植物细胞分裂素

The plant expression vector for driving reporter gene GUS was successfully constructed, This research laid the foundation for studying the anabolism of phytoeytomine and the regulation of plant growth and development.

结论］该研究为研究植物细胞分裂素的合成代谢和植物生长发育的调控奠定了基础。

A cytokinin originally isolated from young corn kernels and found later in various other plants.

玉米素最初从幼嫩的玉米芯分离出来的一种细胞分裂素，后在各种其它植物中都有发现

Cytokinin:any of a class of plant hormones that promote cell division and growth and delay the senescence of leaves.

细胞分裂素：一种促使细胞分裂和生长并且延迟叶子枯萎的植物激素。

The plant phytohormone cytokinin regulates numerous growth and developmental processes by regulating cell division and cell differentiation.

在高等植物中，细胞分裂素通过对细胞分裂与分化的调节而广泛参与了对植物生长发育的调控。

In the last ten years, Chinese scientists have found that angustmycin A had biological activities of cytokinin. It has a promising applications in the botanical research and the agricultural production.

近十年来，我国科学工作者发现它具有植物细胞分裂素的生物活性，在植物学研究及农业生产上也有良好的应用前景。

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。

ARR4 responded to cytokinins at early time of seed germination, especially on the 6 d when seedlings were around true leaf initiation, while cyto- kinins induced ARR5 activation after 6 d of seed cul- tivation in light conditions, an obvious increase was on the 20 d when seedlings were around inflorescent shoot initiation.

在双组分信号传导途径中，从受体到反应调节基因传导磷酸基团的传导基因AHP4在幼苗发育的后期种子萌发后的第20和30天，应答植物体内增加的植物细胞分裂素，并且在花枝形成初期比较明显。

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。

In this paper, we studied seasonal variation of endogenous IAA、 GA_3、ZR and ABA content of Leymus chinensis、 Agropyron michno、 Stipa grandis、 Cleistogenes sguarrosa、 Koeleria cristata、 Carex korshinskyi、 Allium bidentatum、 Artemisia frigida, Kochia prostrate and Potentilla acaulis in different restoring succession stages, which were determined by ELISA in the growing season in 2005. At the same time we recorded the phenological development and growing regulation of each kind of plant.

本文于2005年生长季，对处于不同恢复演替阶段的羊草、米氏冰草、大针茅、糙隐子草、草、黄囊苔草、双齿葱、冷蒿、木地肤和星毛委陵菜十种植物，运用酶联免疫吸附法，测定内源生长素、赤霉素(GA_3)、细胞分裂素和脱落酸含量的季节动态，同时记录每种植物的物候期和生长规律情况。

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。

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