细胞核

Some proteins change their affinity to the given DNA fragment depending on spermatogenesis. It suggests that the NM-L-IF is the most important in the condensation and remodeling of the sperm nucleus and in the morphogenesis of spermatids.

精子发生中NM-L-IF的形态结构、蛋白组成及与DNA的相互作用发生显著变化，这可能与精子细胞核的浓缩变形以及形态发生密切相关。

An early spermatid had a round nucleus with reticulate chromatins and there were many mitochondria and Golgi vacuoles in the cytoplasm.

早期精子细胞核圆，染色质呈网状分布，胞质中有许多线粒体和高尔基液泡。

In the examination of immunofluorescence using the polyclonal antisera against centrin to detect the expression of centrins in the rat male germ cells, it was found that the fluorescent centrin was localized on centrioles juxtanuclear position in the early round spermatid stage.

用制备的Centrin多克隆抗体，对大鼠生精细胞进行免疫荧光染色，可见呈荧光的Centrin蛋白定位于细胞核近旁的中心粒上。

Annexin A1 mainly distributed in nuclei of spermatogonia, acrosomal cap of spermatid and residual body of 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。

The spermatozoa are embeded in a extracellalar matrix composed of high dense fibrils matrix and flocculent and concentric vesicles similar to that in the primary spermatophore layer, but the later lack of spermotozoa. The flocculent and concentric vesicles are often seen to release their contents around the main body of spermatozoa. The spermatozoa may absorb the contents to form vesicular zone and membrane zone in sperm nucleu. The secondary spermatophore layer is distinctly subdivided into inner region and outer region. The loose outer region consists of canaliculated reticulum and large flocculent vesicles.

输精管内的精荚为管状，由精子群、精荚基质及初级精荚壁和次级精荚壁组成，初级精荚壁与精荚基质是相连续的，它们之间无明显界限，两者均由电子密度较高的纤丝状基质和絮状泡和同心圆泡组成，但后者不含精子，后者中的絮状泡和同心圆泡常在精子主体部周围释放内含物，可能与形成精子细胞核中的泡状带和膜状带有关，在交配后的雌虾，其头胸部腹面上粘着的精荚中，其基质内已不见絮状和同心圆泡，仅见稀疏的纤丝。

Their shapes were diversiform such as triangle spherical, nummular, elliptic and fusiform etc.They had one or several tuber.The immunopositive fibers were strings of pearls,and crossed each other. This experimentation results showed that development level of nNOS immunopositive neurons approach the adult rabbit when it is a young rabbit. The effete change appears when rabbits turn ageing.That was expression intensity weaken.

nNOS阳性神经元呈棕褐色，着色主要位于胞浆内，细胞核处染色较为浅淡；神经元胞体形态多种多样，有三角形、圆形、椭圆行、梭形等多种形状，神经元突起有一个或者数个；nNOS阳性纤维大多呈棕色串珠样，有些区域nNOS阳性纤维交错分布，相互交织成网状。

Fiber similar spindle-shaped cells, equality configuration, or egg shape slender shape of nuclei, nucleolus well developed.

纤维型细胞类似纺锤状，平等构形，有蛋形或细长形的细胞核，核仁发育良好。

Based on principle of pollen abortion, utilizing tapetum of anther cell, mitochondria of tapetum, callose well, process of cell meiosis during formation process of pollen, we adopt genetic transformation to create plant male sterility, such as, exogenous cytotoxin gene, chaperones, anti-sense RNA, degradation of callose ahead of time, disturbing information intercommunion between mitochondria and nucleolus and affected development of pollen sporule by bacteria.

根据花粉败育的原理，利用花药细胞绒毡层、绒毡层线粒体、胼胝质壁、细胞减数分裂过程等花粉形成过程中的不同环节，采取外源细胞毒素基因、分子伴侣、反义RNA技术、提早降解胼胝质、扰乱线粒体与细胞核之间的信息交流和细菌影响花粉小孢子发育等策略，使花粉不能正常形成，从而产生不育花粉，达到产生雄性不育的目的。

The objectives of this paper are to review the related progress of plant nuclear male sterility.

本文旨在对细胞核雄性不育相关研究的进展情况进行简要综述。

The number of stipe cells quadrupled between the primordium stage and the onset of rapid elongation and increased by 50% thereafter.

当子实体发育之早期菌柄细胞是双倍的细胞核，快速生长期之菌柄中间和顶端细胞的平均数是

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。