细胞核

In addition, spermiogenesis includes chromatin condensation, migration of the cytoplasm and mitochondria to the caudal pole of the nucleus, formation of a moderate axial nuclear fossa containing the proximal centriole and part of the distal centriole and presence of a short cytoplasmic canal separating mitochondria from the flagellum.

另外，精子发生过程中还包括染色质浓缩，细胞质和线粒体向细胞核的尾端迁移，在核的后端中轴位置上形成中等大小的核后凹，近端中心粒和远端中心粒的一部分嵌在核后凹之内，短的胞质内陷管将线粒体与鞭毛分隔开。

Results as bellows: AtSIRT1 was located in Mitochondrial as hSIRT4 of human, and maybe take part in respiration and electron transformation chain, AtSIRT2 was located in nucleolus as hSIRT6 of human, maybe play important role in extend lifespan;mutation in AtSIRT1 leaded to cotyledon of plant turn to yellow and caused short life span. Mutation in AtSIRT2 could make the color of leaf turn to purple and accumulate a lot of anthocyanin;Sirtinol, a inhibitor of SIRT which did not cause the same model of the mutation of AtSIRT1 and AtSIRT2 indicated that the mechanism of Sirtinol was different from other organism;the structure of AtSIRT1 and AtSIRT2 were similar to other known Sir2, which indicated that they maybe have the same function;AtSIRT2 was overexpressed and its activity was detected.

结果表明，1，拟南芥AtSIRT1与人的同源蛋白hSIRT4相同，定位于线粒体，可能参与呼吸作用和电子传递，SIRT2与人的同源蛋白hSIRT6相同，定位于细胞核，可能同它的功能类似，在延缓衰老及调节细胞寿命方面起作用。2，AtSIRT1突变，可引起幼苗和植株的子叶变黄和早衰；AtSIRT2突变，可引起叶片发紫，沉积大量花青素。3，SIRT蛋白的抑制剂Sirtinol不能表型模写AtSIRT1和AtSIRT2突变体，说明Sirtinol在拟南芥中的作用机制不同于其他生物。4，AtSIRT1和AtSIRT2蛋白质结构预测表明与已知的Sir2蛋白相似，揭示其功能的相似性。5，在大肠杆菌中过量表达了其中一个基因(AtSIRT2)，可体外检测其酶学活性，进一步证明其功能。

Results By using optical microscope,the neurocytes of hippocampus in experimental group were observed to denaturalize,tumefy,destroy and disappear.And under electron microscope,the karyon was irregular,nucleoles deviated,chondriosome tumefied,crista collapsed,membrane was damaged,substance cavitated.Such changes were more evident with the increased paroxysm of epilepsy,the parameters between control group and operation group had no difference（P＞0.01）.But make a monofactorial variance analysis among cells' number,area,circumference and integral optical density in different groups,it showed that there were significant differences between optional two groups（P.01;at the same time,the more serious injury in hippocampus,the more powerful GFAP immunoreaction was.

结果： 实验组海马区光镜下可见神经细胞变性、肿胀、坏死及神经细胞脱失改变，电镜可见细胞核形态不规则、有切迹、核仁偏位、线粒体肿大、嵴断裂、膜破损和基质空化等改变，随癫痫发作次数增加上述改变越明显，对照组与手术对照组比较，各参数差异无显著性（P＞0.05），将不同组别大鼠细胞数、面积、周长、积分光密度分别作单因素方差分析，不同组别间均差异有显著性（P.01），同时观察到海马区GFAP免疫反应阳性的胶质细胞随海马损伤的加重而GFAP免疫反应增强。

The transmition elec-microcope observation indicated that kangshuai Ⅰ prescription can chang the ultramicro fabric of nerve cell in quatar CA1 in hippocampus of the model rats by affecting the cell organs such as karyon、rough endoplasmic reticulum 、chondriosome、dictyosome and lipofuscin, which has similar effect with the original prescription.

透射电镜结果提示抗衰Ⅰ号各剂量组可以改善衰老模型大鼠海马CA1区细胞核、粗面内质网、线粒体、高尔基体、脂褐素体等细胞器的变化，尤以高剂量改善明显，与强力抗老液作用相仿。

Objective To examine the distribution of ubiquitin positivestructures in brain of Chorea Huntington and pathological basis of cognitive and psychiatric symptoms in a large Northern-Chinese kindred.

目的 研究Huntington舞蹈病的组织病理改变特点，观察泛素阳性营养不良性神经突起和神经细胞核内包涵体在大脑不同部位的分布规律，探讨痴呆和精神异常的病理基础。

In eukaryotic cells, DNA is located in nucleolus in the form of chromatin by combining with histone proteins.

在真核生物中，DNA分子缠绕在组蛋白上形成染色质保存在细胞的细胞核中。

It was suggested that the HMG proteins may play an important role in the structure and function of chromatin.

运用原子力显微镜首次清楚地观察到纳米水平的鸡红细胞核小体的结构。

It is hard to tell nuclear chromatin pattern from the uploaded photos.

从上传的图象中难以分辨细胞核的染色质结构。

Further more, hoechst stained caveolin-1 expressing GH3 cells showed chromatolysis and the character of cell and cell apoptosis was confirmed by TUNEL assay. To obtain this data, we hypothesize that caveolin may play a role in bromocriptine induced GH3 apoptosis.

在转型48小时后，GH3细胞表现外源性caveolin-1，其细胞呈现萎缩形态且其细胞核呈现计画性死亡的核体分解现象；但表现EGFP的细胞仍维持正常形态。

In the kelp' s ultrastructures, chromatophore was sensitive .whereas mitochondria and nucleolus were stabilized comparatively.

在海带的超微结构中，色素体是海带对褐藻酸降解菌感染最为敏感的细胞器，线粒体和细胞核则相对较稳定。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。