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1·A study is made on the method for breeding mutant strain of metabolic regulation.

研究代谢调节突变株的选育方法。

2·This mutant strain was armed with an alteration in the protein it uses to enter cells.

这个突变的菌株配有变异的蛋白质，这是其进入细胞的方式。

3·The selected Aspergillus mutant strain, A28-8, was an excellent keratinase-producing strain.

曲霉a28 - 8是一株优良的角蛋白酶分泌突变菌株。

4·In the current study, they report on a mutant strain of P. gingivalis (PG0717) that does not induce autophagy.

在这篇刚报道的研究中，他们报道了一种不具有激活自噬作用的龈紫单胞菌突变株（PG0717）。

5·Synchronous culture the original strain and the mutant strain respectively in industrial medium and laboratory medium.

用工业培养基与实验室培养基同步培养野生型茁芽短梗霉菌株和变异株。

6·The obtained mutant strain was genetically stable, grew fast, had low demand for oxygen, and a very high lipase activity.

结果发现，该菌株遗传稳定，生长快，酯酶活力高，对氧的需求低。

7·The invention discloses a method for screening a mutant strain of a butanol producing strain for removing catabolic repression of glucose.

本发明公开了一种筛选丁醇产生菌突变株的方法。

8·The optimal fermentation medium and conditions of mutant strain NAF-032 with a higher and stable yield of L-lactic acid were studied by orthogonal design theory.

运用正交试验设计理论，对高产L-乳酸突变株NAF-032的最佳摇瓶发酵条件进行了研究，确定了最佳的发酵培养基和发酵条件。

9·Under the instruction of metabolic control theory, the screening of leucine auxotroph was determined as the method of selecting the mutant strain of low-yield fusel oil.

以代谢控制理论为指导，确定以选育亮氨酸营养缺陷型菌株作为初筛方法，选育低产杂醇油啤酒酵母突变菌株。

10·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。