病原菌

The specific PCR products of approximately 112bp in length was amplified from the other 10 strains of E.faecalis from lamb naturally infected with E.faecalis,lamb and mouse experimentally infected with E.faecalis by the PCR assay,but no any bands were amplified from Streptococcus equi subsp.equi,Streptococcus G,Streptococcus A,Staphylococcus aureus,Listeria monocytogenes from sheep,Mycoplasma ovipneumoniae and Brucella ovis.

应用该方法对分离的致羔羊脑炎粪肠球菌、由肠球菌导致发病或死亡羔羊脏器以及人工感染死亡小鼠的主要脏器进行扩增，均能得到特异性的DNA条带；对其他7种病原菌，马腺疫链球菌C群、G群链球菌、A群链球菌、金黄色葡萄球菌、羊源李氏杆菌、绵羊布氏杆菌、绵羊肺炎支原体不能扩增出特异的DNA条带。

Objective:To study the changes in positive rate of bacterial culture and drug sensitivity test of secretion specimens from the inferior palpebral conjunctival surface of neonate with acute bacterial conjunctivitis and to search for sensitive antibiotics.

目的 ：分析新生儿急性细菌性结膜炎的细菌培养结果，探讨其病原菌和耐药性的变迁，寻找有效的抗生素，为临床合理用药提供依据。

It is primarily dedicated to education and research on biology including Ecology and Evolution, Biomechanics and Comparative Physiology, Animal Sciences, Plant Sciences, Molecular and Cellular Biosciences, Reproductive Biology, Pathobiological Sciences.

主要致力于生物学科的教育与研究，学科领域包括生态学和进化、生物力学和比较生理学、动物科学、植物科学、分子和细胞生物学、生殖生物学、病原菌科学。

Caused by Peperomia tetraphylla southern blight. The disease samples showing typical symptom were collected and pathogen was isolated based on Koch's rule. The biological characteristics of the pathogen were conducted, and 5 fungicides were selected and used for controlling the disease.

方法］采集具有典型症状的病害标本，根据柯赫氏法则分离病原物，并分别测定不同的温度、湿度、pH值以及碳氮源和光照对该病菌菌丝生长和菌核萌发的影响，同时，测试5种杀菌剂在3种不同浓度下对病原菌的抑菌作用。

Survival was monitored over a 14-day period, and the ability of alveolar macrophages to phagocytize the pathogen in vivo was investigated after 1h.

生存率的监测定为14天一周期，肺泡巨噬细胞体内吞噬病原菌的能力观察开始于感染后1小时。

In addition to phagocytose pathogens,macrophages can also induce adaptive immunity to perform more specific responses.

巨噬细胞在人体的免疫反应当中扮演著十分重要的角色；其除了能吞噬病原菌之外，还能诱发后天免疫系统，产生更专一的免疫反应。

T is phenotypically similar to the systemic acquired resistance induced by the infection of pathogens, and with the same efficiency but without hypersensitive response and visible symptoms in plant as SAR, which is helpful to open a new way to develop and improve safer and environmentally friendly strategies for plant protection.

SR具有非特异性、广谱性和系统性，其在表型上与病原菌侵染激发的系统获得抗性相似，具有同样的效率；但在寄主植物上不发生过敏性坏死反应，无可见症状，为发展和改善更加安全而环境友好的植物保护策略开辟了新的思路。

We also studied their inhibition on H2O2,UV-induced hemolysis of RBC. Sodium paeonol sulfonate was used as keep-freshing agent in tomato storage and vitamin C content, brix, acidity, weight loss, membrane permeability, soluble protein content, SOD andPOD activity was determined. The results were as follows: Paeonol and sodiumpaeonol sulfonate had remarkably inhibitory effects on Xanthmonas oryzaepv.oryzicda,Pseudomonas solanacearum Smith, Phyllosticta mali Pril.et Delac.and Rhizoctonia solani Kuhn.

在生物学活性方面，检测了丹皮酚及丹皮酚磺酸钠对植物病原菌的抑制作用，测定了其清除超氧阴离子自由基(O_2~-)、羟自由基的活性及对过氧化氢(H_2O_2)和紫外线诱导红细胞溶血的影响，并用丹皮酚磺酸钠对樱桃番茄进行了保鲜研究，测定贮藏期间番茄的维生素C含量、糖度、酸度、失重率、膜透性、可溶性蛋白含量、超氧化物歧化物及过氧化物活性等。

The inhibitory rate of metabolites produced by TD103-UV-4 against RS was more than 80%, and the antibiotic production capacity increased by 47.1%, meanwhile, its metabolites had a strong inhibition against other phytopathogenic fungi, such as Botrytis cinerea.

其中菌株TD103-UV-4发酵液对立枯丝核菌的抑制率在80%以上，并且对灰葡萄孢菌等植物病原菌有较强的抑制作用，产抗生素能力比出发菌株提高了47.1%。

Result The phytopathogenic fungus Pythium aphanidermatum was isolated; 7 strains of antagonistic actinomycete, which had obvious inhibitory effects on Pythium aphanidermatum were screened. The inhibitory ring of No.8 strain was 13.3 mm, and reached 88.3% when cultivated for 120 h.

伽师甜瓜猝倒病的病原菌为瓜果腐霉；筛选出7株对瓜果腐霉具有显著拮抗性的生防放线菌，其中8号放线菌对瓜果腐霉的拮抗环宽度为13.3mm，其无菌发酵滤液对瓜果腐霉的抑菌率在培养120h时高达88.3%。

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。