雄性生殖

Blood-Testis Barrier is the harrier between capillary vessel and seminiferous tubule which is important to produce sperm and maintain male procreation function.

血睾屏障是睾丸内毛细血管与精小管之间存在的屏障结构。血睾屏障对精子的正常发生及雄性生殖功能的维持具有重要的作用。

In addition, some biological events, such as separating the male germ unit, providing movement orbits for the two sperm cells and inducing both sperm to synthesis DNA, may also be related to the degenerated synergid.

另外，雄性生殖单位的解体、提供精细胞的运动轨道和启动精细胞合成DNA的生物学事件也可能与助细胞有关。

In this paper, the male reproductive system of this species was investigated by light microscopy, and electron microscopy, and the tetraploidy embyros of the prawn were induced by heat shock treatment.

本文应用组织学、电子显微镜、细胞遗传学及多倍体诱导技术对日本沼虾雄性生殖系统、染色体及核型、多倍体产生的条件等进行了比较深入的系统研究，对于解决人工授精难题和培育出品质优良的养殖品系具有重要意义。

To evaluate the arrenotokous toxic action and the related mechanism of TDI,the tissue diversifications of testes at the level of morphology and enzyme were observed and the effect on content of RNA/DNA in arrenotokous cells was evaluated.

为评价甲苯二异氰酸酯的雄性生殖毒性，观察了吸入染毒TD I后，睾丸组织的形态学上和酶水平的变化，以及对生殖细胞RNA/DNA含量的影响。

The male reproductive system retains its primative characters on structure and function, but it has also made up its adaptability through the long-time evolution, which enables Daphnia carinata and other species of Cladocera to live with the changeable living environment.

隆线溞雄性生殖系统在结构与功能上表现出相对的原始性和适应性，两者相互结合，使以隆线溞为代表的枝角类更能适应复杂多变的生活环境。

Results In the medium and high dose F0 groups, it was observed that the atrophy and incrassation of seminiferous tubule, decrease of spermatogenesis, hyperplasia of interstitial tissue, especially in high dose groups spermatozoon abnormality and nucleolus concentration in the rats testis after DU ingestion for 14 months.

结论长期摄入贫铀对大鼠组织脏器的损伤具有一定的时间性和组织特异性，主要损伤集中在雄性生殖系统、免疫系统和造血系统，而对其他组织的损伤不明显。

The injection caused a distinct decrease in target gene expression level in ampullae, but no exterior appearance change of male reproductive system was observed.

结果表明：壶腹中目的基因表达水平明显下降，但未观察到雄性生殖系统的外观表型变化。

The most significant variance lay in the 1000-seed-weight,followed by flag leaf length and inflorescence shape and then by distance between flag leaf and inflorescence with least in inflorescence length,plant form,leaf width and seed length.Meanwhile,morphological characteristics of D.glomerata have significant relationships: those with upright and constrictive inflorescences hav...

其中，种子千粒重变异最大；旗叶长度、花序形状次之；穗叶距、花药宽度、旗叶宽度等性状变异中等；而花序长度、株型、叶宽、种子长度变异最小。2鸭茅植物形态学特征间存在明显相关性，花序直立、紧缩的鸭茅，叶片窄长，茎秆粗壮，旗叶较长，雄性生殖器官发育良好，结种性能强；而花序下垂、开展的鸭茅则与之相反。3聚类分析表明，不同野生鸭茅种源可划分为3类，其中花序下垂种源聚于一类；而花序直立的种源分居另两类。4从形态学特征及相关农艺性状分析，花序直立的鸭茅更具开发利用潜力。

AIM: To observe the effects of infrasound on sperm quality and explore some underlying mechanisms.

目的：观察次声作用对大鼠精子质量的影响，初步探讨次声对雄性生殖系统的作用机制。

Epithelial cells of hepatopancreas and midgut, and male and female reproductive system were not sensitive to the WSSB...

WSSBV对中肠和中肠育囊上皮细胞，肝胰腺上皮细胞，雄性生殖系统精原细胞，输精管上皮细胞等不敏感。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。