生殖细胞

Gaseous formaldehyde has significant demage effect on chromsome in body cells and sperm cell.

气态甲醛对小鼠体细胞和生殖细胞的染色体具有明显的损伤作用。

The results suggest that CP might have reproductive damage effect to sperm and testicular germ cell in mice.

小鼠腹腔注射环磷酰胺对雄性小鼠生殖细胞有损害作用。

The results showed that taurine has no significant influence on testis index, epididymis index, spermaduct index, penis index and testis tectology of baby and young rats, but can make old rat testis tectology better, prevent convoluted seminiferous tubule degeneration, germ cell distortion and leydig cell atrophy. Taurine increase the level of T, E2 and LH in baby rat obviously, but has no significant effect on the level of FSH. The level of T and LH was obviously increased by taurine in young and old rats, but the level of E2 and FSH has no significant changes.

结果证明：牛磺酸对幼年、青年、老年大鼠睾丸指数、附睾指数、输精管指数和阴茎指数没有明显影响；对幼年、青年大鼠睾丸组织形态没有影响，但可明显改善老年大鼠睾丸组织形态，阻止曲细精管退化、生殖细胞变形和间质细胞萎缩；显著促进幼年大鼠 T 、 E2、 LH 分泌，而对 FSH 没有明显影响；明显促进青年和老年大鼠 T 和 LH 分泌，而对 E2和 FSH 没有明显影响。

The spermatogenesis includes five stages: spermatogonium、primary spermatocyte、secondary spermatocyte、spermatid and spermatozoon.

雄体的生殖细胞发生经历精原细胞、初级精母细胞、次级精母细胞、精子细胞和成熟精子五个时期。

Every_dosage group of GTW cause sperm deformity, do harm to primary spermatocyte chromosome aberration and synaptonemal complex, were significantly higher than that of negative control.

雷公藤多甙3个剂量组均可致精子畸形并对初级精母细胞产生损伤，以及具有生殖细胞联会复合体损伤，与阴性对照组比较差异均具有统计学意义(P均。05)。

Finally, the physiological function of non-productive sertoli cell and leydig cell during spermatogenesis are discussed in this paper.

最后，文中还讨论了半滑舌鳎精巢中非生殖细胞（间质细胞和Sertoli细胞）的分布及其可能的生理作用。

The spermatogenesis includes five stages: spermatogonium、primary spermatocyte、secondary spermaticyte、spermatid and spermatozoon.

雄体的生殖细胞发生经历精原细胞、初级精母细胞、次级精母细胞、精子细胞和成熟精子五个时期。

The females incubated at 33 , their ovarium has powerful cortex, the germinal epithlium produce oocyte, its medulla degenerate into ovarian cavity. During sexual differentiation, mitochondria and smooth endoplasmic reticulum in cells of ovary increase in quantity, they disintegrate after sexual differentiation. There are a lot of big grana in cells of ovary before sexual differentiation, in the course of sexual differentiation the quantity of the big grana decrease, while small grana increase and peakafter sexual differentiation. The males incubation at 26 , cortices of their testes degenerate into a thin albuginea. Medulla are formed by testicular cords in which scatter spermatogonium.

33℃下孵化的小龟卵巢皮质发达，由原始生殖细胞产生卵原细胞，髓质退化成为卵巢腔，分化时卵巢细胞的超微结构显示线粒体和内质网的数量大大增加，它们在分化结束后解体，分化前细胞内有较多的大颗粒，在分化中大颗粒减少，小颗粒增多，在分化后小颗粒达到最多。26℃下孵化的小龟精巢皮质退化成为一层薄的白膜，髓质有许多睾丸管构成，管腔内有散落排列的精原细胞。

The first 0.1%collagenaseⅣ 0.1% hyaluronidase for 20 min and than 0.25% trypsin 0.04% EDTA 5μg/mL DNaseⅠfor 5 min,its enough to obtain germ cells and have optimal cell viability. 8.4±2.6×106 cells per gram testis were isolated and there was(19.7±5.3)% of PGP9.5 spermatogonium and (23.8±3.6)% of c-kit spermatogonium.

采用两步酶消化法，0.1%胶原酶和0.1%透明质酸酶消化20 min，0.25%胰酶 0.04% EDTA 5μg/mL DNaseⅠ处理5 min，就可以使睾丸生殖细胞充分分离处出来，每克睾丸组织克获得8.4±2.6×106个细胞，其中PGP9.5 精原细胞占(19.7±5.3)%，c-kit 精原细胞占总数的(23.8±3.6)%。

Primordial germ cells were the progenitor cell of spermatozoon and ovum.

原始生殖细胞是精子和卵子的前体细胞。

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。