查询词典 somatic cell

There are two disputing theories about the origin of cancer, that is, cancer arises from dedifferentiation of somatic cells or maturation of stem cells. Recent discoveries demonstrate that cancer cell proliferation is driven by cancer stem cells.

肿瘤的起源，即肿瘤的去分化起源和肿瘤的干细胞起源一直是有争议的，而随着干细胞研究的深入，越来越多的实验结果证实肿瘤起源于干细胞的观点。

Recently generated ESC-like pluripotent cells by reprogramming somatic cells, named induced pluripotent stem cells, open a new gate for cell transplantation-based regenerative medicine.

经体细胞重编程产生的诱导多能干细胞(induced pluripotent stem cells， iPS)也被证明有类似胚胎干细胞的特性。

Parrott W A%WILLIAM E G%HILDEBRAND D F Effect of genotype on somatic embryogenesis from immature cotyledons of soybean Plant Cell Reports , 1989,null

李步勋%程智慧大蒜体细胞胚胎发生诱导因素研究西北农林科技大学学报， 2002，5

The medium of 1/2MS+ 0.4mg/L NAA +0,2mg/L IBA was used for rooting, and the rooting rate was 75%. The origin and development of somatic embryos was observed by histological method. It was found that the somatic embryos of Aesculus hippocastanum L were developed from single cell.

通过组织细胞学方法研究体细胞胚的起源与发生部位，发现欧洲七叶树体细胞胚为单细胞起源，外植体的表面及内部都可以发生体细胞胚。

The results indicated, somatic embryos of Lycium barbarum L. mostly came from single embryogenic cell. Finaly, embryogenic cell grew into plant after bicellular, tricellular and multicellular stage.

结果发现，枸杞的体细胞胚是单细胞起源，经胚性细胞，二、三、四和多细胞原胚，到球形胚，最后发育成完整植物。

Experiment results showed that the somatic embryo directly developed from single embyrogentic cell or cell aggregate under the surface of embryogenetic callus.

结果表明：油荼体细胞胚可直接的起源於表皮或近表皮的单细胞胚原胚或者多细胞团。

To study the molecular mechanism of Larix somatic embryogenesis, a differentially expressed cDNA library of Larix somatic embryo in the period of maturation was constructed using suppression subtractive hybridization. The cDNA from the cultures at the stage of somatic embryo maturation of embryogenic cell line Y35 of L. leptolepis × L . princi-pis-rupprechtii was used as the tester and the cDNA from its subcultured callus was used as the driver. Eight hundreds ran-domly selected positive clones were sequenced, and 468 UniGenes were obtained finally.

为研究落叶松体细胞胚胎发生的分子机理，文章以日本落叶松×华北落叶松杂种无性系胚性细胞系Y35体细胞胚成熟阶段培养物的cDNA为实验组，继代培养阶段胚性愈伤组织的cDNA为对照组，利用抑制性消减杂交技术(Suppression subtractive hybridization， SSH)构建了体细胞胚成熟阶段的差异表达基因文库。

Based on the results of information investigation, the paper briefly summarizes the research and application of cell engineering technology in agriculture: Chromosome engineering,protoplast culture,anther culture, cell culture, tissue culture and somatic hybridization. The worldwide development and progress in the application of cell engineering in plant breeding are reviewed.

根据文献研究结果，系统地综述了染色体工程技术、原生质体培养、花药培养、细胞培养与无性系筛选、组织培养与体系胞杂交等细胞工程技术，在国内外农作物育种上开发应用后所取得的新进展、新成果，以及这些新成果的产业化，对促进中国农业生产的发展所起的作用。

The course mainly introduces basic principles and methods of experimental techniques of cell engineering, which includesmedia preparation, sterilization and aseptic technique, virus-free seedling production, plant rapid propagation, immature embryo culture, pollen and anther culture, cell culture, protoplast culture, somatic hybridization, plant transformation, and so on. The contents of this course follow the from easy

该课程主要介绍细胞工程特别是植物细胞工程的基本实验技术及其原理与方法，包括：培养基配制、灭菌及无菌操作技术、无病毒苗培育、植物快速繁殖、幼胚培养、花药及花粉培养、细胞培养、原生质体培养、体细胞杂交及植物遗传转化等。

Cell wall-related protein genes,adenine and amino acid metabolism-related genes and CKⅡgenes were behaved high expression level during the development and mature of somatic embryos.The high expression level of the post-translation modification genes,such as SERK gene,was considered as a sign that proteins interacted complexly.It was proved that the development and maturity of somatic embryos was complex as the start-up and morphogenesis of somatic embryos.

体细胞胚胎发育与成熟要求较高水平的细胞壁相关蛋白基因、腺嘌呤与氨基酸代谢相关基因与CKⅡ基因；以SERK为代表的翻译后修饰基因在体细胞胚发育阶段的高表达被认为是复杂的蛋白质相互作用的标志，证明了体细胞胚的发育和成熟与起始发生和形态建成一样是相当复杂的。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。