抑制细菌的

Twenty two strains(14 bacteria and 8 actinomyces strains) of antagonistic microorganisms against Fulvia fulva were isolated from vegetable field soil.

从蔬菜地田间土壤中筛选出对番茄叶霉病具拮抗作用的22株菌株，其中14株细菌，8株放线菌。孢子萌发抑制试验表明，细菌X14菌株和放线菌F15菌株的发酵液及其离心后上清液对番茄叶霉病菌孢子萌发抑制率均达100%。

The results showed that PSB and organic fertilizer could promote the growth of actinomyces, heterotroph bacteria, azotobbacter, ammonifying bacteria and nitrobacteria significantly, and restrain the growth of denitrifying bacteria in the soils.

结果表明，光合细菌和有机肥显著促进土壤中放线菌、异养细菌、固氮菌、氨化细菌和硝化细菌的生长，而抑制反硝化细菌数量。

S extract had an inhibition effect against Sphaerotheca fuligenea,The inhibition rate was 100% when extract concentration was 20mg/mL and the inhibition rate got to 67.66% even at the concentration of 2.5mg/mL. The extract of E. humifusa had different preventive effects against four strains of S. fuliginea from four districts in Shanghai. The preventive effects on the Qibao and Baoshan were better than those of Nanhui and Qingpu. The microorganism inhibition experiment by filter papers indicated that the extract of E. humifusa had higher inhibition effect against bacteria than on pathogenic fungus. Diameters of the zone of inhibition of salmonellas, Echerichia coli and Staphylococcus aureus were 15.77mm, 12.27mm and 10.53mm respectively. The extract of E. humifusa had a certain effect against Colletotrichum lagenarium, Botrytis cinerea, Rhizoctomia solan and Pyricularia oryza but no effect against Helminthosporium maydis and Gibberella zea. The 4 cation exchange resins and ethanol deposition were used to isolate the active fractions from supernate after alkali deposition.

提取液对黄瓜白粉病菌体外分生孢子萌发抑制实验表明地锦提取液对黄瓜白粉病菌分生孢子的萌发有很好的抑制作用，抑制率随着地锦提取液浓度的增大而增高，当浓度为20mg/mL时，抑制率达到100%，即使在浓度为2.5mg/mL时，抑制率也达到了67.66%；室内盆栽苗期预防性实验表明了地锦提取液对上海4个不同地区的黄瓜白粉病菌均具有不同程度的抑制效果，对七宝和宝山地区的菌株抑制效果优于南汇和青浦地区的菌株；用滤纸片法测定了地锦提取液的抑菌谱，实验结果表明地锦提取液对供试的4种植物病原真菌：黄瓜炭疽病菌、黄瓜灰霉病菌、水稻纹枯病菌和水稻稻瘟病菌均具有一定的抑制效果，而对玉米小斑病菌和小麦赤霉病菌没有抑制效果，对供试的3种人类致病细菌沙门氏菌、大肠杆菌和金黄色葡萄球菌均具有很好抑菌效果，抑菌圈直径分别为：15.77mm， 12.27mm和10.53mm。

The ferment product of strains JF and Al with a broad spectrum of antimicrobial activity, against one or more sensitive microbes, such as Staphylococcus epidermidis, Enterobacter aerogenes, Escherichia coli and Typhoid bacillus etc, were screened out using the filter paper assay, strain C6 have inhibiting effects on VSMC proliferation.

结果：从槲寄生中分离到JF、A1、G6等11株内生真菌；G6对牛主动脉平滑肌细胞增殖有抑制作用；JF、A1发酵产物具有较广语的抗菌活性，对革兰氏阳性细菌如表皮葡萄球菌，革兰氏阴性细菌如产气肠杆菌、大肠杆菌、伤寒杆菌等均具有较强的抑制作用。

We also studied the effect of several solutions for producing zoosporangium in Artificial culture condition, the result shows the hyphea culture with 0.1% KNO3 produced the most quantity of zoosporangiums.

将这8株内生细菌与烟草黑胫病菌共培，进一步测定拮抗效果结果显示YN-55、NN-3、YN-4和YN-10 4株拮抗效果最好，均在66％以上，并且这4种细菌均对孢子囊的产生有较强的抑制作用，而菌株发酵液对孢子囊的产生的抑制作用不明显。

By comparing with the curves of classical antibiotics in Doskochilova system, the antibiotic type of fermentation broths was identified. The antimicrobial tests showed, the inhibition rate of alt the twenty strains were considerably and ten of them reached 80% when the fermentation broths was diluted by 10 times. It showed strongest inhibition effect against Erwinia carotorora (17.75 mm). Organize method tests showed that inhibition rate of fermentation broths of the strain HJ1-2 to Sclerotinia sclerotiorum and Botrytis cinerea was 100% and 71.39%, respectively.

发酵液的抑菌活性测定结果表明，放线菌HJ1-2菌株发酵液对20种供试病原真菌均具有不同程度抑制作用，其10倍稀释液对其中10种病原真菌菌丝生长的抑制率达到80%以上；供试7种细菌中放线菌HJ1-2菌株发酵液对白菜软腐病菌的抑制作用最强，抑菌圈直径为17.75mn；放线菌HJ1-2菌株发酵液对油菜菌核病和番茄灰霉病的抑制率分别为100和71.39%。

By inoculated to tobacco plants, six strains could be re-isolated from the inoculated plants, indicating that they were endophytic bacteria in tobacco. Culture these eight bacteria and Phytophthora parasitica var. nicotianae together, the result showed four endophytic bacteria YN-55, NN-3, YN-4 and YN-10 have the best antagonistic effects.

将这8株内生细菌与烟草黑胫病菌共培，进一步测定拮抗效果结果显示YN-55、NN-3、YN-4和YN-10 4株拮抗效果最好，均在66％以上，并且这4种细菌均对孢子囊的产生有较强的抑制作用，而菌株发酵液对孢子囊的产生的抑制作用不明显。

Results The compositions of 28 Chinese herbs can inhibit the growth of 5 bacteria in different levels, but the effects on other 3 bacteria are not obvious. Quercetin and usnic acid have better effects on 5 bacteria than other 26 herbs compositions, with MIC 0.03125～0.125mg/ml and 0.0156～0.0625mg/ml.

结果 28种中药有效成分对3种牙周细菌抑制作用不明显，对另5种口腔常见细菌有一定的抑制作用，其中松萝酸和槲皮素有较强的抑菌作用，MIC值分别在0.0156～0.0625mg/ml和0.3125～0.125mg/ml之间。

After insecticide carbofuran was applied to soil, the results were compared with control soil: The number of soil aerobic bacteria actinomyces, ammonifying bacteria and mold was strongly restrained, and the restrainratio and pesticide concentration have positive correlation.

土壤中添加杀虫剂呋喃丹后，与未添加农药的对照土壤相比，土壤中好氧性细菌、放线菌、氨化细菌、霉菌均受到较强的抑制，且抑制率与施药浓度呈正相关性。

The results show that activation nutrition St-12 could activate the beneficial bacteria preferably, and restrain the harmful bacteria including sulfate reducing bacteria, iron bacteria and sulfer bacteria for oil recovery to a certain degree.

结果表明，激活剂配方St-12能较好地刺激有益内源菌群落的生长，且对硫酸盐还原菌、铁细菌及硫细菌等对采油不利的细菌起到了一定的抑制作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。