细胞分裂

Results of study on the behaviour of pine nucleolus during the cell cycle suggested that part of the nucleolar substance, at least, entered the chromosome or attached to the chromosome surface during metaphase and was librated from chromosome to form a new nucleolus during anaphase in higher plants.

对松核仁细胞周期中变化的研究发现，在有丝分裂中期，至少部分核仁成分进入染色体内部或附着在染色体的表面，而在后期从染色体中出来形成新的核仁。

Interleukin-2 is a lymphokine synthesized and secreted primarily by T lymphocyte or T helper lymphocytes that have been activated by stimulation with certin antigens or mitogens.It is one of the important T cell growth factors.

白细胞介素-2(Interleukin-2，IL-2)主要是在促有丝分裂素或特异性抗原刺激下，由T淋巴细胞或T淋巴细胞系产生的一种淋巴因子，是机体主要的T细胞生长因子之一。

First, new cells are produced by division, in the higher plant; this occurs most commonly, although not exclusively, in regions called meristems.

首先，通过分裂产生新细胞，这在高等植物中尽管不只是但通常是发生在称为分生组织的区域内

The results were as follows:The first, there were significantly differences percent between 0.6μg/mlgroups and other three groups (0.2μg/ml groups, 0.4μg/ml groups and 0.8μg/mlgroups) in 2 hour groups; and there were significantly differences between0.4μg/ml groups and other three groups in 4 hour groups; and there weresignificantly differences between 0.6μg/ml groups and other three groups in 6hour groups; and there were significantly differences between 0.4μg/ml groupsand other three groups in 8 hour groups on the metaphases (P＜0.05), in theexperiment of the effect on the mouse 4- cell embryo stage single blastomere ofcolchicine with different concentrations and duration, by x~2 statistical analysis.

实验结果如下：1、在确定秋水仙素不同处理浓度和时间对小鼠4-细胞期胚胎单卵裂球中期分裂相数影响的实验中，经统计分析，阻断培养2小时组中0.6μg／ml浓度组与其他三组差异显著(0.2μg／ml组、0.4μg／ml组和0.8μg／ml组)；阻断培养4小时组中0.4μg／ml浓度组与其他三组差异显著；阻断培养6小时组中0.6μg／ml浓度组与其他三组差异显著；阻断培养8小时组中0.4μg／ml浓度组与其他三组差异显著(P＜0.05)。

C-banding analysis of satellites in 9 accessions of Ae.tauschii native to China was carried out with C-banded miotic interphases,prophases and metaphases,The results showed that the c-banded heterochromatin of satellites of Ae.tauschii did not change in size during the whole miotic stage and novariaton was observed among plants and cells within a accession,while polymorphism in c-banded satellites between different accessions was found.

5D染色体是节节麦整个染色体组中唯一的1对随体染色体，其随体位于5D短臂的末端。对来源于中国的9个不同的节节麦居群的吉姆萨C带分析表明：同一份节节麦居群内不同植株或不同细胞，这个端部随体在整个有丝分裂前期、中期和间期都很稳定，表现为大小、强弱一致的端部特征带。

Vascular endothelial growth factor is a potent and selective endothelial cell mitogen.

由于血管内皮细胞有丝分裂是血管形成的先决条件，因此，VEGF一经发现即受到重视。

In addition, VEGF is a selective mitogen for endothelial cells, and may directly stimulate cell proliferation.

实验发现，VEGF通过与其受体作用既可以提高血管通透性，有利于血浆蛋白外渗，又可有选择地直接作用于血管内皮细胞，刺激其分裂增殖。

Abstract］ Objective:To investigate if chloride channel ClC2 could be phosphorylated by mitogen activated protein kinase for further study of its regulation mechanism in proliferation and differentiation of cells.

目的：检测ClC2是否能被促分裂原活化蛋白激酶磷酸化，为进一步研究其在细胞增殖、分化过程中的调控机制提供基础。

The mitogenic activity of raFGF is lower than that of waFGF and raFGF has little effect on apoptosis.

raFGF的促分裂作用低于waFGF，而对细胞凋亡的影响不明显。

BACKGROUND: Basic fibroblast growth factor belongs to active peptide, which is an effective mitogenic factor.

摘要背景：碱性成纤维细胞生长因子属于活性单腱多肽，是一种有效的促有丝分裂因子。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了