您要查找的是不是:
- Comparing with parent strain S. cereviae, fusant SPSC is of fast flocculating. cereviae具有强的自身絮凝能力。
- The acetylene reduction activity and its nodule structure were no difference from the nodule formed by parent strain. 接受了农药降解质粒的接合子保持了根瘤菌的共生性状、乙炔还原活性,所形成的根瘤结构与亲本株没有明显差别。
- Rhizobium strain A106L (a member of the A106 series) nodulating Astra-galus sinicus was taken as parent strain. 以紫云英根瘤菌A106L(A106菌系的一株)为出发菌株,在正常培养条件下得到的170个分离系中,有19个分离系对紫云英无结瘤能力;
- The virulence of both mutants, as represented by median lethal dose (LD50), was not significantly different from that of the parental strain. 因此,细胞溶解毒素可能不是主要的致死因子,也不是创伤弧菌造成细胞毒杀作用的唯一因素。
- A mutant strain ZM-8 with high activity of cellulase was selected from parent strain of Aspergillus niger by treatment of space conditions. 对航空诱变的黑曲霉(Aspergillus niger)进行筛选,得到纤维素酶高产突变株ZM-8。
- Results: shaking flask titer productivity of 259# strain obtained by selective cultivation was higher than parent strain. 结果:选育得到的259%23菌株摇瓶效价比出发菌株提高,传代三代后仍稳定。
- Then the strain (M3-20), which has 245. 56mg/kg riboflavin, was got. Compared with parent strain, the riboflavin content of the mutation strain was increased by 150%. 对所得的菌株进一步进行抗铵突变株的选育,最终得到富含核黄素的营养酵母突变株(M3-20),其核黄素含量达到245.;56mg/kg,与出发菌株核黄素含量相比提高了约150%25。
- The results showed that a mutant L 3 195 with inheritable qualities whose 4AD transformation productivity was 116% higher than that of its parent strain and produced no androst 1,4 diene 3,17 dione was obtained via the third method. 结果表明 ,被照菌株产 1能力有不同程度的提高。 当菌株经紫外光照射后再以不同剂量 YAG倍频激光照射 ,获得一株高产优质突变株 L- 3- 195 ,产 1能力提高了116%25 ,且不再产生结构类似副产物雄甾二烯二酮 ,经 4次传代 ,突变株遗传性状稳定。
- Fermentation curves were investigated by using 7L bioreactor under the optimum conditions. By contrast with the parent strain, the ethanol yield and the Alcohol Dehydrogenase (ADH) activity of HBF-12 decrease 73.6% and 74%, respectively. 最优条件下用7L发酵罐进行放大实验;发酵曲线显示:与亲株相比;突变株HBF-12的乙醇产量与乙醇脱氢酶(ADH)活力分别下降了73.;6%25与74%25;乳酸产量与乳酸脱氢酶(LDH)活力分别提高了39
- Bacillus subtilis 230(BS_(230)) was selected from parent strain Bacillus subtilis 1 (BS1), which was maintained in laboratory, via natural selection, U. V. radiation and DES treatment. 枯草杆菌230(BS_(230))是从实验室保存的枯草杆菌(BS_1)经自然选育,紫外线照射和硫酸二乙酯处理而得到的变株。
- A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product. 从雄甾二酮的转化产生菌偶发分枝杆菌MF2出发,经紫外诱变结合平板筛选,获得一株主要转化生产睾酮的突变株TS-N-121。
- Parent strain Lactobacillus delbruckii 1-1 which accumulated 5.8% of calcium lactate was mutated by UV-ray, DES and NaNO2, and high lactic acid-producing mutant ZL-513 which accumulated 9.4% of calcium lactate was isolated. 以分离到的一株德氏乳杆菌(Lactobacillus delbruckii) 1-1为出发菌株,经紫外线、硫酸二乙酯、亚硝酸钠等诱变剂处理,筛选出一株产乳酸较高的突变株ZL-513,乳酸钙产量由5.;8%25提高至9
- Two mutants,named mut-1 and mut-2,with decreased ADH activity were screened out by yeast peptone dextrose(YPD)agar medium containing allyl alcohol. These two mutants had decreased ADH activities of 41.63% and 50.29% compared with the parent strain. 在含丙烯醇的YPD筛选培养基上筛选获得两株ADH活力降低的突变株mut-1和mut-2;检测突变株mut-1和mut-2的最大ADH活力分别为35.;67和43
- The mutant M14 of Corynebacteriumammoniagenes was obtained whose UMP yield was 7-fold higher than the parent strain R248.The conditions of fermentable and enzymatic conversion of M14 were optimized. 采用链霉素抗性、卡那霉素抗性和产物结构类似物抗性等作为筛选手段,对产氨短杆菌R248 进行离子束和紫外诱变,选育出一株UMP 生成能力比出发菌株R248 提高7 倍突变株M14。 对高活性突变株M14 的细胞转化和发酵转化条件进行优化。
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- The mutant 3-30 was obtained by streptomycin-resistance screening,its aerial hyphal and spores output were more abundant than the parent strain,and the potency was increased by 11.9%. 首轮采用链霉素抗性筛选;得到突变株3-30;斜面外观丰满程度明显好于原对照株;发酵效价提高11.;9%25;
- Then, we compared the genomic differences between Fluoride-resistant strains and their parental strains by the REA. 结果:变形链球菌、远缘链球菌耐氟菌株的基因组已发生改变。
- After generations on YMA containing resistance to antibiotics of parental strains, they can grow and keep good stability. 经连续传代后仍能在双亲抗性培养基上正常生长,表明融合子具有良好的稳定性。
- The court is acting in loco parent. 正以家长地位行为的法院。
- Using said strain and white-rot fungi as parent strains through protoplast fusion,genetic stable fusing gametes having effective desulfuration function was ob... 成品油的脱硫实验结果表明,融合子直接应用于油品的脱硫,有较高的脱硫率和较大范围的环境耐受力,具有一定的实际应用价值。