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- chemical mutagens treatment 化学诱变处理
- No toxin-production mutants were screened with chemical mutagen methods. 本论文通过化学诱变剂方法筛选不产生毒素的突变体,比较毒素突变体与野生菌的有关生物学性状及其对水稻的侵染,并对毒素引起植物的坏死作用进行了研究。
- The first chemical mutagens to be discovered were the mustard gases used in World War I. 最初发现的诱变剂是第一次世界大战所用的芥子气。
- The three chemical mutagens were mitomycin C(MMC,DNA crosslinker),bleomycin(BLM,radiometric agent),methyl methanesulfonate(MMS,alkylating agent). 3种化学诱变剂是丝裂霉素C(MMC ,DNA交联剂 )、博来霉素 (BLM ,似X线剂 )、甲基甲烷磺酸酯 (MMS ,烷化剂 )。
- 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。
- Abstract Purpose: To develop a method of t k gene mutation assay in WTK1 cell for testing gene mutation induced by chemical mutagens. 摘要 目的: 建立WTK1细胞t k基因突变试验方法,为毒理学评价和机制的研究提供实验依据。
- A yellow -green mutational line from spring wheat treated with a chemical mutagen(KMS) was analysed on chlorophyll contents, genetical mechanism and ultrastructure of chloroplast. 本文对化学诱变剂EMS处理春小麦获得的一个黄绿色突变系的叶绿素含量、遗传机制及叶绿体的超微结构进行了分析。
- chemical mutagens safety precautions 化学诱变剂安全预防措施
- The inosine producing strain B3 was selected as the parent strain. Mutant B1916 with high D-ribose-producing ability was isolated by united mutagenic treatment of DES, uvradiation and protoplast treated by UV-way. 以肌苷产生菌B3为出发菌株 ,通过硫酸二乙酯、紫外线及原生质体紫外线等复合诱变处理 ,获得一株核糖高产积累突变株B1916。
- CHEMICAL MUTAGEN AND ITS APPLICATION IN PLANT BREEDING 化学诱变及其在农作物育种上应用
- Screening chemical mutagens and their induced mutants in silkworm, Bombyx mori 家蚕化学诱变剂及诱导突变体的筛选
- A L-tryptophan-highly productive strain TQ2223 was derived from Corynebacterium glutamicum Tx5-32 by stepwise mutagenic treatments with DES. 以谷氨酸棒杆菌Tx5 - 32 (Phe- +Tyr- )为出发菌株 ,经硫酸二乙酯 (DES)多次诱变处理 ,定向选育出一株L -色氨酸产生菌TQ2 2 2 3(Phe- +Tyr- +5 -MTr+5 -FTr+SGr+CINr)。
- The same water was reused after chemical treatment. 原来的水经过化学处理之后再度使用。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- We are doing a chemical experiment. 我们正在做化学实验。
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Ammonia is a chemical substance. 氨是种化学物质。
- The strain A-49 was chosen as the start strain for mutagenic treatments with ultraviolet irradiation + LiCl, DES and Streptomycin resistant rational screening, after first and second selection, the mutant S-22 was selected. 以菌株A-49为出发菌株,依次用紫外线氯化锂复合诱变、硫酸二乙酯诱变、链霉素抗性诱变等多种诱变手段对菌株A-49进行育种工作。
- We alternate mechanical with chemical treatment. 我们交替地进行机械和化学处理。