诱变

The results show that mutation with the method of the ultraviolet and acridine orange can get a better result during the forementioned several ways of mutagenesis.

结果表明在几个不同的诱变方法中，经紫外线和吖啶橙联合诱变后爱德华氏菌的弱毒效果较好。

The mutants in good condition were selected in the culture medium of certain concentration of acrylonitrile.

为获得耐高浓度丙烯腈的菌株，利用紫外线对珊瑚诺卡氏菌进行诱变，并将诱变后生长情况较好的突变株在含一定浓度丙烯腈的培养基中进行筛选。

Chemical mutagenesis can effectively create many new peanut genotypes. And appropriateconditions of induced mutation can increase mutation efficiency and develop peanut germless resources well.

化学诱变能有效的创造各种突变体，确定诱变的适宜条件能提高诱变效率，更好地拓展花生种质资源。

The mutagen amount used is 1%, when the mutafacient time is 50 minutes, this strain lethality rate is 75%.

以其作为出发株，得出了以硫酸二乙酯诱变该株的致死率曲线，诱变剂用量为1%、诱变时间为50min时，该株的致死率达到75%。

The method of mutation breeding and the current research situation of Thiobacillus ferrous oxide are summarized,and some problems in the process of breeding are discussed.

综述了氧化亚铁硫杆菌诱变育种的方法以及诱变育种的研究现状，并对诱变育种过程中的一些问题进行了探讨。

To culture antibiotic overproducing strains, the study include using different physical and chemical factors to induce Streptomyces thermocarbonxydus var shandaensis to mutation. After original strain were mutagensised by UV combined LiCl、~(60)Co、 DES, 9 high-yield strains were obtained.

通过紫外线加氯化锂复合诱变得到高产菌株UV—18、UV—19、UV—20，其中菌株UV—19的发酵上清液抑菌圈直径是原种的1.875倍；通过~(60)Co诱变得到高产菌株Co—22、Co—36、Co—38，其中菌株Co—38的发酵上清液抑菌圈直径是原种的1.68倍；通过硫酸二乙酯诱变得到高产菌株DES—21、DES—31、DES—37，其中菌株DES—21的发酵上清液是原种的1.52倍。

When treatment leaves in vitro with EMS only, two different ways were applied as bellow:① Treatment with mutagen solution.

在化学诱变剂EMS对离体叶片的处理中，EMS溶液浸泡处理的诱变效果好于EMS液体培养的诱变效果。

Mutagenesis methods, mutagen selection, isolation and identification technology had been constantly improved and widely applied for more than seventy years.

经过七十多年的发展，果树诱变的手段、诱变剂的选择、分离筛选和鉴定技术已经成熟并被广泛应用，果树诱变育种体系日趋完善，并获得很多优良性状或品种。

When treatment on the leaves in vitro of strawberry cultivars of All Star and Xinminxing by any mutagens, the result showed that the survival and regeneration rates have no difference .

对诱变剂的敏感性 '全明星'草莓和'新明星'草莓的离体叶片在各种诱变剂的处理下，成活率和再生率之间没有显著差异，表明两个品种对各种诱变剂的敏感性相似。

"The effects of some mutagens are increased or suppressed in some organisms by the presence of certain other, nonmutagenic substances; oxygen, for example, makes cells more sensitive to the mutagenic effects of X rays."

有机体内某些非诱变物质的存在，可以加强或抑制一些诱变因子的作用，例如氧可使细胞对X光的诱变作用更加敏感。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