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Methods Five different ultraviolet absorption components were isolated from the filtrate of Botrytis cinerea isolate 7–3 culture. Of the five components, one showed strong inhibitory to Digitaria sanguinalis.

在前期薄层层析法、柱层析法和高效液相色谱法分析的基础上对灰葡萄孢诱变菌株BC7–3的代谢产物中具有除草活性的5个不同组分分别进行了液相色谱制备。

The contents of soluble sugar , starch , protein and free praline in anthers were analyzed and compared between male fertilizable and male sterilie induced by space flight at different developmental stages .

为探讨太空诱变处理玉米核不育材料的可育株,不育株花药的生理生化特性差异,对可育,不育材料不同发育时期花药的可溶性糖,可溶性淀粉,蛋白质含量以及游离脯氨酸含量进行了测定。

It was also found that the effect of protoplasts" UV mutagenic breeding was better than spores".

我们同时还研究了不同的培养温度对孢子的紫外诱变正向突变率的影响。

To improve the nitrilase production,a strain of Rhodococcus rhodochrous was treated with UV radiation and LiCl,a mutant,tg1-A6,with higher nitrilase activity was obtained.

对实验室保存的1株产腈水解酶的Rhodococcus rhodochrous菌株采用氯化锂进行诱变处理,筛选得到了1株产酶活力较高的菌株tg1-A6。

Second, the time of the saccharomycetes which muted is 14~16hours.

在突变株发酵性能实验中,通过对酵母菌生长曲线的绘制和流加时间的确定,得到诱变后菌种的最佳培养时间为14~16小时。

The mutation and the screening of the original fungus were carried out by the ultraviolet radiation method to obtain a mutant species UV-A that can depredated the crude protein in the rape cake to 15.46%,which is 1.4 times that of the original fungus.

采用紫外照射法对原始菌株进行诱变和筛选,得到一株降解饼粕中粗蛋白能力较强的变异菌株UV -A ,能使饼粕中粗蛋白的含量降到15 。4 6 %,是原始菌株的1.4倍。

The relative activity of a lipase from Candida valida Z6 was studied in hydrolysis of simple esters,fatty acid glycerides and lipidse.

通过与一种不同来源的脂肪酶作比较,研究了粗状假丝酵母诱变株Z6产脂肪酶水解不同底物的相对酶活,包括对低级酯、脂肪酸甘油酯和天然油脂的水解。

The same mutagen in the same concentration could increase the ratio of mutagen to PLB with the extended time.

同浓度的同种诱变剂随处理时间的增加材料的变异程度有增大趋势,但不很显著。

Chromosome mutations can occur naturally but their frequency is increased by the effect of x-rays and chemical mutagens.

染色体的突变是自然发生的,但通过 X 射线或化学诱变剂可以增加突变的频率。

Result Because of comprehensive space mutation, the characters of their progenies were s...

结论本研究为返回式卫星搭载处理的空间诱变育种提供了一个新的佐证,表明它是农作物育种的一条有效新途径。

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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。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。