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微生物

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Definition A pharmacologically active compound produced by growing microorganisms which kill or inhibit growth of other microorganisms.

通过培育某些可杀灭其它微生物或可抑制其它微生物微生物而产生的具有药理活性的一类化合物。

A pharmacologically active compound produced by growing microorganisms which kill or inhibit growth of other microorganisms.

通过培育某些可杀灭其它微生物或可抑制其它微生物微生物而产生的具有药理活性的一类化合物。

The purpose of this study is to screen microorganisms with growth inhibition against plant fungal pathogens. The plate-dilution method was used to isolate the bacteria from salt marshes at Dafeng, Jiangsu. The antifungal activity of the bacterial broth filtrates against 5 phytopathogens was determined using mycelial disk method. The antifungal compositions of four active bacteria were analyzed primarily with chromatography techniques. Two hundred and thirty-five aerobic (92) and anaerobic (143) bacterial strains have been isolated from the coast salt marsh and sixty-five strains, of which 39 are aerobic and 26 are anaerobic showed greater than 30% of inhibition rate against the growth of at least one of the phytopathogenic fungi on petri dish.

为了开发对植物病原真菌生长有抑制作用的药源微生物,本实验采用平板稀释法从江苏大丰盐沼湿地土壤中分离微生物,并通过菌丝块法检测这些微生物代谢产物对5种植物病原真菌生长的抑制活性,进而利用柱层析分析其活性成分;结果共分离得到235株细菌,其中好氧细菌92株,厌氧细菌143株;体外活性测试结果显示有65株至少对1种测试植物病原真菌的抑制率在30%以上,其中好氧菌39株,厌氧菌26株。

The results showed that, Cd6+ stress the Pistia stratiotes root of of the microbes with the impact of microbial flora or physiological groups, training time and the concentration of Cd6+ vary.

结果表明,Cd6+对大薸根系微生物的影响随微生物区系或生理类群、培养时间和 Cd6+浓度的不同而不同;总体来讲,Cd6+对各微生物指标表现出随浓度的变化没有连续性。

In order to fully know the alteration of microbial community in chick, the influence of different kinds of pathogenic microorganism on chick, and the difference of intestinal flora, in this paper analysed the structure of intestinal flora of pullorum disease group, newcastle disease group and healthy group by ERIC-PCR based fingerprint on Molecular Ecology.

中文摘要:为了全面掌握鸡肠道微生物群落结构变化,人工感染病原微生物对雏鸡肠道菌群结构的影响以及不同类型病原微生物对菌群的影响是否存在差异,本文应用ERIC-PCR指纹图谱技术,对鸡白痢、新城疫感染雏鸡以及健康鸡的肠道菌群结构特征进行了分子生态学研究。

Sodium chloride is useful in a fermentation proce of foods by limiting the growth of putrefactive organisms and by inhibiting the growth of large numbers of other organisms.

虽然食物保藏体系一般都抑制微生物生长,但不是所有的微生物都是有害的。事实上,有些微生物常常被用来保藏食物。

In this paper, the spoilage microbes that caused tuber mustard corrupted were isolated and identified. The characteristics of putrescent microbes were studied. Also, microorganisms of some tuber mustard in the market at Hangzhou were analyzed.

本文以榨菜为原料,分离并鉴定了引起榨菜变质的腐败微生物,完成了对腐败微生物特性的研究,还对杭州市场上部分榨菜的微生物区系进行了分析。

The results of research on community structure through the response of microbes in mangrove swamp under PAHs stress revealed that different changes of microbial community structure had occurred in different concentrations of Phe, Pyr, Flu, Bap and M-PAHs.

不同浓度的PAHs对红树林沉积物中的微生物群落结构的影响不同,较高浓度的PAHs对微生物群落结构的影响也较大,同时在高浓度的PAHs胁迫下,微生物群落结构发生改变的响应时间也较短。

Based on the strategy to explore microbial resource from natural environment and the fact that the majority(about 99%) of microbes in diverse environments are unculturable till now by using traditional microbiological methods,scientists try hardrounding the bottleneck to set up novel techniques to culture and study those uncultured microorganism s.

微生物筛选过程中,99%的未培养微生物是用传统的方法无法分离的,这极大地限制了微生物生态领域中的多样性和利用生物资源等方面的研究。

The artifical fillers are hung under the plant floating bed then the remedial system combined by plant and microorganism came into being. The remedial effectiveness of the system was visibly better than that of the phytoremediation alone. So when the temperature is higher the remedial system combined by plant and microorganism is the preferable remedial technique to remedy contaminated water. In autumnal end and winterly outset, the temperature is lower, the plants begin to fade and die, and the plant must be harvested lest the relict of plant should contaminate water again. At the same time the technique combined by immobilized nitrogen cycling bacteria and microorganism which already existed in the water was used to remedy contaminated water.

将人工填料悬挂于植物浮床下,形成植物和微生物相结合的修复系统,其修复效果明显好于单独植物修复技术,因此温度较高时用植物和微生物共同结合的生物修复技术修复水体污染;秋末冬初温度较低时,植物开始死亡,必须将植物收割,以免植物残体造成二次污染,此时用固定化氮循环细菌和水体中原有微生物相结合的技术来修复水体的污染。

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