诱变的

The concentrations and treatment time of EMS was related closely with the injury degree on the embryogenic callus.

在化学诱变剂 EMS对木薯胚性愈伤组织的处理中，EMS的浓度与处理时间对愈伤组织损伤程度有很大影响。

Low energy ion implantation technology was used in mutation breeding of Hericium erinaceus.The growth speed of the Hericium erinaceus hypha is as an index to study the influence of the pulse lasting time of N~+ ion implantation.

利用低能离子束生物技术对猴头菌进行诱变选育，通过分析N+离子注入后猴头菌丝体的生长速度，研究脉冲时间对N+离子注入猴头菌丝体的影响。

The experimental results show:(1) The water in South Fei River has been comtaminated, especially in industrial and residential part.(2)Vicia faba(QI_1) is sensitive to mutagen, and liner relation between the freguency of micronuclear cell in the root tip cells of Vicia faba(QI_1)and concentration ...

结果表明，南淝河水体已被污染，尤其以工业区和居民生活区污染严重；启豆Ⅰ号对诱变物反应敏感，水环境中污染物浓度与微核千分率呈线性相关，因此启豆Ⅰ号作为微核监测技术的实验材料是可靠的。

Therefore, exposure to the space environment could be used as a method for mutagenic seeds breeding.

故认为高梁干种子在空间条件下所产生的变异是可以稳定地遗传给后代，航天育种可以作为一种新的诱变育种方法。

Results show that, by uv-vis spectra, fluorescence spectra and Fourier infrared spectra transform all successfully gained water-soluble CdTe quantum dots. With the increase of water-soluble CdTe quantum dot concentration increasing, Achyranthes Bidentata root length and the seed vigor reduced ordinally, but its germination changed no obviously, suggested the space mutagenesis treatment can improve Achyranthes Bidentata seed vigor.

结果表明，紫外－可见光谱、荧光光谱和傅立叶红外变换光谱图均说明已成功制备水溶性CdTe量子点；随水溶性CdTe量子点浓度增大，牛膝的根长和种子活力依次降低，但其对发芽势影响的规律不明显，经空间诱变处理能提高牛膝种子活力。

In order to evaluate resistance risk of Phytophthora parasitica var. nicotianae to metalaxyl, the metalaxyl-sensitive strain 240 and metalaxyl-resistant strain191 were studied. The results showed that the mutation rate of metalaxyl-sensitive strain 240 was 7.0×10–5 on CA medium with metalaxyl concentration of 10μg/mL.

为了评估烟草黑胫病菌对甲霜灵的抗药性风险，以对甲霜灵敏感和高抗的烟草黑胫病菌240和191为出发菌株，进行了抗性突变频率测定、抗性诱变、抗性水平测定、遗传稳定性、生长速率、致病性测定和适合度等研究。

The rate of micronucleus of the red blood cells with polychromasia and the rate of chromosome aberration was used as the guideline of DNA damage.

本次遗传毒理实验以绞股蓝为材料，以明矾为诱变剂，以小白鼠骨髓嗜多染红细胞的微核率和染色体畸变率作为DNA损伤的指标。

In the present study, the autotetraploid rice IR36-4X was treated with ion implantation technique by nitrogen ion beams and a polyembryonic seedling mutant (named as the IR36-Shuang) was identified in M2 generation. The mutant line was systematically investigated about the location of seedling in polyembryonic seedling, and the cytological initiation of the additional embryo in the 1R36-Shuang was observed and determined.

以低能氮离子束为诱变源，通过对同源四倍体水稻品系&IR36-4X&进行离子注入后在其第2代群体内筛选得到了1株具有多胚苗性状特征的突变株（IR36-双），对该突变株后代的多胚苗形态特征及其多胚来源进行了研究。

The current studies focus on the hot aspect that A. niger is screened from the nature to gain a new-type strain via biotechnology, e.g. ultraviolet radialization, laser irradiation, microwave radiation, plasmogamy and gene transfer et al. The contents as follows were presented in this paper.

目前研究的热点是通过生物技术方法有目的地改造从自然界分离筛选到的黑曲霉，以获得新型菌株，如用紫外线照射诱变、激光辐射、微波辐射、原生质融合和基因转化技术等来研制开发新型黑曲霉菌株。

The YY saccharomycetes was muted by diffent dosage heavy ion in the experiment, The data was analysied for obtaining the mold mushroom spawn lethality in 0.25~0.5GY, then through 3 steps screening, obtained the saccharomycetes which had grown well and beard the high consistence alcoho.

摘 要：本实验主要阐述了使用不同剂量的重离子对YY酵母菌进行辐照诱变选育耐酒精酵母的实验过程，结果表明：菌种致死率在0.25～0.5GY。

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。