链球菌

Objective: To study the gene regulation of natural transformation in Streptococcus pneumoniae.

目的：探讨肺炎链球菌自然转化基因调控的研究进展。

Little is known about how pneumococci became pathogenity from parasitism. Natural transformation is a kind of gene transfer manners in bacteria.

自然转化是细菌之间基因转移的一种方式，肺炎链球菌是目前发现转化效率最高的一种细菌。

S.pneumoniae is a representive of a diverse group of bacteria capable of natural genetic transformation.

有现象提示肺炎链球菌的转化可能与细菌的毒力、耐药相关。

Nephelometer method was used to measure A value of culture medium in the different incubation conditions.

采用比浊法测定不同培养条件下变形链球菌luxS基因缺陷株培养液的吸光度A值。

In particular, these compounds are superior to the existing cephem derivatives of the onium salt type in the antibacterial activities on methicillin-resistant Staphylococcus aureus, penicillin-resistant Streptococcus pneumoniae and imipenem-resistant Pseudomonas aeruginosa, which makes them highly useful as remedies for infectious diseases caused by various pathogenic bacteria.

特别是，它具有比现有的__盐型头孢烯衍生物更高的对抗甲氧苯青霉素抗性的金黄色葡萄球菌、青霉素抗性的肺炎链球菌和亚胺培南抗性的绿脓杆菌的抗微生物活性，并因此可非常有效地作为各种病原菌衍生的传染病的治疗剂。

Objective: To select and purify salivary receptors of Streptococcus mutans from experimental salivary acquired pellicle.

目的：筛选和纯化变形链球菌血清型c的牙面粘附唾液受体。

It was seen that 5-15 of adults and 15-30 of children may be affected by pharyngitis , caused by the bacteria group A streptococci .

这是看到5月15日％的成年人和15-30 ％的儿童可能会受到咽炎，所造成的该种细菌的A组链球菌。

Prevention of rheumatic fever and diagnosis and treatment of acute Streptococcal pharyngitis.

美国心脏病协会最近更新了急性链球菌性咽炎的诊断和治疗指南。

By the observation under the transmission electron microscope, it was founded that Nisin extract made the cell distorted and plasmolysis, followed by cell broken and cell components releasing which turned the cell into irregular residues.

透射电镜观察发现，加入乳酸链球菌素后，菌体变形，出现质壁分离现象，进而菌体细胞破裂，细胞内容物大量外泄，菌体成为不规则残片。

Pneumococcus is a kind of opportunistic pathogenic. The conditions of host greatly infleunce its pathogenesis.

肺炎链球菌是怎样从寄生转变为致病的机制目前尚不清楚。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。