3. The pathogenicity of hypha and spore was weakened.
菌丝和分生孢子致病性减弱。
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4. There was no correlation between pathogenicity and colours of colony.
菌落颜色与致病性无明显相关。
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5. 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。
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6. Pathogenicity is the important factor that mycoplasma infection need treatment.
具有致病性，是支原体感染需要治疗的重要条件。
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7. 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。
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8. 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。
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9. 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。
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10. 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。
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11. 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。
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12. 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。
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13. 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。
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14. 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。
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15. The conclusion indicted that the pathogenicity could be improved through mutating by using the target insect.
说明利用靶标昆虫的诱变来提高病原菌的致病力的方法是可行的。
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16. 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。
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17. 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。
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18. All though the morbidity rates of the two ways were same, there was much different in pathogenicity and virus isolation.
尽管两种感染途径引起试验鸡的发病率相同，但在组织器管的致病性和病毒分离方面存在明显差异。
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19. This paper reported symptoms of discolored rice grains, species and their pathogenicity on rice caused by the Curvularia.
本文报道了弯孢菌引起的变色米的症状，弯孢苗的种类及其对水稻的致病性。
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20. 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。
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21. This paper dealed with the development and pathogenicity of Histomonas meleagridis in the liver and kidney of naturally infected peacocks.
本文报道了火鸡组织滴虫在孔雀肝脏和肾脏中的发育及其致病作用。
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22. 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。
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23. Five isolates which included the three above types and isolated from different hosts were choosed for the test of culture and pathogenicity.
研究选取了包括以上三种类型及不同寄主来源的五个代表菌株分别进行了培养条件及致病性试验。
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24. The virus was analyzed by the animal pathogenicity test, virus attenuation, protection of the attenuated virus and virulence return experiment.
对分离的痘病毒进行动物致病性试验、病毒分离传代和致弱试验、致弱毒保护力试验和返强试验。
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25. Objective in order to isolate and purify an exotoxin of Streptococcus mitis which can cause toxic shock syndrome and investigate its pathogenicity.
目的分离与纯化致中毒性休克综合征缓症链球菌外毒素蛋白，并对其致病性进行初步研究。
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26. Objective To explore the state of extrahepatic hepatitis C virus (HCV) infection, viral pathogenicity and its significance in hepatitis C patients.
目的探讨丙型肝炎患者肝外组织丙型肝炎病毒（HCV）感染状态、致病性及其意义。
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27. Objective to study pathogenicity and clinical significance of candida albicans in respiratory tract specimen of patients with pulmonary tuberculosis.
目的了解肺结核患者呼吸道标本中白色念珠菌的致病性并评价其分离的临床意义。
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28. The results showed that there were obvious differences in the pathogenicity to mulberry seedlings between the strains of P. syringae p. v. mori tested.
结果表明：桑疫病菌不同菌株对桑苗的致病性有明显差异，菌株对桑苗的致病性与其地区来源无明显相关性。
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29. Objective to study the change of levels of plasma heat stress protein 70 (HSP70) and cytokine and their interrelationship in pathogenicity of heat apoplexy.
30. Objective to study the change of levels of plasma heat stress protein 70 (HSP70) and cytokine and their interrelationship in pathogenicity of heat apoplexy.
The known mycoplasmas categories separated from goats and sheep were listed, and the pathogenicity and effect during diseases happening of these mycoplasmases were summarized. 摘要列举目前已知从绵羊和山羊上分离出的霉形体种类，并概述这些霉形体的病原性和在疾病发生过程中的作用。
Its pathogenicity was markedly coincident with inoculated dosage. 其致病性与剂量有明显的相关性。
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。
