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但是精子细胞的完全成熟尚未实现。But Mature of the spermatid was still hard to achieved.

晚期精细胞中出现单个中心粒,但在成熟精子中消失。A single centriole appears at the late stage of spermatid.

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精细胞的分化可分为五个时期。The spermatid differentiation can be divided into five stages.

用改良的低渗肿胀法检测精子细胞膜的完整性。Integrity of spermatid membrane was examined by improved hyponotic swelling test.

次级精母细胞经短暂的发育过程很快形成精细胞。The secondary spermatocytes become the spermatid quickly by short time development.

精细胞和精子中无线粒体和顶体结构。The mitochondria and the acrosomal structure hadn't been found in spermatid and sperm.

免疫组织化学显示膜联蛋白A1主要分布于精原细胞核、精子细胞顶体帽及精子胞质残余体内。Annexin A1 mainly distributed in nuclei of spermatogonia, acrosomal cap of spermatid and residual body of sperm.

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在无精症患者中是由生精阻滞所致,最常见的阻滞发生在精子细胞水平。In aspermous Patients the reason is the obstruction of spermatogenesis, the most common obstruction occurs in the spermatid level.

中心粒附属物和近端中心粒的相继消失可以看作是成熟的最后标志。The disappearing of the centriolar adjunct and proximal centriole in succession might be considered as a sign of being mature completely of the spermatid.

试验四研究了泰山螭霖鱼精巢在第一次性成熟过程中的发育规律和各级精母细胞的超微结构。In the last EXP, the testis development during the first mature and the ultrastructure of spermatocytes of were studied. The process of spermatid formation was described.

染色质在精原细胞中为部分异固缩,在精母细胞中高度凝聚为染色体,在精细胞及精子中为均匀非致密态。Chromatin hetropycnote partly in spermatogonium, then become highly coacervate to form chromosome at the stage of spermatid and at last decondense at the stage of spermatozoon.

在大生长期和成熟期,精原细胞和精母细胞对孕酮抗体发生强的免疫阳性反应。In male, the immunopositive reaction in spermatogonia , spermatocyte and spermatid to testosterone antibodies strengthened gradually during the development and maturation of testis.

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第二次成熟分裂由次级精母细胞产生精细胞,有核32个,呈圆形、梭形和弯梭形,由后者发育为32个精子。In the secondary maturation cell division the secondary spermatocyte generated spermatid containing 32 nuclei with round, spindle and crescent shapes, which eventually developed into 32 spermatozoon.