查询词典 pathogenicity

Identification of extensive phenotypic information to 6 pare cultures and detection of the mol% G+C ratio of the DNA to representative strains, showed that the examined bacteria belonged to a new morphovar of Acinetobacter junii, and was designated as Acinetobacter junii Morphovar Ⅰ. In addition, serotype, antibiotic sensitivity and pathogenicity of isolates were studied, the results showed that the 6 strains have the same K-antigen and O-antigen, there arc no obvious differences in sensitivity and resistance to used 37 antimicrobial agents between strains, and have strong pathogenicity to experimental stone bonder and Bastard halibut.

经对6株纯培养菌在形态特征、理化特性等方面较系统的表观分类学指征鉴定及代表菌株DNA中G+C mol%的测定，表明为琼氏不动杆菌的一个新形态型并定名为琼氏不动杆菌形态型Ⅰ(Acinetobacter junii morphovar Ⅰ)；同时，对该菌进行了血清型、对抗菌类药物的敏感性及致病作用等方面的试验，初步表明此6株菌具有同种的表面及同种的菌体抗原，对供试37种抗菌类药物在不同菌株间的敏感及耐药无明显差异，对供试石鲽及牙鲆均具有较强的致病作用。

Mite infestation/occurrence ; acari/pathogenicity ; Nanchang ; Jiangxi ; China

螨感染/发生；螨类/致病力；南昌；江西；中国

Through all this test analyse Pathogenicity and Immunological status of ALV-J Inner Mongolia strain, the result showed the infected chickens began to have pathological change of Myelcytomatosis at 3-week: the main pathological changes of acidophile myelocyte were found in bone marrow and between cardiac muscle fibers,and there were many granules in the hyalotome.This kind of oncocyte proliferated in every tissue at different amount, but the cells that proliferated in bone marrow, cardiac muscle fiber, oarium were much more than other tissue, and they often developed neoplasma. At same condition,there were no abnormalty advent in control group, In immunological aspect: the increase of lymphokine and ANAE positive cells showed cell-mediated immunity was strengthend during antineoplastic infection; the emergence of ALV-J antibody of ELISA suggest there was humoral immunity exist at the same time.

结果显示：脾脏PCR检测结果表明1、2两实验组均有阳性病例出现，而对照组全部为阴性，说明实验鸡体内已有ALV-J内蒙株感染；接种病毒后3周龄开始出现骨髓细胞瘤病的病理变化：肝脏、脾脏有程度不同的肿大，镜下观察，骨髓内最早出现了与骨髓细胞相似、形态基本一致的大型圆形或椭圆形、胞核较大多为椭圆形、胞浆内含有大量嗜酸性圆形颗粒的髓细胞样瘤细胞增生，随后通过血流瘤细胞可转移到肝脏、心肌、卵巢或睾丸等组织并形成肿瘤性病灶，而对照组没有出现明显病变；免疫状态方面：以脾脏淋巴因子和ANAE阳性细胞增多说明细胞免疫在抗肿瘤感染过程中增强，ELISA检验实验鸡抗体出现阳性的结果表明同时也存在着体液免疫。

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。

Aerobe bacteria overgrowth and decreased lactobacillus of the small intestine will strengthen the pathogenicity of gut flora and disturb the absorption of nutrient, resulting in many symptoms related with alcohol. And these changes are result from complex factors not direct effect of acohol.

结论长期饮酒后小肠需氧菌过长、乳酸杆菌减少，增强了肠道细菌的致病性，影响肠腔营养物质的吸收，导致酒精相关的肠道病变的发生，且这种改变是诸多因素共同造成的而非酒精直接作用的结果。

The conditions for phytotoxin production of Alternaria alternate, the pathogen of wheat black point, and its pathogenicity were studied.

对小麦黑胚病菌链格孢产毒条件及其粗毒素的致病力进行了研究。

Examples are responses to light, oxidative stress, pathogenicity, wounding, anaerobiosis, thermal shock.

氧化应激，是由于ROS产生和消除之间的不平衡引起的，会导致人体多种疾病和细胞损伤。

The inheritance and variation of the biological characters including colony morphology, growth rate, homothallism, pathogenicity, metalaxyl-resistance and antheridium attachment mode of Phytophthora boehmeriae Sawada, the important homothallic Phytophthora species causing cotton and ramie blights in China, were reporteed in this paper.

本文首次对引致我国棉花、苧麻疫病的重要同宗配合疫霉种——苧麻疫霉的菌落形态、生长速率、同宗配合特性、致病力、对甲霜灵抗性以及雄器着生位置等生物学性状的遗传与变异进行了较系统的研究。

The result suggested that the variation was not associate with pathogenicity, but have some thing to do with cell culture or tissue appetency. The research is of high significance.

表明VP〓高变区大多数氨基酸的变异可能与病毒的致病性关系不密切，而与对细胞培养或组织的亲和性的关系更为密切。

MoRGF1 was highly identical in amino acids with its homologs from other filamentous ascomycete fungi. The gene eletion mutants displayed slower growth and obviously reduced conidiation, although with no change in pathogenicity when compared with their wild type strain.

结果表明Mgg_11178.6编码一个假定的Rho族小G蛋白鸟苷酸交换因子(MoRGF1)，与多种丝状子囊菌RhoGEF亲缘关系密切；基因敲除突变体表现为生长速度减慢，产孢量明显减少，但是致病力没有变化。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&