细胞分裂

Methods Cell cultures were harvested and stained with haematoxylin and eosin,to analyze cellular metaphase morphology.

收获细胞经苏木素和伊红染色，观察分裂中期细胞核形态，计算核多极分裂象细胞百分比。

The developed smearing method was adopted to observe the process of PMC meiosis of 'Tainong 1' and 'Irwin'( Mangifera indica L.) in this article. Results were as follow: The cytoplasm devision of mango PMC was simultaneous type.

采用改良涂片法对低温和常温条件下杧果'台农1号'和'Irwin'花粉母细胞减数分裂过程进行观察，结果表明：杧果花粉母细胞胞质分裂为同时型。

There are four kind of isoforms of endothelin in human and other mammals named ET-1, ET-2, ET-3 and ET-β, which are slightly different in construction and pharmacological effect. In human beings, ET-1 is the dominative subtypes. ET-1 remains in blood at a low level about 5ng per liter on physical state. It is synthesized, stored, released and metabolized locally. The half-life of ET-1 is about 1 hour. ET-1 is the most potent vasoconstrictive factor till now, and it is more functional in vein than in artery. In vascular bed, there are two kind of ET receptors. Type A mainly located in smooth muscle cells, whereas type B in endothelial cells. The latter can stimulate intimal hyperplasia via a parasecretion way and activate some oncogenes such as c-fos and c-myc and then enhance their expression. These alterations result in constriction of blood vessels, thus the SMC steps into proliferate state from silent state.

人及哺乳动物体内有四种结构及药理学性质略有差异的异物体，分别为ET-1、ET-2、ET-3、ET-β，而在人主要是ET-1，在生理条件下，ET-1在血浆中含量较低，约为5ng〓，故ET-1不是一个循环激素，而是局部合成释放，局部起作用的活性物质，半衰期约1小时，ET-1是目前已知的最强的血管收缩剂，对静脉的作用比动脉强，在血管床，ET受体有A、B两型，A型主要分布在平滑肌细胞，B型主要分布在内皮细胞，它可以通过旁分泌途径刺激内膜增生，具有有丝分裂原效应，可以激活某些癌基因如C-fos、C-myc使其表达增强引起血管收缩，使静止期SMC进入增殖期，还可以通过信号传导途径，与bFGF、GTF-β、PDGF等生长因子协同作用，起共有丝分裂原作用。

Root tip generally became shorter and thicker because the aqueous extracts of B. pilosa could accelerate periclinal divisions and increased cell layers of the maturation zone and inhibit cell elongation.

三叶鬼针草水浸提液抑制了细胞有丝分裂的正常进行，并随着水浸提液质量分数的升高，分裂期细胞数目下降，微核率逐渐升高。

He continues, As the cells in the embryo divide and redivide, the subsequent generations know

他继续说，细胞在胚胎里分裂再分裂，随后这些细胞都知道什么时候分化成特定的

The average cell number of each embryo were significant differences between 12-24 hr and 36-48 hr treatment and 0-72 hr treatment of early blastula; the cleavage index of each embryo were significant differences between 0-12hr and 24-36 hr treatment and 0-72 hr treatment of the hatching of blastula; embryo cell number and cleavage of other treatments were no differences.

早期囊胚的12-24h处理组和36-48h处理组的每一胚胎平均细胞数与0-72h处理组有显著差异；扩张囊胚0-72h处理组的分裂指数与0-12h处理组和24-36h处理组有显著差异，其它各组的胚细胞数和分裂指数均无差异。

After division in conidial cell, the nuclei entered into germ tube and divided repeatedly, and therefore the number of nuclei in germ tube variably multiplied. The mitosis of F. graminearum has four phases.

观察表明，分生孢子细胞为单核，细胞核在分生孢子细胞内分裂后进入芽管，在芽管内进行多次分裂，使芽管内细胞核数目不断变化。

Megaspore mother cells undergo meiosis, which results in the formation of 4 megaspores in a row. The chalazal-most cell develops into an 8-nuclei embryo sac after 3 rounds of mitosis. A mature embryo sac is produced after cellularization and nuclear migration.

结果表明：1大孢子母细胞经过减数分裂形成直线排列的4个大孢子，其中珠孔端的3个大孢子退化，合点端的大孢子进行3次有丝分裂，形成八核胚囊， 8个核迅速细胞化，最终发育为成熟胚囊。

The results showed that among the parameters clinically used by the pathologists in the diagnoses of astrocytomas,tumor size,giant tumor cell number/high power fieldand mitoses/30HPF were closely related to the DI and PI of the...

结果发现，病理学工作者在星形胶质细胞瘤诊断时所依据的各种参数中，肿瘤体积、每高倍视野瘤巨细胞数和每30个高倍视野中核分裂数与星形细胞瘤DI及PI密切相关，肿瘤平均直径越大、瘤巨细胞数和核分裂数越多，则DI和PI值越高。

Pombes growth inhibition experiment. The difference has statistic significance (P＜0.01) between these cell treated with 5.0μM, 10.0μM and 20.0μM edelfosine for 6 h and those cell treated with 0μM edelfosine for 6 h.

利用粟酒裂殖酵母细胞胞核分裂试验和粟酒裂殖酵母DNA含量检测试验，观察依地福新对粟酒裂殖酵母细胞胞核分裂的影响。

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。