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1)  GlnB-mutant
GlnB-突变株
2)  mutant [英]['mju:tənt]  [美]['mjutənt]
突变株
1.
A Preliminary Study on γ-Linonenic Acid Fermentation by Mortierella isabellina Mutant MI-33;
深黄被孢霉突变株MI-33 γ-亚麻酸发酵的初步研究
2.
Study on fermentation of Mortierella isabellina mutant MI-33 overproducing gamma-linonenic acid;
过量积累γ-亚麻酸的深黄被孢霉突变株MI-33的发酵研究
3.
Analysis of glucoamylase components secreted from mutant of Aspergillus niger;
黑曲霉突变株糖化酶组分分析
3)  mutant strain
突变菌株
1.
Acidithiobacillus ferrooxidans was treated by UV to obtain a mutant strain which has a high conversion efficiency of SO32-and Fe2+.
利用紫外线对氧化亚铁硫杆菌(Acidithiobacillus ferrooxidans)进行诱变处理,获得了对SO32-和Fe2+具有较高转化效率的突变菌株。
2.
The fermentation conditions influencing laccase synthesis in shake flask by Neurospora crassa mutant strain including ventilatory capacity,culture temperature,methanol concentration and Cu2+ concentration etc.
研究了影响粗糙脉孢菌突变菌株合成漆酶的一些摇瓶发酵条件,包括通气量、培养温度、甲醇浓度、Cu2+浓度等。
3.
So it\'s has great significance to construct the mutant storehouse and slecte the toxicity weak Hps mutant strain for developing the genetic engineering attenuated vaccine.
如构建出突变体库,从中筛选出毒力减弱的副猪嗜血杆菌突变菌株,对研制出基因工程弱毒活疫苗具有重要意义。
4)  mutant strain
突变株
1.
Ultraviolet radiation mutagenesis of Saccharomyces cerevisiae and properties of mutant strains
酿酒酵母菌的紫外诱变及其突变株的性能测定
2.
A thermo stable α-Amylase producer strain(Bacilus Licheniformis)was selected out from a lot of mutant strain by using protoplast preparation and mutagenic treatment with N-methyl-N'-nitrosoguanidine(NTG).
以一株产耐高温α-淀粉酶菌株(地衣芽孢杆菌)为出发菌株,经过原生质体制备后由NTG(亚硝基胍)药物诱变,从大量突变株中筛选获得一株高产、稳定的耐高温α-淀粉酶产生菌。
3.
After the BALB/c mice were iooculated venously or orally with the attenuated mutant strain yzuLM1-2 or wild strain yzuLM4,bacterial amounts in the spleen and liver were measured.
分别用减毒突变株yzuLM1-2和野生型菌株yzuLM4给BALB/c小鼠静脉注射或灌服,并对脏器中LM的分布动态进行测定。
5)  mutants
突变株
1.
Study on Space Flight-mutants of Monascus Purpureus Using Random Amplified Polymorphic DNA.;
搭载后红曲霉菌突变株的染色体DNA随机扩增多态性分析研究
2.
Screening and identification of ura5 mutants of Cryptoccocus neoformans capsule-deficient strain CAP64;
新生隐球菌CAP64荚膜缺陷株ura5突变株的筛选和鉴定
3.
200 mutants were selected by the isolation on the milk protein plates from 2341 survival.
5%硫酸二乙酯复合诱变,结合牛奶蛋白平板从2341株存活菌中初筛得到200株诱变菌株,经摇瓶测定纤溶酶活性进行复筛得到7株生产性能较出发菌株显著提高的突变株,它们的纤溶酶活性超过2000UK。
6)  mutant [英]['mju:tənt]  [美]['mjutənt]
突变菌株
1.
To improve the productivity of Aspergillus usaanii ,60Co γ radiation was used in the work and a mutant Aspergillus usaanii -C33 was obtained.
5%的突变菌株AU—C33。
2.
On basis of screening labels of temperature-sensitivity of naphthalene metabolism and erythromycin resistance,the high-yield mutant Y57 was screened and obtained after the wild type strain BCC933 was treated with chemical and physical reagents such as NTG,5-BU and UV as well as acridine orange integrated with UV.
根据菌株利用萘为碳源与冠毒素生物合成的调控均受低温影响的特点,以及菌株对红霉素耐药机制受细胞膜孔蛋白和外排泵影响的特性,分别以菌株对萘代谢的温度敏感性及对红霉素抗性为筛选标志,依次采用亚硝基胍、5-溴尿嘧啶、紫外线、吖啶橙与紫外线混合等诱变方式,经系列推理选育,获得产冠毒素能力为100μg/mL的突变菌株Y57,比野生菌株BCC933产量提高7。
3.
Biosorption experiments were performed using the mutant strain as adsorbent forCd~(2+) and Cr~(6+).
为获得吸附Cd~(2+)和Cr~(6+)效率高及耐受性好的草分枝杆菌菌株,本文利用紫外诱变技术诱变草分枝杆菌,并以草分枝杆菌突变菌株作为吸附剂,研究该突变菌株对Cd~(2+)和Cr~(6+)的吸附特性,并对其吸附机理进行初步探讨。
补充资料:调节突变株
分子式:
CAS号:

性质: 因操纵子的调节基因或操纵基因发生突变而使结构基因所编码的酶的合成调节方式发生改变的突变类型。以大肠杆菌为例:当乳糖操纵子的调节基因发生i-突变,则阻遏物失去活性,β-半乳糖苷酶等的合成从诱导型变为组成型,若发生is突变,则阻遏物不能与诱导物相结合而始终结合在操纵基因上,酶的合成变为超阻遏型;如果操纵基因发生突变,酶的合成变为组成型。当色氨酸操纵子的调节基因发生突变,是阻遏物蛋白失去活性,即使存在色氨酸也不能与它结合成为完全阻遏物,因此无法结合到操纵基因上,酶的合成不受色氨酸阻遏;如果操纵基因发生突变,酶合成也不受色氨酸阻遏。阿拉伯糖操纵与调节基因C所编码的蛋白质与诱导物结合时具有激活作用,而不与诱导物结合时具有阻遏作用。当发生C突变,则其产物不需与诱导物结合便成为激活蛋白,酶合成由诱导型变为组成型,若发生C-缺失突变,则酶合成变为超阻遏型。调节突变株在代谢调节的研究和育种中有广泛的应用。

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