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   细胞无性系 的翻译结果: 查询用时:0.551秒
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细胞无性系
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  cell clones
     The experiments showed that good callus growth was obtained on a medium containing both BA 4  ̄ 8mg/l and NAA 2~2.5mg/l. The pattern of callus glowth was found out and the good cell clones were selected.
     诱导产生了大量的愈伤组织.筛选出适于愈伤组织大量培养的固体培养基.以6BA4~8mg/l,NAA2~2.5mg/l为最佳激素种类和浓度.研究了固体培养条件下愈伤组织生长规律,绘制了生长曲线,并筛选出优良的细胞无性系
短句来源
     A Study on Diploidization of Haploid Embryogenic Cell Clones in Maize (Zea mays)
     玉米单倍体胚性细胞无性系二倍化的研究
短句来源
     Changes in the capacities for growth and differentiation of various haploid embryonic cell clones of maize after being subcultured for two years have been investigated.
     研究了继代培养二年后的玉米单倍性胚性细胞无性系生长和分化能力的变化。
短句来源
     Preliminary Study on the Relationship Between Disease Resistance of Corn Hyploid Embryonic Cell Clones to Helminthosporium turcicum, H. maydis and Perodixase Activity
     玉米单倍体胚性细胞无性系抗大、小斑病性与过氧化物酶活性关系的初步研究
短句来源
     Preliminary Study on Using Helminthosporium Carbonum Toxin to Select the Resistant Cell Clone from the Haploid Embryonic Corn Cell Clones
     用玉米圆斑病菌毒素筛选抗病单倍体胚性细胞无性系研究初报
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  “细胞无性系”译为未确定词的双语例句
     The genetic stability of the plantlets regeneration has been studied by counting the chromosomes and it was found that these plants were diploid mostly, while one of the clones and its regenerated plants all were tetraploid.
     通过染色体计数对于再生植株的遗传稳定性进行研究,发现多数细胞系的再生植株遗传稳定性较好,为二倍体再生植株,仅在一个细胞无性系当中发现所有再生植株均为四倍体,说明我们建立的体细胞胚它发生体系遗传稳定性好。
短句来源
     In vitro screening of seed-derived and microspore-derived callus lines was carried out by the biotechnology of plant cell culture, with the raw toxin extract of piricularia oryzae as stress factor.
     利用植物细胞培养离体筛选生物技术,以稻瘟病菌粗毒素提取液作为外源胁迫因素,对水稻种子体细胞和花粉性细胞无性系,进行愈伤组织细胞培养抗性筛选或花药培养抗性筛选。
短句来源
     Four patchs of fertile R1 generations were obtained from somaclones initiated from non-differentiated anther calli of a new cultivar of winter wheat-Shi 5144. The observation results in the field showed that the variation occured in 1 plant of R2 generation, and the variation frequency was 25%.
     从一株冬小麦H_1花粉试管苗基部,取未分化绿苗的胚性愈伤组织建立细胞无性系,从中获得4丛R_1结实株系,对其R_2进行田间观察,发现其中一株发生了变异,R_2的株系变异率为25.00%.
短句来源
     This paper reports radiant effect of 60Co-gamma rays on screening rice resistant mutants in vitro with seed-somato-derived and microspore -derived callus clone.
     本文报道~(60)Co-γ射线对水稻种子体细胞无性系和花粉性细胞无性系抗性突变体离体筛选的辐照效应。
短句来源
     More and more watermelon researchers begin to improve watermelon germplasm by biotechnology, such as meristem culture, protoplast culture, somatic hybridization, gene transformation and somaclonal variation.
     前人的研究大多通过西瓜茎尖培养、原生质体培养、体细胞杂交、基因导入和诱导体细胞无性系变异等生物技术途径来改良西瓜现有的品种或创造新种质,而且在西瓜作物上生物技术的应用途径也在不断拓宽。
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  相似匹配句对
     The phenotype of those cells was NKH1+ CD16-.
     _-的细胞
短句来源
     Cellular Spectro-Analysis
     细胞光谱分析
短句来源
     A Study on Diploidization of Haploid Embryogenic Cell Clones in Maize (Zea mays)
     玉米单倍体胚性细胞无性系二倍化的研究
短句来源
     Microscopic observation on somatic clones from immature wheat embryos and on their changes during subcultures
     小麦幼胚体细胞无性系及其继代过程的微观结构观察
短句来源
     Clonal Selection of Metasequoia glyptostroboides
     水杉的无性系选育
短句来源
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  cell clones
A new method of constructing a set of bacterial cell clones varying in the strength of a promoter upstream of the gene of interest was developed with the use of Escherichia coli MG1655 and lacZ as a reporter.
      
The time and causes of death of the parthenogenetic and androgenetic cell clones in chimeras are considered.
      
