂

The information can also transfer via a signal transduction pathway, therefore ET-1 can cooperate with some growth factors such as bFGF, TGF-β and PDGF. ET-1 is not only a potent vasoconstrictive peptide, but also a strong cellular division factor. It is an important regulator to intimal hyperplasia.

因为ET-1不仅是最强的血管收缩物质，而且还具有强烈的细胞分裂作用，所以，ET-1是内膜增生的重要调节因子，但目前对于静脉移植术后不同时期ET-1的动态变化及其与内膜增生相互关系的研究尚不多见。

The ratio of monthly multiplications was 3-6, the vitrification phenomena of clump shoots was seldom happened, and efficiency seedlings were easily rooted besease of the optimal length between two bud burls. 3. Clump shoots subculture: On the ground of the basic media: amended MS+ BA0.2mg L-1+NAA0.1 mg L-1+saccharose3% 11 experiment was tested:(1)add to AC 0.01%, 0.03%, 0.06%, 0.1% respectively, at the same time, improving the concentration of BA to 0.5mg L-1 and NAA to 0.2 mg L-1 (2) add to VH 1mg L-1, 2 mg L-1 3 mg L-1 respectively;(3) amended MS (organic compoung and Fe2+ 1.5 double), add to saccharose 3%, 4% 5% respectively.

壮苗和有效芽诱导：以改良MS+BA0.2mg·L~(-1)+NAA0.1mg·L~(-1)+3％蔗糖+0.55％卡拉胶为基础和对照，①分别加入0.01％、0.03％、0.06％、0.1％的活性炭，同时提高BA的浓度为0.5-1mg·L~(-1)，IAA浓为0.1-0.5mg·L~(-1)；②分别加入1mg·L~(-1)、2mg·L~(-1)、5mg·L~(-1)的生物素，③改良MS(铁盐、有机物1.5倍)，蔗糖分别增加为4％和5％，共11个处理，结果表明：活性炭对邓恩桉组培苗的生长起抑制作用，生物素所起的作用不明显，邓恩桉组培继代苗的生长离不开细胞分裂素和生长素，一旦缺少继代苗很快枯萎死亡。

After cells divided several times, their DNA was reexamined for the type of damage associated with both aging and cancer.

在细胞分裂几次之后，再检查与衰老和癌症均有关的DNA损伤类型。

Growing regulation of ten kinds of plant under different communities is that the plant grows fast in the nutrition stage and reaches the maximum in the heading stage, thereafter the growing velocity slackens gradually.

在恢复演替过程中，生长素和赤霉素一直保持相对稳定；细胞分裂素经历了由单峰型曲线→双峰型曲线→单峰型曲线的转变过程；而脱落酸经历&突变&后趋于稳定。

"In mammal s, the fertilized egg or zygote undergoes cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

"In mammals, the fertilize d egg or zygote undergoes cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

"In mammals, the fertilized egg or zygote undergo es cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

The most important element in cell division and replication is the DNA, a double-helix structure in the cell nucleus.

细胞分裂最重要的物质是DNA，一个在细胞核中的双股结构物质。

In this study, a test of blood cells exposed to cell phone radiation caused the nucleus of the cells to divide.

在这项研究中，测试血细胞暴露在手机辐射造成核细胞分裂。

Plant hormone s include ethylene, abscisin, auxins, gibberellins, and cytokinins.

植物激素有脱落素、生长激素、赤霉素与细胞分裂素。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。