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配子体细胞
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  “配子体细胞”译为未确定词的双语例句
     Photolithotrophic Cultivation of Laminaria Japonica Gametophyte Cells in Bioreactor
     生物反应器光能无机营养培养海带配子体细胞(英文)
短句来源
     2) Promoter SV40 could drive stable expression of bar (BASTA(?) resistance gene) gene in kelpgametophytes. 3) By controlling the fluorescent backgrounds, transient egfp gene expression was observed inkelp gametophytes for the first time.
     2)利用室内光生物反应器营养增殖海带配子体技术,经草丁膦筛选,实现了SV40启动子驱动草丁膦抗性基因bar在配子体细胞中的稳定表达。
短句来源
     The results of RAPD, ISSR and AFLP forthe cell lines of Lam maria sp. gametophytes indicated that:1) RAPD marker is valid for identifying Lam maria sp. gametophytes.
     采用RAPD,ISSR和AFLP三种DNA分子标记技术对海带配子体细胞系进行了种质鉴定和评价,结果表明:
短句来源
     Its DNA fingerprints, constructed with three primers OPC2O, OPD2O andOPD 15, can be used not only for identifying the 23 cell lines of Laminariasp. , but also for distinguishing male and female gametophyte within onecell line.
     1)RAPD方法可以有效地应用于海带配子体细胞系的鉴定,用三个RAPD引物(OPC20,OPD20和OPD15)构建的DNA指纹图谱,不仅能将23个海带配子体细胞系区分开,而且能将每种海带的雌、雄配子体区分开。
短句来源
     3) AFLP data showed high polymorphism on genetic characters forthe Laminaria sp. gametophyte, and it may be available to the gene linkageanalysis with specific character.
     3)AFLP分子标记结果表明,海带配子体细胞系具有高的多态性,这对海带具体性状进行连锁标记分析,可能是有效的方法。
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  相似匹配句对
     The pilot study of adhesion gametophyte clonal cell in Laminaria
     海带配子体克隆细胞附着的初步研究
短句来源
     Photolithotrophic Cultivation of Laminaria Japonica Gametophyte Cells in Bioreactor
     生物反应器光能无机营养培养海带配子体细胞(英文)
短句来源
     ALBUMINOUS CELLS
     蛋白细胞
短句来源
     The phenotype of those cells was NKH1+ CD16-.
     _-的细胞
短句来源
     DEVELOPMENT OF GAMETOPHYTES IN FOKIENIA(CUPRESSACEAE)
     福建柏的配子体发育
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  gametophytic cell
In angiosperm pollen, the vegetative cell is assumed to function as a gametophytic cell in pollen germination and growth of the pollen tube.
      
The generative cell produces two sperm cells, or male gametes, whereas the vegetative cell produces an elongated pollen tube, a gametophytic cell, to deliver the male gametes to the embryo sac.
      
Finally, mutations affecting meiotic or gametophytic cell divisions suggest that mechanistically different modes of cytokinesis occur in higher plants.
      


The effects of a very high dose (120,000) of Co 60r-rays on the female and male gametophytes of Laminaria were studied.The following preliminary observations were made;1)The lethal effect of the high dose only became apparent in the next day after irradiation.2)Multi-celled female gametophytes were more radioresistant than single-celled ones.3)Multi-celled male gametophytes were more radiosensitive than the female ones.4)The development of the irradiated gametophytes were severely hindered,and only a few sporophytes...

The effects of a very high dose (120,000) of Co 60r-rays on the female and male gametophytes of Laminaria were studied.The following preliminary observations were made;1)The lethal effect of the high dose only became apparent in the next day after irradiation.2)Multi-celled female gametophytes were more radioresistant than single-celled ones.3)Multi-celled male gametophytes were more radiosensitive than the female ones.4)The development of the irradiated gametophytes were severely hindered,and only a few sporophytes were formed,which died gradually.

