生物活性的

Biosurfactant is a high surface-active agent synthesized by microorganism. Compared with chemical surfactant, it has a low toxicity to ecological system and can be easily decomposed.

生物表面活性剂是由微生物产生的具有高表面活性的生物分子，相对于化学合成的表面活性剂，生物表面活性剂对生态系统的毒性较低，且可生物降解。

Biological activity of the compounds were studied and the result indicated that the compound 1,1'-ethyl dicarboxylate gem-dimethyl-cyclopropanediacylhydrazine has good activity against bean aphidsin at 250mg/L.

生物活性测定结果表明，在250mg/L的浓度下，化合物1，1'-二羧酸乙酯偕二甲基环丙烷双酰肼对蚕豆蚜虫有较好杀虫活性。

Objective To study the effects of hericium erinaceus polysacchrideson the cellular and humoral immune function in mice.

多糖类具有多种显著的生物活性和药理作用，如降血糖〔1〕，增加NK细胞活性〔2〕、抗衰老〔3〕等作用。

In this paper, turf peat, straw, wheat bran, Marc, bagasse as raw materials for bio-solid fermentation, culture feed yeast and mycoprotein, while humic acid associated biochemical and biological activity of enzymes is an ideal feed attitive of multi-enzyme protein feed, that provides a new resources of bio-protein feed for our country's livestock breeding and production of green food.

本文以草炭、秸秆、麸皮、果渣、蔗渣和酒糟等为原料的生物固体发酵，培养饲料酵母及菌体蛋白，同时伴生的生化腐植酸和生物活性酶是一种较理想的畜用多酶蛋白饲料添加剂，为我国畜牧生态养殖和绿色食品生产提供了新的生物蛋白饲料资源。

Myxobacteria have by far the largest prokaryotic genome and the most abundant secondary metabolites gene clusters. Our Myxobacteria genomics projects will help us understand their value in-depth.

粘细菌具有迄今为止最大的原核生物基因组、最丰富的生物活性次级代谢产物基因群，相关基因组计划的启动与实施将为我们深入研究生物进化、阐明粘细菌分化发育及其社会学行为、开发重要功能基因起到重要的推动作用。

Preliminary bioassay shows that three compounds have different pesticidal activities.

初步生物活性测试表明，其中三个化合物具有不同的杀虫活性。

The biological tests indicate that most of the compounds synthesized have herbicidal activity in a certain degree and several compounds show certain bactericidal activity. Further anti-ALS enzyme test shows that two kinds of novel phosphonic ureas have good anti-ALS enzyme activity.

对合成的部分化合物进行了初步的生物活性测定，所设计的大部分化合物都显示出一定的除草活性，有的具有一定的杀菌活性；对两类膦酰脲化合物进行了离体ALS酶抑制试验，结果表明它们是很好的ALS酶抑制剂，同磺酰脲相当，有希望作为另一类ALS酶抑制剂的先导化合物。

The biological activities of the new heterocycles synthesized were researched, and the results showed that some of them exhibited good fungicidal activities. The best one was compound 3f which exhibited 100% inhibition action against pyricularia oryzae and physalospora piricola in dosage of 5×10^(-5).

并探讨了所合成的新型杂环化合物的生物活性，结果表明部分化合物表现出良好的抑菌活性，其中3f的活性最好，在品质分数为5×10^(-5)浓度时，对稻瘟菌和苹果轮纹菌的抑制率均达到100%。

Through the determination of biological activities indoors, 40 strains antagonists are screened against Botrytis cinerea, Penicillium digitatum, Penicillium expansum, Alternaria kikuchiana and Physalospora piricola which are primary diseases on fruits.

经过室内生物活性测定，筛选得到40株对草莓灰霉病菌、柑橘绿霉病菌、苹果青霉病菌、梨黑斑病菌、梨轮纹病菌五种水果常见采后病害都有明显抑菌活性的细菌。

Background and Objective: The basic structure of salicylaldehyde amino acid Schiff base compounds includes a C=N chemical bond.

背景与目的：水杨醛氨基酸Schiff碱基本结构中含C＝N键，当基与金属离子配位后生物活性增强，表现出一定的抗癌、抑菌等活性。

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。