Different Influences of Genomic Imprinting on the Development of Parthenogenetic Cell Clones in C57BL/6 and CBA Mice
      
Clonal analysis of parthenogenetic chimeric mouse embryos C57BL/6(PG) ? BALB/c has shown that parthenogenetic cell clones C57BL/6 are present in the brain, liver, and kidneys of 14- and 18-day-old embryos.
      
The content of the parthenogenetic component (PG) in these organs on day 18 was lower than on day 14, and, in some 18-day-old embryos, parthenogenetic cell clones were absent from the liver and/or kidneys.
      
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  clones of somatic cell
To examine the mechanism that controls the Hh-1 phenotype, three independent clones of somatic cell hybrids between parental lines EL-4 (C57BL/6 origin, H-2b) and R1 (C58 origin, H-2k) were studied.
      


In anther culture of maize,we have obtained a pollen callus from an anther of Var.Batangbai.After subculturing several times,the callus continually gives rise to a lot of embryoids,some of them later grow into plantlets.This capacity of embryoids formation has been maintained by subcultures up to 24 times in two years.A cytological and histological study was carried out and the results revealed that on the whole the developmental process of embryoids is similar to that of zygotic embryos,but with the former...

In anther culture of maize,we have obtained a pollen callus from an anther of Var.Batangbai.After subculturing several times,the callus continually gives rise to a lot of embryoids,some of them later grow into plantlets.This capacity of embryoids formation has been maintained by subcultures up to 24 times in two years.A cytological and histological study was carried out and the results revealed that on the whole the developmental process of embryoids is similar to that of zygotic embryos,but with the former some have changed their morphological features,which would be related to the initiation and location of the embryogenic cells.The development of embryoids is not synchronous,therefore,the different stages of embryoids,from single embryogenic cells,2-8 cellular embryoids,multicellular ones to mature embryoids can be observed in the same callus.Thus it is shown that embryoids could be originated from single cells.The examination of the chromosome numbers of root tips of the plantlets indicates that the embryoids and callus may be haploidy so that the ploidy lever is relatively stable in vitro culture for such a long time that a haploid embryogenic clone of maize can be established.The clone will be useful for the research of theoretical and practical problems in the improvement of maize.

在玉米花药培养中,从八趟白花药中获得了花粉愈伤组织,在继代培养中能连续发生胚状体并分化成苗。经两年继代24次仍保持全能性。细胞学和组织学研究表明,胚状体的发生过程和合子胚相类似。胚状体发生不同步,因此在同一块愈伤组织上可以见到不同发育阶段的胚状体;从单细胞胚、2—8细胞胚、到多细胞胚和成熟胚。小植株根尖细胞染色体检查表明,绝大多数细胞为单倍性。在长期继代培养下倍性相对稳定。如能建立单倍性胚性细胞无性系,在玉米改良的理论和实践问题的研究中将是有用的。

The doubling method of haploid embryogenic cell clones in maize in subculture was investigated.The embryogenic cell mass was treated with sterile colchicine solution at the concentration of 0.05% for 48 hours.Two kinds of treatment,including continuous and interval were used.Diploidization cell clones have been obtained by proliferation of doubling diploid cell from generation to generation in long-term subcultures.The regenerated plan-tlets of diploidized cell clones are 90.5% diploid plantlets.The diploid...

The doubling method of haploid embryogenic cell clones in maize in subculture was investigated.The embryogenic cell mass was treated with sterile colchicine solution at the concentration of 0.05% for 48 hours.Two kinds of treatment,including continuous and interval were used.Diploidization cell clones have been obtained by proliferation of doubling diploid cell from generation to generation in long-term subcultures.The regenerated plan-tlets of diploidized cell clones are 90.5% diploid plantlets.The diploid embryogenic cell clones will be useful for the research of theoretical and practical problems.

本文研究了长期继代培养的玉米单倍性胚性细胞无性系的加倍方法。用无菌的0.05%秋水仙碱溶液进行间隙和连续处理胚性细胞团48小时,其结果可使二倍体细胞从原来的2.7%提高到50%左右。结合镜检采用不断分离挑选措施,淘汰单倍体细胞团,从而获得了二倍化的胚性细胞无性系。二倍化细胞系再生植株中90.5%是二倍体。

Changes in the capacities for growth and differentiation of various haploid embryonic cell clones of maize after being subcultured for two years have been investigated. Some cell lines which have passed through selection and sequence media still maintained their a capacity for haploid embryogenesis and plantlet regeneration for nearly four years, The regenerated plantlets survived after tran-splantation.

研究了继代培养二年后的玉米单倍性胚性细胞无性系生长和分化能力的变化。通过选择和序列培养基能够使一些细胞系保持稳定的单倍性胚胎发生和再生能力已近四年。其长期继代培养的再生单倍体植株已移栽成活。

 
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