细胞分裂

The acquisition of friable calli and the establishment of the cell suspension cultures of tobacco NC89 leaf were studied.

研究表明细胞分裂素与生长素浓度的比值高时，有利于芽的分化，相反细胞分裂素与生长素浓度的比值低时，有利于根的分化。

The action of SOSP-9607 on AS-ODN and the cell division was blocked in metaphase and inducer cell apoptosis.

SOSP-9607在AS-ODN作用下，细胞分裂阻滞在分裂期的中期，并诱导细胞发生凋亡。

Our observations with transgenic plants showed that the PF40 gene affected the growth of lateral shoots developing in the basipetal pattern early after floral transition.

测量结果表明PF40基因过量表达的转基因谷子生长素的含量降低为对照的0.6～0.8倍，而细胞分裂素的含量较对照约升高0.2～0.35倍，生长素与细胞分裂素的比值在转基因植物中改变明显，降低到对照的一半。

One of the serially aligned beadlike granules of concentrated chromatin that constitutes a chromosome during the early phases of cell division .

染色粒在细胞分裂早期，一条顺序排列的珠状染色质颗粒链构成了染色体染色质DNA在细胞分裂之前必须复制。

We suppose that the changes ofcytokinin sorts are results of catabolic enzyme.

我们推测细胞分裂素的这种变化可能是细胞分裂素代谢酶活性变化的结果。

Arabidopsis response regulators,ARR4 and ARR5, were induced by the increased cytokinin contents at different time after seed germination. ARR4 responded to cytokinins at early time of seed germination, especially on the 6 d when seedlings were around true leaf initiation, while cytokinins induced ARR5 activation after 6 d of seed cultivation in light conditions, an obvious increase was on the 20 d when seedlings were around inflorescent shoot initiation.

拟南芥植物细胞分裂素反应调节基因ARR4和ARR5在植物发育的不同时期应答植物体内增加的植物细胞分裂素，ARR4的应答反应比ARR5早，种子萌发后的第6天幼苗真叶形成初期，ARR4基因被明显诱导；而ARR5的应答反应在幼苗真叶形成后的几个时间段均能检测到，并且在种子萌发后的第20天，花枝形成开始时特别明显。

Just the CTK content, the ABA content in its tiller node were most significantly related and most significantly negatively related to the tiller number of intervarietal hybrid respectively, but beside the CTK content, the ABA content in its tiller node were significantly related and significantly negatively related to the tiller number respectively, the IAA content were also most significantly related to the tiller number of interspecific hybrid, this may be the reason why the interspecific hybrid had a high fertile spike heterosis.

品种间杂种分蘖盛期分蘖节仅细胞分裂含量与分蘖数呈极显著的正相关，而脱落酸含量与其分蘖数呈极显著的负相关。而种间杂种分蘖盛期分蘖节中的细胞分裂素含量与其分蘖数显著正相关、脱落酸含量与其分蘖数呈显著负相关，另外其分蘖节中的生长素含量也与其分蘖数呈极显著正相关，IAA在种间杂种中的共同参与可能是种间杂种具有较强的分蘖成穗能力的原因。

Hec1 gene silence may lead to cell cycle arrest in mitotic phase and cell apoptosis.

抑制Hec1基因表达，可以明显阻滞细胞分裂并停留在有丝分裂中期，同时诱导细胞凋亡。

Low temperature increased IAA content,but decreased the ratio of flower to apical point,ZR was similar to IAA.The change of GA was complicate,ABA content increased;Parthenocarpical cultivar had a higher ratio of flower to apical point which more than one atABA and ZR,the ratio was the highest among cultivars at GA and IAA.

低温增加了IAA含量，但降低了花器官与生长点的比值，细胞分裂素含量变化表现与IAA相似，赤霉素含量变化复杂，ABA含量增加；单性结实品种其ABA、细胞分裂素含量在低温下具有较高的花器官和生长点比值且大于l，赤霉素和生长素含量该比值也高于其他品种。

We obtained 132 cDNAs including 118 unique genes and fall them into seven categories after analyzed by BLASTX and Go: phytosynthesis (8.7%), protein synthesis (19.1%), cell proliferation and differentiation (22.6%), cell enlargement (5.2%), metabolism(7.8%) and stress response (7.8%).

结果表明，自由态多胺的含量和多胺合成酶基因的表达在果实发育前期较高，并且，多胺在细胞分裂旺盛的外果皮中分布较多，说明多胺主要在黄瓜果实发育的细胞分裂期起作用。

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