查询词典 meristem

This implied that both genes were involved in bulbiliferous shoot meristem formation while ToPHAN also specified later stages of bulbil formation.

这暗示这些基因可能参与珠芽穗的形成，而ToPHAN 可能与晚期珠芽的形成有关。

The plant hormone cytokinin plays important roles in cell division and differentiation of floral meristem.

细胞分裂素对拟南芥花分生组织细胞的分裂和分化具有重要作用。

Histogen theory A theory, proposed by Hanstein, in which the apical meristem is considered to consist of three main zones, the dermatogen, periblem, and plerome, which differentiate into the epidermis, cortex, and stele respectively.

组织原学说：是由 Hanstein 提出的理论，认为顶端分生组织是由三个主要区域组成，表皮原、皮层原和中柱原，随后它们各自分化为表皮，皮层和中柱。

The latter observation also suggests that MOC1 promotes the outgrowth of tiller buds besides its promotive effect on axillary meristem initiation and tiller bud formation. MOC1 protein belongs to the GRAS transcription factor family, with two leucine heptad repeats, a VHIID domain, and an SH2-like domain.

MOC1基因的组织原位杂交实验表明，在腋生分生组织形成之前，MOC1基因就已经在叶腋里的少数表皮或亚表皮细胞里表达，并且MOC1基因的表达伴随着腋生分生组织形态建成的整个过程；在腋生分生组织分化形成分蘖芽以后，MOC1仍然在整个分蘖芽中表达。

All these results showed that RA68 may be a floral meristem identity gene in rice and function in the flowering transition.

这些结果表明RA68可能是水稻花分生组织特征基因，在成花转变过程中起作用。

In cotyledon, on one hand, very weak GUS staining was observed in PARF8:GUS, but very strong was found in phyA-209 PARF8:GUS. In the shoot apical meristem, hypocotyle and root tip, on the other hand, phyA-209 PARF8:GUS exhibited weaker GUS activity than PARF8:GUS. Interestedly the same expression patterns of ARF8 resulting from disruption of PhyA have been observed in dark, white-light and far-red-light conditions.

结果表明，无论在黑暗、白光和远红光条件下，PhyA突变均明显提高幼苗子叶和叶片中ARF8的表达水平，但明显降低幼苗下胚轴、茎尖和根尖中的表达水平。

At the reproductive stage, RA68 was expressed in the inflorescence meristem, the tip of rachis branch, spikelet primordia, macrospore sac and pollen grains.

原位杂交分析结果表明：在幼苗期RA68主要在幼芽胚芽鞘的内外层细胞和幼叶原基的表层细胞中表达；转入生殖生长期后，在花序分生组织、枝梗原基顶端、花器官原基、大孢子囊和花粉粒中表达。

The rate of virus free seedlings reaches 20 %, which is obtained by means of meristem tip culture.

文中还对DASELISA技术在马铃薯病毒检测中的优势进行了评价。

These genes exact expression is activated by flower meristem identity genes and controlled by various positive and negative regulators.

这些基因的精确表达需要花分生组织特异性基因的激活和多个正负调节因子的调控。

Meristem activities are regulated by a network of environmental information, developmental stage and genetic makeup of the plant.

顶端优势是植物分枝调控的核心问题，而生长素对顶端优势的形成和维持发挥关键作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