诱变的

Using Pseudomonas syringae and Pantoea ananas , the dominant ice nucleation active bacteria strains from Yunnan province, as receptors of genetic engineering recombination, and Escherichia coli S17/pZJ25∶∶Tn5 as donator. By transposon Tn5 induced mutants method, the Tn5 was inserted and integrated into the genome of wild type INA + bacteria. INA + mutant as INA - when the linear continuous of INA + gene destroyed.

以云南省冰核细菌的优势种类丁香假单胞菌Pseudomonassyringae和菠萝泛菌Pantoeaananas为重组基因工程菌的受体菌，采用Tn5转座子诱变技术，以大肠杆菌EscherichiacoliS17/pZJ2 5∶∶Tn5作为转座子诱变的供体菌，使Tn5插入并整合到冰核细菌基因组中，使冰核基因的线性连续性被破坏，失去冰核活性。

The optimal concentration of PYM applied was 30 μg/ml.

平阳霉素对大麦诱变的适宜浓度为30μg/ml左右。

In order to improve the lipase activity of the Rhizopus oryzae strain which is used for producing biodiesel fuel, ultraviolet mutation is employed in this research.

以提高全细胞生物催化制备生物柴油的效率为目的，采用紫外诱变的方法对产脂肪酶的米根霉菌株进行诱变和筛选。

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。

Some members of this group of compounds are known to be mutagenic.

这些成分中有些是可以诱变的。

On the discussion about mechanism of mutation of methylating, we explored thermodynamics and dynamic properties on base pairs, investigating the proton transfer on base pairs.

从甲基化对嘌呤碱基电荷的影响，到甲基化引起碱基配对的改变造成碱基配对的诱变等都作了较为详细的探讨；在对甲基化诱变的探讨中，我们进行了热力学和动力学方面的研究，同时对碱基之间的质子迁移的难易程度也作了探讨；并在充分考虑水分子存在的情况下研究了甲基化对碱基之间的氢键作用和堆积作用的影响。

The results show that the suitable material for treatment is the bulb basal plate tissue with a thin part of scales after having been inoculated for 7 days,and regeneration dose is 50～60Gy,the optimum treatment dose for breading is 15～20Gy.In the small bulbs treated with 15Gy and 20 Gy,two mutants were selected,one is shorter with more leaves,the other expands faster.

结果表明，接种7D的外植体更适合作为水仙离体诱变的材料，其不分化剂量为50~60GY，半剂量为15~20GY，在10和15GY处理中，发现了两种小鳞茎突变类型，一种为叶片数增多的矮化突变体，一种为试管小球茎膨大速度加快，所以适宜辐射诱变的剂量为10~20GY。

The results show that die suitable material for treatment is the bulb basal plate tissue with a thin part of scales after having been inoculated for 7 days, and regeneration dose is 50~60Gy, the optimum treatment dose for heading is 15~20Gy. In the small bulls tinted with l5Gy and 20Gy, two mutants were selected, one is shorter with more leaves, the other expands faster.

结果表明，接种7d的外植体更适合作为水仙离体诱变的材料，其不分化剂量为50~60Gy，半剂量为15~20Gy，在10和15Gy处理中，发现了两种小鳞茎突变类型，一种为叶片数增多的矮化突变体，一种为试管小球茎膨大速度加快，所以适宜辐射诱变的剂量为10~20Gy。

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。

The effect of the two mutagenesis to the rate constant of the two microalage cell and the EPA and DHA cotents in the two miroalage cells proved that EMS was the better mutagen.

比较这两种诱变方法对海洋微藻的生长繁殖速度和脂肪酸含量的影响，结果证明采用化学诱变的处理方法更好。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。