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   大熊猫精子 在 生物学 分类中 的翻译结果: 查询用时:0.576秒
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大熊猫精子
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  giant panda sperm
    CHANGES OF CALCIUM DISTRIBUTION DURING CAPACITATION AND ACROSOME REACTION OF THE GIANT PANDA SPERM
    大熊猫精子获能和顶体反应过程中钙分布变化规律的研究
短句来源
    The golden hamster eggs could be fertilized by giant panda sperm capacitated in vitro. The second polar body was released after spermpenetration and the ooplasm of such fertilized egg was found to be able to induce pronucleus formation.
    在大熊猫精子与地鼠卵的体外异种受精中,发现大熊猫精子穿入地鼠卵后可以激活受精卵产生极区,释放第二极体,受精卵内雌性原核形成。
短句来源
  giant panda spermatozoa
    The Effects of ANP on Porcine Oocyte Maturation, Fertilization and Giant Panda Spermatozoa Function
    心钠肽对猪卵母细胞成熟、受精和大熊猫精子功能的影响
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  “大熊猫精子”译为未确定词的双语例句
    CRYOPRESERVATION OF THE SPERMATOZOA OF THE GIANT PANDA (AULUROPODA MELANOLEUSA)
    中国大熊猫精子深低温冻存的研究
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The semen specimens from three Giant Pandas were cryopreserved successfully and reversibly at -196℃ for the breeding purpose and for the study of cryobiology. Glycerol, DMSO and yolk were used as the cryoprotectant. The spermatozoa were cooled and frozen by means of the Programm Cell Freezer (Planer R-204, England), PFE plate and freezing vials. The programmed freezing rates at 95°—105℃/min with compensation for latent heat of fusion and warming at 38°—40℃/min and the low glycerol/rapid cooling freezing PFE...

The semen specimens from three Giant Pandas were cryopreserved successfully and reversibly at -196℃ for the breeding purpose and for the study of cryobiology. Glycerol, DMSO and yolk were used as the cryoprotectant. The spermatozoa were cooled and frozen by means of the Programm Cell Freezer (Planer R-204, England), PFE plate and freezing vials. The programmed freezing rates at 95°—105℃/min with compensation for latent heat of fusion and warming at 38°—40℃/min and the low glycerol/rapid cooling freezing PFE technique proved to be superior to the other methods. Recoveries obtained with this type of technique are generally in the range of 89—95%. Many factors, which influence recovery and mobility of the sperms, such as pretreatment, cryoprotective agents, freezing and thawing rates were studied and discussed in this paper.

从三支雄性大熊猫多次取精液,应用甘油蛋黄冷冻保护液4℃下平衡1.5~2.5小时,电子计算机程控降温仪和聚四氟乙烯板快速冷冻法成功地保存大熊猫精子,解冻后成活率可达89~95.1%,精子活动度至49~56%,为保存和繁衍世界珍稀动物大熊猫创造条件。降温前的平衡、保护剂的种类、浓度、降温速率、方式、分装以及复温温度和速度均对大熊猫精子的存活和复苏后活动有影响。在最佳条件下,大熊猫精子在液氮中(-196℃)保存三年,其活性无显著改变。

The golden hamster eggs could be fertilized by giant panda sperm capacitated in vitro. The second polar body was released after spermpenetration and the ooplasm of such fertilized egg was found to be able to induce pronucleus formation. The male pronucleus formed by ho-mofertilization usually starts decondension from the periphery toward to the center of nucleus, while in heterofertilization the pronuclear decon densation process is irregular and imcomplete resulting in relative smaller size.Cytochalasin B treatment...

The golden hamster eggs could be fertilized by giant panda sperm capacitated in vitro. The second polar body was released after spermpenetration and the ooplasm of such fertilized egg was found to be able to induce pronucleus formation. The male pronucleus formed by ho-mofertilization usually starts decondension from the periphery toward to the center of nucleus, while in heterofertilization the pronuclear decon densation process is irregular and imcomplete resulting in relative smaller size.Cytochalasin B treatment after sperm penetration prevents the male pronucleus migration from the egg cortex toward the center. It is(?) the efore, suggested that the male pronucleus migration of giant panda is also controlled by the microfilaments of the heterogeneous ooplasm.

大熊猫精子与地鼠卵的体外异种受精中,发现大熊猫精子穿入地鼠卵后可以激活受精卵产生极区,释放第二极体,受精卵内雌性原核形成。与此同时,地鼠卵的胞质也能促使大熊猫精子头发育成雄性原核,异种精卵间的相互作用与同种受精的相似。 细胞松弛素B能阻抑大熊猫雄性原核从地鼠卵皮层迁移到卵的中央,实验表明大熊猫雄性原核的迁移也受异种卵的微丝的控制。

Calcium was localized by in situ precipitation with potassium antimonate in giant panda sperm during capacitation and acrosome reaction. Before capacitation the calcium in sperm head was mainly l.localized on the outer surface of plasma membrane (PM) of the periacrosomal region. There wasalso a little calcium on the inner surface of the inner acrosomal membrane (IAM). During capacitation calcium was concentrated on the outer surface of the outer acrosomal membrane (OAM) and on the inner surface of PM of the...

Calcium was localized by in situ precipitation with potassium antimonate in giant panda sperm during capacitation and acrosome reaction. Before capacitation the calcium in sperm head was mainly l.localized on the outer surface of plasma membrane (PM) of the periacrosomal region. There wasalso a little calcium on the inner surface of the inner acrosomal membrane (IAM). During capacitation calcium was concentrated on the outer surface of the outer acrosomal membrane (OAM) and on the inner surface of PM of the periacrosomal region. During acrosome reaction calcium bound to the IAM and existed among the released acroso- mal contents. There were also some fine granules of precipitate on the outer surface of PM of the post acrosomal region during acrosome reaction. Calcium in sperm tail was mainly distributed in the matrix of mitochondria of the midpiece and the amount of calcium in mitochondria increased along with the capacitation process. The pyroantimonate precipitate granules were also distributed in the matrix near the outer dense fibres and near the axial filament complex.

应用焦锑酸钾原位定位法对大熊猫精子获能和顶体反应过程中进行钙定位研究,发现未获能精子的 Ca2+主要结合于顶体前区和赤道段质膜外侧和顶体内膜内侧(核膜侧);随着获能的进行,Ca2+进入精子内部并主要结合于顶体区质膜内侧和顶体外膜外侧;顶体反应的精子,Ca2+结合于顶体内膜外侧、顶体后区质膜外侧和分散存在于释放的顶体内容物中,有些顶体反应精子的顶体内膜外侧结合的Ca2+特别丰富。精子尾部的Ca2+主要分布于中段线粒体内,且其内所含Ca2+含量随着获能和顶体反应而增加。另外尾部致密纤维和轴丝处也有少量Ca2+分布。

 
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