原生质体

There were also a number of protoplasm body appeared in the perivitelline, especially in the area near the first polar body.

在卵周隙尤其是在第一极体的旁边，有许多原生质球存在。

The ligand encoded by SCR gene is a small pollen coat protein present on the surface of pollen grains. The receptor localized to the plasma membrane of the stigmatic papillae on the surface of the pistil is encoded by SRK gene.

配体是位于花粉粒表面的一个小的胞被蛋白，由SCR基因编码；受体是位于柱头乳突细胞原生质膜上的跨膜的蛋白质激酶，由SRK基因编码。

It is the first time that these phenomena were observed: Two nuclei are surrounded by plasma and locate at the central of the female gametophyte and the others nuclei are positioned at the fringe of the female gametophyte; Before the pollen tube enters the female gametophyte. the nuclei in chalazal end begin splitting of plasma and form multinuclear cell.4. The pollens of Gnetumc are spherical or applanate with single aperture. The ornamentation of exine is spine. The basis part of spine is lenience and the top part of spine is tip or obtuse sphere.

首次在买麻藤属植物的雌配子体中观察到2个游离核位于配子体的中央位置，且被一团原生质所包围的，其余的游离核位于边缘的现象以及花粉管进入雌配子体前，合点端的核已经发生胞质分裂形成多核细胞的现象 4、买麻藤的花粉近球形或扁平型，有单萌发孔，外壁表面具小刺状纹饰，小刺基部宽大，末端尖或钝圆。

Oenococcus oeni,an important microorganism during wine making could convert malic acid into lactic acid,and develop wine flavor and enhance the stability of biology.

通过对预处理剂质量浓度、酶质量浓度、酶解时间、菌龄等影响因素的分析，以及渗透压稳定剂的筛选，对酒酒球菌SD-2a原生质体的制备条件进行了研究。

Two outstanding fusants SR-7 and SR-T19 were chose out in the fusion group 90-11×FR-008, the former produces not only antibiotics the parents produced but also a new antibiotic effective gainst a wide range of both gram positive and negative bacteria, which the parents could not produce, and its product of the 37℃ fermentation was very effective against the cotton seedling damping off caused by Rhizoctonia sonali while product of the 26℃ was effective agaist the bacterial rots of turnip and Chinese cabbage; the latter have a much stronger activity against a wide range of fungi and yeasts than the parents.

在90-11×FR-008融合组合中，筛选获得2个优良融合子SR-7和SR-T19，前者除产生亲本产生的抗生素外，还产生亲本不产生的一种新的具有广谱抗细菌活性的碱性水溶性抗生素，防病试验表明，其37℃发酵产物对棉花苗期立枯病具有良好的防治效果，28℃发酵产物对萝卜和大白菜具有明显的防腐作用；后者与亲本FR-008的抗菌谱完全一致，但其活性强度都超过了FR-008；采用RAPD分子标记技术检测了SR-7和SR-T19与亲本的同源性及彼此间的差异，从而首次直接从DNA分子水平上验证了链霉菌的原生质体融合子及其遗传重组的多样性。

In order to develop and utilize these inherent genetic resources, in this research, we established an experimental system for leafbase-derived calli of Allium mongolicum Regel from the isolation of protoplasts, cultivation and plant regeneration by cell engineering techniques.

为开发利用其固有的遗传资源，本研究利用细胞工程技术建立了沙葱叶基愈伤组织原生质体的分离、培养和植株再生实验体系。

He terminal cell apoptosis depended on the time of complete degradation of protoplast in cell.During PCD process,all kinds of cell organelles in protoplast promoted secondary wall deposition at different degree.

EM观察结果表明纤维、基本薄壁组织细胞、导管分子的分化过程均是典型的衰退过程，它是由次生壁的沉积和原生质体的衰退这两个密切相关的过程组成。

Exogenous gibberellic acid (50μmol/L) added in darkness in the presence of CaCl〓(250μmol/L) also induced swelling and 〓 accumulation in protoplasts.

培养液中有CaCl〓（250μmol/L）存在时，赤霉素（50μmol/L）也能引起原生质体膨大和〓积累，处理后30min达最大，分别是对照的140.60％和172.67％。

And its high capacity for producing antibiotic remained stable after 4 times of subcultures.

实验结果表明，原生质体的紫外诱变比孢子的紫外诱变更易得到抗生素相对效价提高较多的突变株。

Capacity ofcarbon flow through HMS regulated the biosynthesis of chlortetracycline to a great extent.

12%的蔗糖、0.5%甘氨酸、溶菌酶酶解lh，是金色链霉菌原生质体制备的较优条件。

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。