查询词典 nonpathogenic

With in situ DNA hybridization, the EBV genomes have been demonstrated in the labial glands of the Sjogren′s syndrome patients (16/28), moreover the elevated content of EBV DNA has been identified in those with more severe destruction of labial glands. It is concluded that EBV, vhich has a normal site of latency at salivary glands in a nonpathogenic state, may be reactivated in Sjogren′s syndrome patients and play a role in the pathogenesis of this disease.

另外，我们用原位杂交方法观察了EB病毒DNA在干燥综合征病人唇腺组织的存在状况，结果发现28例干燥综合征病人中16例为阳性，其中腺泡组织破坏严重者，EB病毒DNA的含量亦高，并且EB病毒主要分布于大量浸润的淋巴细胞中，其次位于腺泡上皮细胞内，少量见于腺泡腔中，以上结果提示，在干燥综合征病人EB病毒处于活跃的复制状态，干燥综合征病人靶器官受损与EB病毒的活跃复制及其诱导的免疫反应密切相关。

The results revealed that there was nosignificant difference between the symptoms produced by the mutant and thewild type strain by directly injecting the bacteria into mature turnip leaves,however,the mutant was nonpathogenic by inoculations with leaf-clippingand-spraying methods.

应用不同的接种方法对胞外多糖突变体的致病性进行了分析，发现突变体通过注射接种仍能产生与野生型相同症状，但通过喷雾和剪叶接种却完全丧失了致病能力，说明甘蓝黑腐病菌产生的胞外多糖可能在致病过程的早期阶段起作用，但对症状的产生不是必须的。

To demonstrate experimentally the generation of velogenic NDV from a nonpathogenic waterfowl isolate, we passaged an avirulent goose isolate in chickens.

为了通过实验证明从水禽中分离的非致病型NDV可以转变为速发型病毒，我们通过在鸡体内传播鹅源性无毒力株，经气囊接种连续传代 9次，随后再在鸡脑内传代 5次。

Interestingly, the nho1 mutant also supported the growth of Pseudomonas fluorescens, a plant associating, nonpathogenic bacterium. However, NHO1 does not appear to play a role in the basal resistance to virulent Pseudomonas bacteria.

有趣的是nho1突变体对于一种应依附于植物的非致病菌——荧光假单孢菌是感病的，然而对于毒性假单孢菌，NHO1似乎并没有起到什么抗性作用。

Nevertheless, the eight virus isolates that were nonpathogenic in ducks replicated and transmitted efficiently to naive contacts, suggesting that highly pathogenic H5N1 viruses causing minimal signs of disease in ducks can propagate silently and efficiently among domestic and wild ducks in Asia and that they represent a serious threat to human and veterinary public health.

该现象提示高致病性流感毒株H5N1能够在野鸭或家禽体内迅速、隐匿复制而无明显表现，对人或家禽的健康安全构成严重威胁。您翻译的质量真不错，感谢您的参与我领第4单元。已完成。4单元译文。doc (27.5k)第10单元吧，可是我打不开，乱码，麻烦楼主发给我，邮箱已pm我领第七单元吧！我领第九单元吧！第七单元完成！

Methods Real-time PCR, using the primer-probe specific for the yst gene, was applied to detect the pathogenic （7 serotypes） and nonpathogenic （ 5 serotypes） Yersinia enterocolitica, other species of Yersinia （8 types）, and other enteric bacteria （8 types）.

应用针对致病性小肠结肠炎耶尔森菌染色体上yst基因而设计的特异引物和探针进行实时定量聚合酶链反应，检测致病性（7种血清型）和非致病性（5种）小肠结肠炎耶尔森菌、耶尔森菌属内的其他菌种（8种）及其他肠道细菌（8种）。

A/duck/Guangxi/22/2001 (DKGX/22) is nonpathogenic in mice, whereas A/duck/Guangxi/35/2001 (DKGX/35) is highly pathogenic.

我们用拮抗基因去产生一系列单一的综合基因，包括从DKGK/22中分离的一个及DKGX/35保留的7个基因片断，我们发现基因DKGK/22中的PA，NA，和NS某种程度能够消弱DKGX/35的致病性，但是DKGK/22病毒中的PB2能大大消弱DKGX/35病毒致病性，并且PB2的701位点天冬酰氨代替天冬氨酸在这种功能中起着主要作用。

Aeromonas hydrophila BA6 was identified as a nonpathogenic agent,while the other seven strains (BA1,BA3,BA10,BAH,BA15,BA16 and XA23) were pathogenic. However,there would be difference in virulence among the strains of the same or different species.

结果表明嗜水气单胞菌BA6株为非致病株，其余7株嗜温气单胞菌为致病株，但细菌的毒力大小在不同表型种间和不同菌株间都存在差异。

Methods Peritoneal macrophages of guinea pigs were infected in vitro by three different Leptospira strains, the virulent Leptospira interrogans serovar Lai type strain Lai, the avirulent L. interrogans serovar Lai type strain IPAV, and the nonpathogenic L. biflexa serovar Patoc type strain PatocⅠ, respectively, and heat inactivated Staphylococcus epidermidis was added 0.5, 1.5, 3 and 6 h after infection and incubated for 30 min. The effect of Leptospira on the phagocytosis of macrophage was evaluated by the inactivated Staphylococcus epidermidis phagocytosis rate and phagocytosis index. Phagocytosis and ultrastructure of peritoneal macrophages were observed by transmission electron microscopy 3 h after infection, and changes of cytoskeleton of the macrophages were observed by laser scanning confocal microscopy.

用三种不同毒力的钩体（致病性问号钩端螺旋体赖型有毒株Lai株、赖型无毒株IPAV株以及非致病性双曲钩端螺旋体Patoc型PatocⅠ株）分别感染体外培养的豚鼠腹腔巨噬细胞，并分别于感染后0.5、1.5、3和6 h加入热灭活表皮葡萄球菌孵育30 min，通过计算巨噬细胞对灭活表皮葡萄球菌的吞噬率和吞噬指数，检测钩体对巨噬细胞吞噬功能的影响；感染后3 h透射电镜观察巨噬细胞对钩体的吞噬、降解和细胞超微结构的变化；用激光共聚焦显微镜观察细胞对钩体的吞噬和巨噬细胞细胞骨架的变化。

Objective To study the relationship between DNA fragments in ENV gene of SIVmac and viral replicating ability. Methods Reciprocal recombinants were constructed by replacing the clonable DNA fragments of ENV region of the nonpathogenic SIVmac142 clone with the pathogenic SIVmac 239 clone.

猴免疫缺陷病毒(simian immunodeficiency viruses SIV)是一组在致病性和毒力方面具有多样性的灵长类动物病毒，其中，SIVmac239克隆感染的猴表现为与人类AIDS相似的疾病，称之为致病株，而SIVmac142克隆仅引起猴发生病毒血症，不发生临床综合征，称之为非致病株〔1〕。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。