本实验观察了大剂量Co~(60)γ射线对海带多细胞雌、雄配子体的致死影响。 从实验的观察和对实验所得的材料分析,可以得出以下几点初步结论: (1)12万伦的Co~(60)γ射线没有立即引起配子体在射线下死亡,而仅仅少数个体的个别细胞,色素体开始有微小的变化。受照射各组配子体的死亡均发生在照射后第2天。 (2)海带多细胞雌配子体对辐射的抗性,要比海带单细胞雌配子体强。因为单细胞雌配子体在30天里的致死X射线剂量是6,000伦左右,但是12万伦的Co~(60)γ射线却不能在30天里使多细胞配子体全部死亡。 (3)海带雄配子体要比多细胞雌配子体对辐射敏感。因为受12万伦Co~(60)γ射线照射,在照射后经过12天,雄配子体已经全部死亡,但雌配子体却仅死亡60%。雄配子体对辐射的敏感性大于雌配子体。 (4)受大剂量γ射线照射后的海带配子体,不仅仅引起许多配子体的死亡,而且还严重地影响配子体的进一步发育。这表现在:受照射各组合子和孢子体的形成很少;孢子体细胞分裂不规则等等。并且大多数的合子和几乎全部的幼孢子体均相继发生死亡。 (5)受照射组的配子体细胞、合子和幼孢子体细胞的死亡过程相似。

Plant experimental reproductive biology as a new stage of experimental embryology is characterized by new manipulation level as well as multidiseiplinal studies. Manipulation of pollen protoplasts, generative cells, sperms, embryo sacs and egg cells, in vitro intergametie fusion and gameto-somatie fusion are of main interest in current subjects. Based on the integration of experimental reproductive biology and gene engineering, a new field in biotechnology, namelthe reproductive cell engineering, shows broad...

Plant experimental reproductive biology as a new stage of experimental embryology is characterized by new manipulation level as well as multidiseiplinal studies. Manipulation of pollen protoplasts, generative cells, sperms, embryo sacs and egg cells, in vitro intergametie fusion and gameto-somatie fusion are of main interest in current subjects. Based on the integration of experimental reproductive biology and gene engineering, a new field in biotechnology, namelthe reproductive cell engineering, shows broad prospects. The significance and contents of this field are outlined.

植物实验生殖生物学是植物实验胚胎学发展的新阶段,其主要特征为操作技术水平的提高与多学科综合性研究的加强。花粉原生质体、生殖细胞、精子,胚囊、卵细胞的操作、雌雄配子体外融合、配子-体细胞杂交等,代表了当前的主要研究趋势。实验生殖生物学与基因工程相结合,开辟了植物生殖工程新技术领域的前景。对生殖工程的意义与内容提出了轮廓设想。

The starch variation of normal and abnormal embryo systems during the embryonic selection in Cunninghamia lanceolata is carried out in the normal seeds,starch grains are always present in the active growth areas and their adjacent cells. There are two cases in the formation of the abnormal seeds:1. The abortion of the embryos. No starch grains exist in the embryos and suspensor cells. In the female gametophytes, starch grains are present or absent. 2. The abortion of the female gametophytes. At the beginning...

The starch variation of normal and abnormal embryo systems during the embryonic selection in Cunninghamia lanceolata is carried out in the normal seeds,starch grains are always present in the active growth areas and their adjacent cells. There are two cases in the formation of the abnormal seeds:1. The abortion of the embryos. No starch grains exist in the embryos and suspensor cells. In the female gametophytes, starch grains are present or absent. 2. The abortion of the female gametophytes. At the beginning the embryo systems are well-developed and the distribution of starch frains is the same as that of the normal embryos-a layer of starch grains are accumulated in the cells of the female gametophyte around the embryos and the outer cells crinkle towards the centre while the crinkled areas enlarge starch grains diminish. At last,the female gametophytes die and embryos systems degenerate.The former case could be the result of the inbreeding depressions, the latter case maybe the reason that causes the formation of the aborted seeds.

研究了杉木幼胚发育过程中正常胚和败育胚的淀粉动态,分析了胚败育的原因。在发育正常的种子中,淀粉粒主要分布于胚体及其周围细胞中。在发育不正常的种子中,存在两种情况:1.胚自身的败育:在胚及胚柄系统中无淀粉颗粒分布,雌配子体中有或没有淀粉粒存在;2.雌配子体的败育:最初,胚系统发育正常,淀粉粒的分布与正常胚中一样:雌配子体中存在淀粉层;随着雌配子体细胞从边缘向中心萎缩区域的不断扩大,淀粉区消失,雌配子体死亡,最终导致胚的败育。前一种情况可能起因子自交衰退;后一种情况则可能是导致杉木涩粒形成的胚胎学原因。

 
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