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- A single centriole appears at the late stage of spermatid. 晚期精細胞中出現單個(gè)中心粒，但在成熟精子中消失。
- The tail emerged in the following stage in spermatid phase. 初級精母細胞略小，染色質(zhì)開(kāi)始凝集，次級精母細胞開(kāi)始出現尾部。
- The early spermatid is small with an oval shaped nucleus. 結果顯示：早期精細胞圓形，胞質(zhì)豐富，內含大量?jì)荣|(zhì)網(wǎng)小泡及線(xiàn)粒體。
- As spermatid nucleus elongates, the chromatin fibers are unwound and join together to form ribbon structure. 當精細胞核向長(cháng)形轉變時(shí),染色質(zhì)纖維解旋并結合在一起形成緞帶結構。
- At the present time, the whole meiotic pr ocess from leptotene spermatocyte to round spermatid of mammal can indeed occur in vitro . 建立生精細胞體外培養模型有助于研究精子發(fā)生的調控機制,可用于輔助生育技術(shù),治療精子發(fā)生阻滯的患者；
- The spermatid began to differentiate, and changed into longer elliptical shape, nuclear-plasm redistributed and moved towards two ends of the cell. 核也為圓形，較小。
- ZENG Zhi-nan, LI Fu-xue.Study on ultrastructure of spermatid differentiation in Cyclina sinensis[J].Acta Oceanologica Sinica, 1991, 13(4): 547-551. [4]曾志南; 李復雪.;青蛤精細胞分化的超微結構研究[J]
- An early spermatid had a round nucleus with reticulate chromatins and there were many mitochondria and Golgi vacuoles in the cytoplasm. 早期精子細胞核圓，染色質(zhì)呈網(wǎng)狀分布，胞質(zhì)中有許多線(xiàn)粒體和高爾基液泡。
- 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. 染色質(zhì)在精原細胞中為部分異固縮，在精母細胞中高度凝聚為染色體，在精細胞及精子中為均勻非致密態(tài)。
- We hypothesize that ZNF474 functions as a germ cell-specific transcription factor that plays important roles in spermatid differentiation and oocyte development. 表達序列標簽；
- The results indicates that the spermatogenic process was like other teleosts, both included following stages spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid and spermatozoon. 結果表明：黃顙魚(yú)精子發(fā)生的過(guò)程與其他硬骨魚(yú)類(lèi)相似，均經(jīng)歷精原細胞、初級精母細胞、次級精母細胞、精子細胞和成熟精子幾個(gè)時(shí)期。
- At the latestage of the antheridial development, as the cell wall began to degrade, all of the spermatid cells within anantheridium seem connected with each other by the expanded cytoplasmic bridges. 在精子器發(fā)生的后期,當精子細胞壁開(kāi)始降解時(shí),同一個(gè)精子器中所有的精子細胞似乎都由擴大的胞質(zhì)橋相互連接。
- In male, the immunopositive reaction in spermatogonia, spermatocyte and spermatid to testosterone antibodies strengthened gradually during the development and maturation of testis. 在大生長(cháng)期和成熟期，精原細胞和精母細胞對孕酮抗體發(fā)生強的免疫陽(yáng)性反應。
- The testis at spermatid phase develops continually, and is deep in color, and the spermatogenetic cells in seminiferous tubule are primarily composed of spermatids. 精細胞期，精巢體積繼續增大，顏色加深，生精小管內的生殖細胞以精細胞為主；
- Keywords Spermatogonia;Spermatid;Haploid;Flagella; 精原細胞;精子細胞;單倍體;鞭毛;
- Comparative Study on the Methods of Early Spermatid Micronucleus Test 小鼠早期精細胞微核試驗方法比較研究
- Keywords Male infertility;Spermatid DNA;Chromatin condensation;Flow cytometry; 男性不育;精子核DNA;染色質(zhì)縮合度;流式細胞術(shù);
- spermatoblastn. [生]精細胞;精子細胞
- the apoptotic signal positive cells were spermatocyte and spermatid, no spermatogonium was found to be signal positive. 方法 采用生精細胞原位凋亡、生精干細胞移植和生殖能力自主恢復實(shí)驗。
- Keywords chronobiology;circadian rhythm gene;Clock gene;round spermatid;acrosome;sperm fertility; 時(shí)間生物學(xué);近日節律基因;鐘基因;圓形精子;頂體;受精能力;
