polar body

Objective: To study the effects of endothelin-1 ( ET-1) on mouse oocyte germinal vesicle breakdown ( GVBD) and extrusion of the first polar body ( PBI).

目的研究内皮素-1（ET-1）对小鼠未成熟卵母细胞生发泡破裂（GVBD）、第一极体（PBⅠ）排出的影响。

The first polar body can be labeled by FITC | PNA indicating that it contains CGs.

体外成熟过程中所排出的第1极体也被FITC-PNA所标记,说明第1极体中含有皮质颗粒.

Tetraploidy was induced by inhibiting polar body I in eggs from triploid Crassostrea gigas fertilized with haploid sperms with 0.5mg/dm 3 CB treatment.

本文采用长牡蛎三倍体卵子与二倍体精子授精，用0.5mg/dm3CB处理受精卵抑制第一极体排放诱导出四倍体。

The new technique checks the chromosomes in the polar body.

这项新技术用于检查极体中的染色体是否异常.

These results indicate that CHX at an appropriate concentration can improve the parthenogenetic development of buffalo oocytes, CB at an appropriate concentration may inhibit the extrusion of the first polar body and increase the proportion of activated oocytes with two pronuclei. 2.

结果表明，适当浓度的CHX能提高卵母细胞激活效果，适当浓度的CB可抑制卵母细胞第二极体的排出，提高孤雌激活后双原核的比例。

Collection and Preservation of First Polar Body of Oocyte in Mice

小鼠卵母细胞第一极体的采集与保存

Chromosome segregation in fertilized eggs from pearl oyster Pinctada martensii Dunker following the first polar body inhibition with cytochalasin B

CB抑制合浦珠母贝受精卵第一极体释放的染色体分离

After artificial fertilization, the first and second polar body was released from the egg. The blastula was formed by spiral cleavage. The gastrula, which was formed by invagination, was hatched at 24h pf ( post-fertilization).

单环刺螠虫受精后卵子先后排放第一、二极体，经螺旋型卵裂后生成腔囊胚，囊胚经内陷形成原肠胚，胚体于受精后24h孵化，形成担轮幼虫。

The number of the first polar body ( PbI) were checked, and morphological classes of PbI were counted.

了解卵子第一极体形态与胚胎形态和临床妊娠的关系。

This last division and the expulsion of the second polar body occur only after fertilization.

这种最后的分裂和次级极体的淘汰只有在次级卵母细胞受精后才会发生.