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These authors examined, in mice, the role of colonization with the human commensal bacterium Bacteroides fragilis on the immune response to challenge with Helicobacter hepaticus.

这些结果表明菌群分子可调解健康与疾病之间的重要平衡。基于全新的生物界原则，利用共生因子如PSA的免疫调节能力可能将为人类炎症疾病的治疗提供方法。

Here we explore immunologic mechanisms of colonic carcinogenesis by a human colonic bacterium, enterotoxigenic Bacteroides fragilis.

通过研究人结肠细菌——产肠毒素脆弱类杆菌，探索结肠癌形成的免疫学机制。

A marine bioluminescent bacterium, strain DH132, was selected as the test organism in chloramphenicol toxicity test.

利用药敏纸片法，从本实验室保存的发光细菌中筛选出一株对氯霉素敏感的细菌DH132。

The bacterium that causes Lyme disease, Borrelia burgdorferi, and rabies virus are examples of zoonotic pathogens that have a broad host range.

造成莱姆病的伯氏包柔螺旋体以及狂犬病的病毒就是这种具有广泛宿主范围的动物源性病原体。

In prokaryotes, a means of transferring genetic information from one bacterium to another across a bridgelike structure.

接合作用：原核生物中的一种传递遗传信息的方法。它通过一个桥状的结构从一个细菌到另一细菌。

So we conclude that phylogenetic relationships between different aphids and their endosymbiotic bacterium Buchnera may be different, and this conclusion is accordant with previous study. This work not only fill a gap on phylogenetic relationships between the three aphids, M.

这一工作不仅弥补了这三种蚜虫与其内共生菌Buchnera之间的进化关系空白，同时有助于我们在了解这些蚜虫Buchnera的系统进化特征的基础上，进一步全面地了解了这三种蚜虫的内共生菌Buchnera。

Cloned one virus binding protein from Rhopalosiphum maize Yangling biotype through PCR technique, using designed specific primers based on this protein partially sequence. In nucleotide and amino acid sequenece levels, this protein was identified as GroEL protem of endosymbiotic bacterium (Buchnera sp.) of aphid.

以玉米蚜杨凌生物型为材料，设计特异性引物采用PCR的方法在国内首先克隆了一种玉米蚜体内参与传毒的共生菌groEL基因，序列测定结果表明：玉米蚜杨凌生物型共生菌groEL基因全长为1647bp。

To further explore the phylogenetic relationships between the aphid Myzus persicae and its endosymbiotic bacterium Buchnera, COⅠ/COⅡ, 12S/16S rRNA and EF-l alpha genes in four populations of M. persicae were amplified. Through phylogenetic trees constructed by the COⅠ/COⅡ, 12S/16S rRNA and EF-l alpha genes in M.

为进一步明确桃蚜与其内共生菌Buchnera之间系统进化关系，参照前人研究蚜虫系统进化所用的COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha的3对引物，对桃蚜的COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha基因进行了扩增，并构建了桃蚜COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha基因序列系统进化树。

Second acid is calcic - one of bacterium of important cause of disease that Bowman does not move bacillus is hospital infection, in surroundings of extensive consist in.

概要： 乙酸钙-鲍曼不动杆菌是医院感染的重要病原菌之一，广泛存在于四周环境中。

Through the experiment of macromolecules (such as starch, fat, protein, cellulose)degradation we can get 17 effective bacterium, 6 in the calefactive, 4 at the high-temperature, and 7in the depressed-temperature phase.

2通过大分子物质(淀粉、油脂、蛋白质、纤维素)降解试验，筛选出降解能力较强的细菌17株，其中升温阶段细菌6株，高温阶段细菌4株，降温阶段细菌7株。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"