查询词典 pathogenicity

The resources and pathogenicity of entomogenous fungi in Lishan National Nature Reserve in the southern east of Shanxi Province were studied.

对地处山西东南部的历山国家级自然保护区的虫生真菌种类资源及其杀虫活性作了初步的研究。

The capsule of Erysipelothrix rhusiopathiae may be important in the pathogenicity of the disease.

猪丹毒杆菌的荚膜对於疾病的致病性扮演著重要角色，是导致本菌发病的因子。

Lepidoptera ; eucleidae caterpillar ; pathogenicity ; experimental study ; dermatitis

鳞翅目；刺蛾幼虫；致病性；实验研究；皮炎

Therefore, Alternaria is the main pathogen of cotton leaf spot. 2. Pathogenicity test of the above-mentioned 26 strains showed that they are the cotton leaf spot pathogens as the eumycetes isolated from the Invasived plants are the same with the pathogenetic strains.

根据科赫氏法则从接种发病植株叶片上分离病菌，其形态特征与从自然发病植株上分离的相同，证实这些菌株就是棉花叶斑病的致病菌，其中链格孢属是棉花叶斑病的主要致病菌属 3。

Considering the importance of oxalic acid in pathogenicity, germin, an oxolate oxidase, was used in S. sclerotiorum resistance of crops breeding study.

鉴于草酸在致病中的重要作用，我们试图利用具有草酸氧化酶活性的germin，从分解草酸入手进行抗菌核病的研究。

Four field strains of infectious bronchitis viruswere isolated from chicken kidney, trachea and lung of the young layer flocks in some regions of Shaanxi province. Biological characterizations of the virus were investigated by virus pathogenicity to chicken embryo and healthy chickens, hemagglutination test, hemagglutination inhibition test, dwarfing embryonated chicken eggs, electron microscopy and reverse transcription polymerase chain reaction. It demonstrated that allantoic fluid of each passage virus could hemagglutinate chicken red blood cells by treatment with 1% trypsin. The standard positive serum to IBV could inhibited the hemagglutination. The isolates could make respiratory and kidney diseases in chickens.

采集陕西省宝鸡市、扶风县、兴平市和榆林市等地鸡场疑似传染性支气管炎发病鸡病料，通过9～11 日龄非免疫鸡胚进行了病毒的实验室分离和传代，并对分离毒株进行了病毒的血凝性、血凝抑制性、致病性、鸡胚矮小化、电镜特征等生物学特性鉴定，结果表明，4 株分离株经1%胰酶处理后的各代病毒尿囊液均可凝集鸡红细胞，标准阳性血清可特异性的抑制其凝集性，回归试验可复制出与自然发病相同的病例，病毒传代物有明显的致鸡胚矮小化作用，透射电镜下可见有近似球形、直径100 nm左右的冠状病毒粒子，将分离鉴定的4 株IBV 定名为BJ-04、FF-04、XP-03 和YL-04。

Pathogenicty and immune prophylaxis of cag pathogenicity island gene knockout homogenic mutants［J］.

胃型上皮Fas表达的调节：幽门螺杆菌致病的自身免疫机制之一［J］。

Pathogenicty and immune prophylaxis of cag pathogenicity island gene knockout homogenic mutants［J］.

胃型上皮Fas表达的调节摘要：幽门螺杆菌致病的自身免疫机制之一［J］。

Cases of tumor was performed by immunohistrochemical staining EMA and Vim were positive. 12 cases were hyperplasic lesions of mesothelial cell. Induced rats' MPM had a higher similarity with human' s MPM, especially in pathogenicity, positions, histological type and biological behavior of invasion and metastesis.

结果 实验组发生胸膜间皮瘤66例，诱发率71.74%，大体形态肉眼结节型间皮瘤较多见（72.73%）组织形态可见上皮型、梭形细胞型及混合型双向多潜能分化，13例免疫组化EMA及Vim双向阳性，并可见12例胸膜间皮细胞增生性病变，诱发瘤在病因，发病部位，组织形态学以及浸润转移的生物学行为方面与人体间皮瘤极为相似。

DNA insertional mutagenesis is one of the most effective ways to identify pathogenicity genes of phytopathogenic fungi.

DNA插入突变是标记、分离功能基因的有效途径之一，ATMT是丝状真菌遗传转化的一个的新的技术，具有转化效率高、成本低，操作方便和重复性好多重优点。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。