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大肠杆菌

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The main researches of this dissertation are summarized as follows:1. AFM study of different effects of natural and semisyntheticβ-lactam on the cell envelope of E.coli.

主要内容归纳如下:1、基于AFM大气氛中成像,研究天然与半合成内酰胺类抗生素对大肠杆菌形态的影响。

According to the analysis of thermogenic curves, shortened lag phase of bacteria growth, increased growth rate constant and maximum heat power were observed in the presence of Pr(superscript 3+) in low concentration and the results indicated that the growth of E. coli was promoted.

从生成的热谱图分析可以看出,低剂量的稀土离子Pr(上标 3+)的存在可以缩短细菌的停滞期,增加生长速率常数和最大放热功率,刺激大肠杆菌的生长。

Both 50% boiling water extract and 50% alcohol extract of Zingiber Coral- linum Hance do not inhibtte the five tested bactreial species:Staphy.aureus, Strept.hemolytieus,B.subtilis,E.coli and S.typhus.

本文报告对珊瑚姜抑制细菌和真菌作用的研究。结果表明珊瑚姜50%水煎剂和50%酒精浸液对金黄色葡萄球菌、乙型溶血性链球菌、枯草杆菌、大肠杆菌和伤寒杆菌都无抑制作用。

However, as in the case of gentamicin, no increase in luciferase activity was observed in E. coli/pLux4.

但与庆大霉素的研究结果相同,大肠杆菌/pLux4的荧光素酶活性没有增加。

Expression product had a 70kDa band and emitted yellow-green luminescence in the presence of luciferin.

云南窗萤荧光素酶在大肠杆菌中表达的条带大约70kDa,并且在有荧光素存在时发出黄绿色荧光。

Its cDNA had been cloned by RT-PCR. The results of comparison on sequence homology suggested that Luffin P1 may be derived from a vicilin like precursor which is a storage protein in the seeds of Luffa cylindrica.

本文利用3'RACE法克隆了它的cDNA,并构建了它的融合表达质粒pGEX-4T-S2,该质粒在大肠杆菌中获得了成功表达。

Recently, membrane-associated lymphotoxin expressed on T cells was shown to be a complex of LT-β, a true membrane protein, combined with a soluble secreted form of LT.

因此,克隆人LT cDNA并在大肠杆菌表达重组人LT,对于LT的开发利用和研究其功能都具有重要意义。

Most HDAC1 was located in the pellet or unbounded fraction of the cell lysate.

目的:对His/GST—HDAC1在大肠杆菌BL-21中的表达进行研究。

The antibacterial test in vitro was conducted with lysozyme of different sources and staphylococcus and E.

用不同来源的溶菌酶对金黄色葡萄球菌和大肠杆菌进行体外抑菌试验,并与常用抗生素进行比较。

Experiments were carried out to study minimum bactericidal concentration of 5 kinds of disinfectants (double fouthdiamine sait-iodine solution, compound aldehyde, chlorine-containing disinfectant; sodium hydroxide and potassium permanganate) against 5 kinds of pathogenic bacteria, and the above MBCs of disinfectants were 1: 600-1: 800,1:1000-1: 2500,1: 30000-1: 40000,0.01%-0.03% and 0.0008%-0.004%, respectively. It emphatically evaluated the sterilized efficacy of each kind of disinfectant to salmonella at different temperatures.

为了解目前猪场常用消毒剂对猪场常见肠道致病菌的杀菌作用,开展了5种猪场常用消毒剂(特碘、复合醛、消特灵、氢氧化纳和高锰酸钾)杀灭5种猪场常见肠道致病菌(沙门氏菌、大肠杆菌、奇异变形杆菌、弗氏拘橼酸杆菌和绿脓杆菌)最低浓度的试验,依次为l:600~l:800,1:1000~l:2500,l:30000~l:40000,0.01%~0.03%,

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

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