查询词典 meristems

Receptor system of transformation have developed from meristems to callus receptor ; and the gene transformation methods have made some progress.

香蕉转化受体系统已从茎尖发展到胚状体和愈伤组织受体系统，遗传转化方法也在不断改进，从单一的方法发展为根癌农杆菌感染法与基因枪法的结合。

Unable to maintain root meristems. Our data showed that the defects in the mutant were related to the shift of the free histidine content in mutant plant.

虽然hpa1并没有显示出十分严重的组氨酸饥饿特征，但是在根的发育上表现出明显的缺陷，根部分生组织遭受严重破坏。

Plants modulate their shoot architecture by regulating activities of the shoot apical meristem and axillary meristems.

高等植物通过调节顶端分生组织和侧生分生组织的活性建立地上株型系统，分生组织的活性受环境信号、发育阶段和遗传因素的综合调控，植物激素参与这些信号的整合。

Cells in branch meristems of maize.

在17万株MU插入玉米中找到5个突变体，最终克隆了玉米的恢复基因Rf2

And GmAG was observed a little at reversed shoot tips, which indicated GmAG had a characteristic of transition from shoot apical termination to floral meristems.

受长日照影响的茎顶，在发生逆转的顶芽上有少量的GmAG的表达，证明GmAG有决定分生组织向花分生组织转变的特性。

Orchid can be rapidly propagated by in vitro organogenesis or embryogenesis of orchid meristems.

兰科植物可藉由组织培养分生方式快速繁殖出与母本形质完全一样的苗株。

In order to lower the difficullties of peeling shoot tips and to set up a rapid propagation techniques of good quality S.grosvenorii seedling ,we carried out the experiment in two ways:(1)peeling the shoot tips after heat thrapy at 38.5℃ for 7 days ,10 days ,15 days. Plants derived from 0.2~0.5mm heat treated (38.5℃;10 days )meristems were 100% free from disease.

为降低剥茎尖难度和大规模生产罗汉果优良种苗，本试验探讨了：（1）在38.5℃条件下对罗汉果试管苗热处理7天、10天、15天，然后剥取0.2~0.5mm、0.6~1.0mm和1.5~2.0mm的茎尖进行培养，结果表明，热处理10天，剥取0.2~0.5mm的茎尖进行培养，可获100%的脱毒苗。

The effect of phosphoric amide herbicide amiprophose-methyl, which was used wildly in agriculture, on chromosome structure and protein composition of root meristems of wheat were studied by exposure to concentrations of 1-4 μmol/L. The results indicated that, as the concentration of APM increased the frequency of chromosomal structure variation increased.

利用农业上广泛使用的酰胺类除草剂甲基胺草磷，在1~4μmol/L浓度下，对野二燕1号小麦根尖分生组织细胞染色体结构变异及蛋白质组分变化进行了研究，结果发现，随着浓度升高，染色体结构变异率呈上升趋势。

Frequencies of multipolar division cells and bridges lagging chromosome were 0.08% and 0.434% respectively when root meristems were treated with 3-4 μmol/L APM.

在3~4μmol/L浓度下处理的根尖分生组织细胞中，多极分裂细胞的出现频率为0.08%；染色体桥、断片和滞后染色体的出现频率为0.434%。

Northern-blot analysis demonstrated that the two rice NAP1-like genes are predominantly expressed in stem tissues such as root and shoot apical meristems as well as in young flowers.

我们通过筛选单子叶植物水稻和双子叶植物烟草的cDNA文库，获得了6个NAP1类似蛋白（NAP1 like protein，NAP1_LP）的cDNA，其中水稻的两个NAP1类似蛋白分别命名为OsNAP1_L1和OsNAP1_L2，烟草的4个类似蛋白分别命名为NtNAP1_L1、NtNAP1_L2、NtNAP1_L3和NtNAP1_L4。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。