AI viruses are divided into two groups based on their ability to cause disease in poultry: high pathogenicity or low pathogenicity.
按照在禽类群体中的致病力，可将禽流感病毒分为两类：高致病性或低致病性。
Moreover, PAMPs are essential for the survival or the pathogenicity of microbes; thus, they cannot simply do away with PAMPs to evade recognition by the immune system.
此外PAMPs对于病原体的生存是必不可少的，因此病原体不能单靠抛弃PAMPs来逃避免疫系统的识别。
The transformation system is the basis for study of pathogenicity mechanism and functional gene of the fungi.
该转化体系的建立为研究该菌的致病机制和功能基因分析奠定了基础。
Knowledge of cellular microbiology will provide a deeper understanding of the evolution of pathogenicity and host-parasite relationships.
掌握细胞微生物学知识有助于更深入地理解微生物病原体的致病过程，以及宿主和病原体的相互关系。
Probiotics have been defined as living microorganisms with low or no pathogenicity that exert beneficial effects on the health of the host.
益生菌是一类对宿主机体健康有益的低致病性或无致病性微生物。
So, it's a new pathogenicity slime mold.
所以，这是一种新的致病性粘菌。
Animal test indicated it had pathogenicity.
动物试验证明，该菌具有致病性。
The pathogenicity of hypha and spore was weakened.
菌丝和分生孢子致病性减弱。
There was no correlation between pathogenicity and colours of colony.
菌落颜色与致病性无明显相关。
The term pathogenicity denotes the ability of a parasite to cause disease.
致病性这一术语是指寄生物引起疾病的能力。
The high pathogenicity avian flu has broken out in many countries this spring.
今春，不少国家和地区都相继爆发了高致病性禽流感。
The result of inoculation showed that F. moniliforme had the highest pathogenicity.
致病力测定结果表明串珠镰刀菌的致病力最强；
Objective: To study the pathogenicity characters of Vibrio cholera in Shenzhen city.
前言：目的：探讨深圳市霍乱散发的病原学特征。
A set of strains with stable pathogenicity by screening from the strains tested were selected.
还从供试菌株中筛选出一套具有稳定致病力的鉴别菌株。
There was no significant difference between B9 and B9-R2 in melanin production and pathogenicity.
B9 R2的黑色素产生能力和致病力与亲本B9菌株相同。
Many bacteria including some pathogens can enter this state and maintain virulence or pathogenicity.
许多细菌包括病原微生物可进入这一状态并保持毒力或致病性。
Objective: to investigate the drug resistances of 71 strains enteropathogens and pathogenicity to mouse.
目的：了解71株肠道病原菌的耐药性及对小鼠的致病力。
Objective: to explore the adhesiveness and pathogenicity of UU to rabbit epithelial cell of tubal mucosa.
目的：探讨解脲支原体对兔输卵管黏膜上皮细胞的粘附及其致病性。
Results indicated that the reaction of cotton varieties varies with the pathogenicity of different isolates.
结果是棉花品种对黄萎病菌的反应因菌株的致病力强弱而不同。
The pathogenicity of isolates tested as different lineage and collected from different hosts varied greatly.
来自不同谱系和寄主的菌株，其致病性差异较大。
Objective To study the species, quantity and pathogenicity of air carried pollens in Southern Shandong Province.
目的探讨鲁南地区气传花粉的种类、分布、数量及其致病性。
In addition, the study shows that the pathogenicity of the bacteria is affected by the body temperature of fish.
此外，研究还表明细菌的毒力与鱼的体温也有关系。
Pathogenicity identification analysis in vitro indicated significant difference in pathogenicity among the strains.
通过离体接种对菌株致病力进行鉴定，发现各菌株间致病力差异显著。
The high variability in pathogenicity of M. grisea isolates makes the control and management of rice blast difficult.
由于病原菌致病性的高度分化，使得对稻瘟病很难控制和防治。
Objective To study the pathogenicity of GB virus C(GBV-C), and effect of coinfection with GBV-C on hepatitis B and C.
目的探讨GB病毒C（GBV -C）的致病性，以及混合感染GBV -C后对慢性乙型肝炎及慢性丙型肝炎预后的影响。
Studies suggest that the pathogenicity of ss is closely related with the carrying and expression of virulence-associated factors.
目前研究认为SS致病性与其相关毒力因子的携带与表达密切相关。
Modern molecular biological techniques have provided effective means for the study of the mechanisms of bacterial pathogenicity for plants.
现代分子生物学实验技术，为研究植物病原菌的致病机理提供了有效的手段。
Pathogen pathogenicity and host resistance are internal factors in deciding plant diseases. Wheat leaf rust is a kind of worldwide disease.
在病害三角关系中，病原物的致病性及寄主的抗病性是决定病害发生与否的内在因素。
There was also obvious difference in pathogenicity even if different hosts were inoculated by the same spore isolates of Venturia inaequalis.
同一菌株对不同寄主品种的致病力也存在较大差异。
There was also obvious difference in pathogenicity even if different hosts were inoculated by the same spore isolates of Venturia inaequalis.
同一菌株对不同寄主品种的致病力也存在较大差异。
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