核糖体

The phytoplasmas diseases were investigated in 30 counties and cities of 10 areas in Yunnan Province. There are 12 phytoplasma diseases, including paulownia witches-broom,chinaberry witches-broom, cactus witches-broom, christmas cactus witches-broom, orange little leaf, petunia flat stem and so on were indentified using PCR with universal primers, which amplified phytoplasma 16SrRNA gene and/or ribosomal protein genes. So the kind of phytoplasma diseases in Yunnnan Province were understood. Identified the characteristic of 16SrRNA and rp gene of phytoplasma and the kind, classification and genitic relativity of these strains using RFLP, clonging and sequence analysis (nearly 20 full-length sequences of phytoplasma 16SrRNA and/or rp gene were submitted in GenBank ); The phytoplasma strains isolated from herbage plants were conserved in storeroom. 9 articles were published in the key journals of China and 1 technique invention patent was applied. The net-page about phytoplasma disease was established. 4 graduate student were bringed up.

对云南省10个地区的30余个县市地区进行了植原体病害的调查采集工作；采用植原体16SrRNA基因通用引物（R16mF2/R16mR1及R16F2/R16R2）和/或植原体核糖体蛋白基因引物（rpF1/R1）对所采集到的病害标样总DNA进行PCR扩增，根据植原体特异扩增条带的出现，共鉴定出泡桐丛枝、苦楝丛枝、仙人掌丛枝、蟹爪兰丛枝、柑桔小叶、矮牵牛扁茎等12种植原体病害，初步明确了云南省植原体病害的种类；通过RFLP技术、克隆及测序技术获得其16SrRNA及部分核糖体蛋白基因的近全长序列（已在GenBank中共登录近20余个相关序列），通过序列比较分析，明确了上述植原体株系中这两个基因的特征并确定了云南省植原体株系的种类、分类地位及遗传相关性；对一些发生在草本植物上的植原体进行了株系保存；在国内核心期刊及一般期刊发表研究论文 9 篇，申请技术发明专利1项；初步建立了有关植原体病害的网页；培养研究生4名。

A single ribosome,especially one that is combined with a molecule of messenger rna .

单核糖体单核糖体，尤指与信使核糖核酸的一个分子相结合的单核糖体

Basic types and components of ribosome; the structure of ribosome; the functions of ribosome protein and rRNA.

核糖体的基本类型与成分；核糖体的结构；核糖体蛋白质与rRNA的功能

Our latest results confirm that the ribosomal RNA is really the key to ribosome function.

我们最近的研究确认核糖体中的核糖核酸在核糖体的功能发挥方面起着关键性作用。

Ribosome affect the protein synthesis, we could understand the situation of protein synthesis using this method.

核糖体核蛋白影响着蛋白质的合成，通过对小鼠肝细胞核糖体蛋白含量的测定可以了解核糖体参与蛋白合成的情况。

In order to better understand their phylogenetic relationship and identify the uncertain species, the sequences of the small subunit ribosomal RNA (ssurRNA, 16 S rRNA) genes of nine microsporidia infectious to the silkworm, Bombyx mori, were determined.

微孢子虫是真核生物，但其核糖体及核糖体RNA为原核生物型。为探讨9种家蚕病原性微孢子虫的种属地位及亲缘关系，对已广泛用於生物进化分类的核糖体小亚单位RNA基因进行了研究。

The mature egg cell was an inactive cell with only a few polysomes. At the early zygote stage, a large number of ribosomal precursors were produced by the nucleolus, and many polysomes appeared in the cytoplasm, which suggests a high level of metabolism. Zygote at the dormancy stage had a small nucleolus and marked decrease in ribosomes, as shown by a few polysomes, which suggests decreased metabolism. Zygotes in the prophase of mitosis and two-celled proembryo became active again in metabolism, for a prominent nucleolus, high density of ribosomes and increased number of polysomes in the cytoplasm.

结果如下：在成熟卵细胞中多聚核糖体数量不多，且细胞代谢活性较弱；初期合子内，核仁大量合成核糖体前体物质，胞质中多聚核糖体数目众多，细胞代谢活性较强；休眠期合子的核仁变小，胞质中核糖体数量急剧减少，仅有少量多聚核糖体，细胞代谢活性较弱；合子分裂前期和二细胞原胚期，核仁显著，胞质中核糖体的密度增加，出现大量多聚核糖体，细胞代谢活性较强。

Whether they are more closely related to the eukaryotes than to bacteria is hotly debated.

它们核糖体的形状和结构和真核生物的核糖体类似程度高于和细菌核糖体的类似程度。

A small, typically round, granular body composed of protein and RNA in the nucleus of a cell, usually associated with a specific chromosomal site and involved in ribosomal RNA synthesis and the formation of ribosomes.

核仁小而常为圆形的颗粒体，由蛋白质和细胞核中的核糖核酸构成，通常与一特定染色体缔合有直接关系并涉及核糖体核糖核酸的合成和核糖体的形成

In most species they are composed of roughly equal amounts of protein and ribosomal RNA , the ribosome consists of two unequally sized rounded subunits arranged on top of each other like a cottage loaf, eukaryotic cells have larger ribosomes than prokaryotic cells but the ribosomes in mitochondria and chloroplasts are about the same size as prokaryotic ribosomes.

在大多数的物种中，蛋白质的量和 rRNA 量是大体相等的。核糖体包括两个大小不同的亚单位，上部结合形成小屋状结构。真核生物细胞中的核糖体要比原核细胞的核糖体大，但是线粒体和叶绿体中的核糖体与原核细胞的核糖体大小相当。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。