子叶

The conserved regions of rRNA and tRNA genes exhibited higher sequence similarity among plant species. Five primer pairs were designed from the conserved regions distributing in psbA~trnK, psbB~psbH, rpl23~trnI, trnR-ACG~trnN-GUU and trnY-GUA~trnD-GUC, respectively to amplify sequences about 500~600 bp, 800~900 bp, 650~700 bp (350 bp, not legume species), 700~800 bp (400 bp in dicotyledon), and 500~600 bp.

经由上述比对分析后设计出5引子对，位於叶绿体基因体的位置分别为psbA~trnK、psbB~psbH、rpl23~trnI、trnR-ACG~trnN-GUU及trnY-GUA~ trnD-GUC，预期实际应用在其他物种上所能增幅之变异序列长度分别约为500~600 bp、800~900 bp、650~700 bp (豆科以外物种为350 bp)、700~800 bp (双子叶植物为400 bp)及500~600 bp。

This research used genetic engineering techniques to insert hsf8 gene to dicotyledon expression vector pCAMBIA3300 that contains the selection marker gene bar. And pCAMBIA 3300-HSF8 has been transfered into new soybean lines Hajiao5337 and Hajiao5489 by A grobacterium tumefaciens.

本文将热激转录因子8(hsf8)基因构建在植物表达载体pCAMBIA3300电以大豆子叶节作为受体，通过农杆菌介导法将hsf8基因导入品质性状优良的两个高产大豆新品系哈交5337和哈交5489中，最后获得转基因植株。

General description: Fast growing deciduous hard woody tree; does not stand up well to wind; medium-sized; dicotyledon; angiosperm; with umbrella-shaped crown and drooping branches; up to 6-12 m tall; prefers sunny and sheltered position.

概述： 生长迅速的硬木质落叶乔木树。抗风力弱。中等大小，双子叶植物，属被子植物门。有伞形树冠及下垂之枝条。高6至12米。适宜在向阳光及不当风的地点生长。

Vector pDLBRBNPT contained plant selective marker gene nptⅡ and vector pCDMAR-Hyg contained plant selective marker hygramycin phosphotransferase gene , they fitted to dicotyledon and monocotyledon transformation respectively.

载体pDLBRBNPT含有植物选择标记基因nptⅡ，适合双子叶植物转化；而载体pCDMAR-Hyg的植物选择标记潮霉素磷酸转移酶(Hygramycinphosphotransferase，Hyg)分离，主要用于单子叶植物转化。

Genus of more or less advanced dicotyledonous herbs and some trees and shrubs.

程度或高或低的高级双子叶草本植物和一些乔木及灌木的属。

The reticulate pattern of minor veins is characteristic of most dicotyledonous plants.

细脉的网状式样是双子叶植物的主要特征。

A dicotyledonous family of the order Primulales with a regular flower; widely distributed in the northern hemisphere.

樱草花属的双子叶植物科带有整齐的花；广泛分布在北半球。

The methods disclosed herein can be used with a variety of host cells, including for example, dicotyledonous and monocotyledonous plant cells.

这里所公开的方法可以与各种宿主细胞，包括例如双子叶和单子叶植物细胞一起使用。

Only dicotyledonous flowering woody plants and most gymnosperms have true twigs; monocotyledons and tree ferns do not.

只有双子叶的木本开花植物和大部分的裸子植物才有真正的小枝，而单子叶植物和树蕨类植物则没有。

An order of dicotyledonous plants.

双子叶植物的一个目。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。