- 更多网络例句与体细胞相关的网络例句 [注:此内容来源于网络,仅供参考]
-
In order to study the relation of cytochrome P-450 with the protective action of SY-801 and SY-640 against 〓-induced UDS and 3H-BP binding to nuclear DNA, the effects of SY-801 and SY-640 on liver microsomal cytochrome P-450 were studied in mice. The results indicated that the liver microsomal cytochrome P-450 concentration and aminopyrine demethylase activity were significantly increased in mice pretreated with SY-801 150mg/kg or SY-640 150 mg/kg once daily for three days.
本实验进而观察了SY-801对小鼠肝微粒体细胞色素P-450酶系的影响,结果表明SY-801和SY-640体内连续给药3天,可诱导小鼠肝微粒体细胞色素P-450含量明显增加,同时氨基比林脱甲基酶活性亦明显增加;给药1次2小时内二者均可抑制氨基比林脱甲基酶活性,而对肝微粒体细胞色素P-450含量则无明显影响。
-
B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.
体细胞胚胎发生研究的结果表明:(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料;(2)在所试验到的MS、MS1/2(将MS的所有成分均减半)、WPM、DKW、B〓、SH等六种基本培养基中,MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基;(3)水曲柳的体细胞胚胎发生以直接发生为主,体细胞胚主要来自于从合子胚分离的完整子叶;(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响,诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2,5,10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0,2mg/L+TDZ 0.05mg/L;(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力,少数愈伤组织可以分化出体细胞胚;(6)愈伤组织的诱导也受培养基和激素配比的显著影响,最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2,5mg/L+TDZ0.05mg/L;(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力,此时种子尚未成熟,胚乳已呈固态,种胚的各个部分已分化完全,种胚体积占胚腔的大约2/3;(8)在各自综合的最适条件下,完整子叶的体细胞胚诱导率可达33.68%,下胚轴的愈伤组织诱导率可达90.7%。
-
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 were showed that embryogenic calli were induced from young leaves, which were cultured on MS medium supplemented with 2,4-D 2mg/L and KT 0.2mg/L. For the proliferation of embryogenic calli, the suitable culture medium was MS+BA 8mg/L +NAA 1mg/L. The development and maturation of somatic embryo could be much improved by using the medium of MS+ZT 2mg/L or BA 5mg/L +IAA 0.2mg/L. For the induction of secondary somatic embryo from integral somatic embryo, the suitable culture medium was MS+KT 0.1mg/L+NAA 0.01 mg/L or MS+ZT 0.1mg/L+NAA 0.01 mg/L, the proliferation frequency is 214%, 256% respectively. The cotyledonary generated from somatic embryos of Aesculus hippocastanum L.
本文就欧洲七叶树的组织培养和体细胞胚发生以及植株再生进行了系统研究,主要结果如下:以植物细胞具有全能性的理论为依据,以欧洲七叶树幼嫩叶片为外植体,进行体细胞胚胎发生研究,研究结果表明,诱导愈伤组织的适宜培养基是MS+2,4-D 2mg/L+KT0.2mg/L,MS+BA 8mg/L+NAA 1mg/L有利于胚性愈伤组织的诱导和增殖,添加ZT 2mg/L或BA 5mg/L和IAA 0.2mg/L的MS培养基有利于体细胞胚发育和成熟,体细胞胚可直接诱导次生胚发生,MS+KT 0.1mg/L+NAA 0.01 mg/L或MS+ZT 0.1mg/L+NAA 0.01 mg/L培养基诱导效果最好,增殖频率分别为214%、256%。
-
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. principis-rupprechtii was used as the tester and the cDNA from its subcultured callus was used as the driver. Eight hundreds randomly 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。
-
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。
-
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。
-
It was studied that the process of the somaticembryogenesis and analyzed that the problem existing in technique of in vitro morphogeny in Hevea to ground for that to probe into the method to improve the technology of tissue culture in Hevea with the techniques of transgene and to improve the ability of somatic embryogenesis and plant percentage of embryoid in Hevea.
本试验以巴西橡胶树,海垦2的花药为外植体,诱导体胚的发生,对体细胞胚发生方式及发育过程做了一系列的组织学观察,分析了橡胶树体细胞胚发生的各个过程以及畸形胚的形成原因,初步结果如下: 1 橡胶花药体细胞胚主要以间接方式发生。
-
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。
-
On November 14th Nature, one of the world's leading scientific journals, published a paper about the creation of embryonic stem cells using a technique called somatic-cell nuclear transfer (basically, taking the nucleus from a body cell and putting it in an unfertilised egg).
世界前沿科学期刊《自然》于其11月14日的杂志上刊登了一篇关于如何通过体细胞核移植制造胚胎干细胞的论文(简单的说,体细胞核移植就是从体细胞提取细胞核后放入未受精卵中的过程)。
- 更多网络解释与体细胞相关的网络解释 [注:此内容来源于网络,仅供参考]
-
somatic apospory:体细胞无配子生殖
somatic apogamy 体细胞无配子生殖 | somatic apospory 体细胞无配子生殖 | somatic area 躯体功能代表区
-
somatic embryogenesis:体细胞胚发生
somatic cell cloning 体细胞克隆 | somatic embryogenesis 体细胞胚发生 | somatic embryo 体细胞胚
-
somatic pairing:体细胞配对,体细胞染色体配对
somatic number 体细胞数 | somatic pairing 体细胞配对,体细胞染色体配对 | somatic parthenogenesis 体细胞孤雌生殖
-
rods:杆体细胞
黑暗中时,有1.2亿个杆体细胞(rods)在活动. 杆体细胞有700万个锥体细胞(cones)对白天的颜色和光线起作用. 暗适应(dark adaptation)过程--从光亮处到光暗处眼睛感受性逐渐提高的过程. 中央凹(fovea),只有锥体细胞,没有杆体细胞.
-
somatic mutation:体细胞突变
3.体细胞突变(somatic mutation)体细胞在发育过程中可发生基因突变. 以长期体外培养的B细胞前体为例,每个细胞每个碱基对的突变率约为1~43×10-5,这种点突变主要发生在V基因. 体细胞突变扩展了原有胚系众多基因片段重排的多样性.
-
somatoplasm:体细胞原生质, 体细胞浆
winter green oil 冬青油(水杨酸甲酯的俗称) | somatoplasm 体细胞原生质, 体细胞浆 | cholangitis 胆管炎, 胆道炎
-
somatic synapsis:体细胞[染色体]联会
体细胞[染色体]交换|somatic crossing over | 体细胞[染色体]联会|somatic synapsis | 体细胞[染色体]配对|somatic pairing
-
somatic cell genetics:体细胞遗传学
体细胞遗传学(somatic cell genetics)是以体外培养的高等动植物和人的体细胞为主要研究对象的遗传学分支学科,体细胞遗传学以高等生物的体细胞为实验材料,采用细胞离体培养、细胞融合和遗传物质在细胞间转移等方法,研究真核细胞的基因结构功能及其表达规律等,
-
somatic cell hybrid:体细胞杂仲
somatic cell genetics 体细胞遗传学 | somatic cell hybrid 体细胞杂仲 | somatic crossing over 体细胞交叉
-
somatic cell culture:体细胞培养
somatic cell 体细胞 | somatic cell culture 体细胞培养 | somatic cell division 体细胞分裂