病原菌

Study on the activity of PAL、POD and SOD in the corn after inoculated pathogen showed that there were big differences between resistance and susceptible materials. The changs were more stabilization in resistance materials than in susceptible materials. There is a wave crest of activities in resistance materials, but no activity wave crest in the susceptible.

通过对抗、感品种接种病原菌后，其苯丙氨酸解氨酶、过氧化物酶和超氧化物歧化酶活性变化的研究表明，抗、感材料之间的变化大不相同，抗病材料中的各种酶活性变化都比较稳定，并且有活性波峰；而感病材料中各种酶活性变化都比较大，并且没有活性波峰。

In the current study, a series of cationic α-helical peptides of 20 a.a. were designed and synthesized based on four structural parameters, including charge, polar angle, hydrophobicity, and hydrophobic moment. Several methods were performed to describe the influence of these parameters on the antimicrobial and hemolytic activity, and on the permeabilizing effect on model membranes. The potential of these parameters to increase the antibacterial activity and to improve the prokaryotic selectivity is assessed.

本实验利用自行设计合成的人工抗菌胜肽当模型，固定长度为 20 个胺基酸，改变其电荷、极性角度、疏水性及疏水性矩等四种结构特性，并利用其对各种不同病原菌之抗菌活性及对兔子红血球细胞的溶血活性来研究其结构特性的改变对其抗菌活性、选择性及微脂体膜的渗透性之影响，以期望改变结构参数能增加抗菌活性及对原核的选择性。

Objective Pseudomonas aeruginosa is a significant pathogen of animals and human beings.

目的绿脓杆菌是重要的人畜共患病原菌。

In this dissertation,Psoralea corylifolia L.was selected as plant material through antifungal activity screening.

通过对植物病原菌具有抑菌活性植物的筛选，得到广谱、高效的目标植物-补骨脂(Psoralea corylifolia L。)。

Measure the inhibition by agar piece method. After puddling treatment raise seedlings and dipping root pot culture test, get the growth promoting effect to the strawberry and measure the strawberry leaves and root's PPO activity. so as to get the induced endurance.

采用琼脂块法、拌土育苗和蘸根盆栽生物试验及PPO活性测定法研究供试放线菌对病原菌的皿内拮抗作用、对草莓的促生作用及诱导抗性。

The three actinomyces strains all have inhibition to the five strawberry pathogenetic fungi. After puddling treatment raise seedlings and dipping root pot culture test, they can improve each part's biomass of the strawberry plant and make the strawberry produce induced endurance.

由此得出结论：供试生防菌在皿内能抑制草莓常见土传病病原菌生长；在拌土育苗和蘸根盆栽条件下均能显著促进草莓根系发育及茎叶生长，并使草莓产生诱导抗性。

Streptococcus pneumoniae is the most common cause of bacterial pneumonia (17%- 28%) and empyema, which causes pockets of purulence around the lungs.

在美国，肺炎是导致儿童住院的头号原因；而肺炎链球菌又是细菌性肺炎（17-%28%）与肺脓疡最常见的病原菌，造成肺部化脓。

The experimental results showed that the crude toxin of Phytophthora capsici could inhibit the germination of seeds, the growth of seedlings, and the growth of pepper radicel and the callus of pepper extremely.

结果表明，粗毒素能使辣椒叶片产生与疫病病原菌侵染类似的水渍状褐腐斑，抑制辣椒种子的发芽率，抑制辣椒幼苗和胚根的生长，抑制辣椒愈伤组织生长，并且粗毒素的这些抑制作用随着其浓度的升高而变强，不同品种所得出的实验结果一致。

The result showed that at the concentration 0.01 g/mL,the antifungal rate of 27 MPE(for example,Soianum nigrum,Ranunculus ternatus and Eriobotrya iaponica)was more than 50% against at least one tested fungi.

结果表明：在提取物供试质量浓度为0.01 g/mL条件下，龙葵、猫爪草、枇杷叶等27种中草药提取物对至少一种病原真菌的菌丝生长抑制率超过50%，有6种提取物对2种病原菌抑制率均达50%以上。

The conductivity and respire intensity of mycelium treated by T. aureoviride metabolite were also changed. Changes of mycelium and cell wall of the pathogen were observed through optics microscope and TEM.

经黄绿木霉菌代谢产物处理的菌丝电导率与呼吸强度均发生变化，在光学显微镜与透射电镜下观察到病原菌菌丝体发生变化，细胞壁有所改变。

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。