致病

The excrement and the excrement polluted water carry a lot of pathogens of them, including the diseaseful virus and worm eggs, which threaten seriously the health of the habitants.

粪便中和被粪便污染的饮用水中，含有多种肠道传染病和寄生虫病的病原体，包括致病的病毒和虫卵，严重威胁农民的身体健康。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

Barnyard grass, Echinochloa crus-galli, is one of the notorious weeds worldwide. To explore the potential of Alternaria augustiovoidea strain AAEC05-3 as mycoherbicide to control barnyard grass, the effect of inoculum potential and spray volume on the pathogenicity of strain AAEC05-3 to barnyard grass and host specificity of strain were studied using pot experiment.

为了确定稗草生防菌狭卵链格孢Alternaria augustiovoidea菌株AAEC05-3防除稗草的潜力，研究了其孢子接种浓度和喷液量对该菌株致病力的影响及菌株的寄主专化性。

ObjectiveThe aim of patch test was to precisely detect the etiological factors for dermatitis and eczematoid diseases and therefore right methods against them would be provided.

通过斑贴试验能较为准确地确定皮炎湿疹类疾病的致病因素，提供正确的防治方法。

Adult Cyclops, with body length of one to several millimeters, may be caught by naked eye to bring consumers unsanitary sense and may become disease transmission medium as the host of pathogenic parasite, like schistosome and eelworm, to threaten human health. So Cyclops needed be effectively removed to ensure drinking water security.

剑水蚤类浮游动物在用户水中出现，不仅违反了生活饮用水卫生标准中对感官性状指标的规定，给用户带来了不良的感官影响（剑水蚤体长可达1～几个mm，肉眼可见），容易引起用户对水质信心的下降与恐慌，更为重要的是大多数剑水蚤是诸如血吸虫、线虫等水中致病生物的中间宿主，从而成为传播疾病的一个重要媒介，给人们的用水安全问题带来了很大的威胁。

The major pathogens are 7 different species of Eimeria with high patbogcnity, especially Eimeria tenella.

其病原主要为艾美尔属的7种球虫，其中以柔嫩艾美尔球虫的致病力最强。

After the viruses were inoculated blindly into 9-11 days old chicken embryonated egg through five to six passages, animal artificial infection test and vaccination protection test were done.

用动物回归和免疫保护试验进行了毒株的致病性研究，用气管环组织培养对病毒进行理化特征测定、毒价测定与中和试验。

There were few studies on the causative gene of PCOS in our country. We chose the candidate gene associated with androgen receptor gene to study, considering the endocrinal characteristics such as hyperandrogenism.

本课题针对PCOS常见的高雄激素血症的内分泌特征，选择雄激素受体基因进行研究，旨在探讨AR基因微卫星CAG多态性与PCOS发病及临床特征的关系，寻找PCOS的致病基因，以期为PCOS的预防和治疗提供理论基础。

The serotypes of 16 pathogenic salmonella stains isolated from different swine farms of Sichuan proveince were detected,and there were 6 strains of Salmonella typhimurium,5 strains of Salmonella choleraesuis ,3 strains of Salmonella enteritidis and 2 strains of Salmonella derby.

中文摘要：本研究应用标准单因子血清，对四川不同地区规模化猪场分离的16株猪源致病性沙门氏菌进行了血清型鉴定，鉴定出鼠伤寒沙门氏菌(O：1，4，5，12；H1：i；H2：1，2)6株、猪霍乱沙门氏菌(O：6，7；H1：c；H2：1，5)5株、肠炎沙门氏菌(O：1，9，12；H1：g，m；H2：-)3株、德尔俾沙门氏菌(O：1，4，[5]，12；H1：f，g；H2：[1，2])2株。

Screening toxic proteins to M alternatus from entomogenous fungi is the base of control pest. It will reveal the mechanism how the fungi infect their host from the view of biochemistry and molecular biology, and base for culture trees of anti-longhorn beetle.

本研究是从虫生真菌中寻找对松墨天牛有毒杀作用的蛋白，该研究可从生物化学和分子生物学的角度揭示虫生真菌的致病机理，同时为培育抗天牛苗木奠定基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。