卵原细胞

卵原细胞增殖期为41-84天胎龄间，而增殖高峰在41-48天间出现。

The proliferative phase of the oogonium was found in the gestational age between 41d and 84d .

卵原细胞直径约20μm，核大而圆，核仁较为疏松，一至数个；

Oogonium is about 20 μ m in diameter . Its nucleus big and round in shape .

在免疫组织化学的观察中，ERK和JNK在卵原细胞和精原细胞中均为阳性反应，且定位相似：细胞质及细胞核核质呈阳性反应，核仁阴性。

The immunohistochemistry showed that ERK and JNK had the similar location which the cytoplasm and nucleoplasm were immunostained in the ovogonium and spermatogenous cells .

卵巢前端卵原细胞双行排列；

Oocytes arranged in a double row in the anterior part of the ovary ;

随着激素浓度的增加卵原细胞分生和卵母细胞直径增长加快。

With increase of hormone concentration , reproduction of oocyte quickened and oocyte diameter increased .

除了在卵原细胞以外，环礼片层一般都分布在远离细胞核的卵质中。

Except in oogonium stage , annulate lamellae frequently appear in the ooplasm distal away from the nucleus .

从卵原细胞到卵母细胞的发育过程中，核酸逐渐分散，蛋白质大量沉积。

With the development of oogonia to oocytes , nucleic acids ( DNA and RNA ) are gradually scattered .

在光镜下难以根据性原细胞的形态和大小区分卵原细胞和精原细胞。

It was difficult to distinguish oogonium from spermatogonium according to the shape and size of gonium under light microscope .

在桑蚕幼虫卵巢组织培养的过程中，可以观察到3种细胞，即成纤维细胞、游走细胞和卵原细胞。

There were three kinds of cells found in the tissue culture of the ovary of silkworm larvae , namely fibroblasts , wandering cells and oogonia .

卵巢发育的第Ⅰ期，外观呈透明线状，无色素分布，粘贴于消化道上，卵原细胞附于生殖上皮或其附近的卵巢基质中。

During stage I of ovarian development , transparent ovarian lobes were sticky to gut without pigment , its ovogonium were in the reproductive cortices or the ovarian matrix nearby .

并且在卵原细胞和前期的卵母细胞中表达强烈，而在后期时相的卵母细胞中阳性信号逐渐减弱，且向细胞边缘聚集。

They were transcripted strongly in oogonia and early oocytes , but the positive signals gradually weakened in the latter phases of oocytes and finally these signals gathered round the cell edge .

用电子显微镜技术观察鲻鱼早期卵子发生进入第一次成熟分裂前期联会丝复合体期、粗线期、双线期和网状期卵原细胞和初级卵母细胞生发泡和胞质的超微结构特点。

Ultrastructural characteristics of oogonia and primary oocyte in the synaptonemal complexes , pachytene , diplotene and dictyate stages of the first meiotic prophase of striped mullet in the early oogenesis were observed hr using transmission electron microscopy .

结果表明，在泥螺卵子发生的四个时期即卵原细胞期、卵黄发生早期、卵黄发生中期和卵黄发生后期，卵母细胞内高尔基复合体经历了一系列的变化。

The results showed that Golgi complex was an organelle that experienced a series of changes during four stages of the oogenesis of Bullacta exarata , which were oogonia , early vitellogenic oocyte , mid-vitellogenic oocyte and end vitellogenic oocyte .

上浮后523.50~596.35℃·d（40~45d），部分稚鱼性腺开始分化，先分化的为雌性，形成单侧的卵巢，其内可见明显的卵原细胞；

At 523.50 ~ 596.35 ℃· d ( 40 ~ 45d ), the gonad of the part of the young fish begin to differentiate , and the female fish first began to differentiate and formed unilateral ovary , in which emerged limpid oogonium ;

结果发现：在栉孔扇贝的生殖腺内发现了病毒，但是病毒的感染部位主要分布在生殖腺小管的外膜中，而卵原细胞是由生殖小管的内生殖上皮产生的。

The result found that the viruses are observed in the gonad of the scallop Chlamys farreri . But the infection position of virus mainly distribute in the exosporium of the reproduction tubule which makes up of the gonad . The oogoniums are produced by inside germinal epithelium .

卵巢包括4种形态的组分：（1）卵巢壁，（2）生殖上皮，（3）卵母细胞（早期卵巢还包括卵原细胞）一滤泡细胞层，（4）卵巢壁内突。

The ovary contains four morphological components : ( 1 ) the ovarian wall ,( 2 ) the reproductive epithelium ,( 3 ) the cellular layer containing oocytes , oogonia ( especially for early developing ovary ) and follicle cells and ( 4 ) the extensions of the ovarian wall .

牛蛙卵细胞在生长发育过程中可以分为卵原细胞期、初级卵泡期、生长卵泡期和成熟卵泡期。

The entire course of oogenesis can be divided into four stages , i.e.oogonium , primary follicles , growing follicles and mature follicles .