共搜索到63条信息，每页显示10条信息，共7页。用时：0小时0分0秒656毫秒
......
of Ac. cryptum DX1-1 and At. ferrooxidans GF was approximately 1?5. Key words: Acidiphilium cryptum; Acidithiobacillus ferrooxidans; UV-induced mutagenesis; bioleaching; chalcopyrite ... growth rate, low cell densities, and inhibition of iron oxidation by ferric iron[11]. Such drawbacks demand the improvement of leaching bacteria. The UV-induced mutagenesis is a frequently-used......
; 文献标志码:A 文章编号:1672-7207(2010)02-0393-07 UV-induced mutagenesis and bioleaching of Acidiphilium cryptum and Acidithiobacillus ferrooxidans YANG Yu... in Dexing in Jiangxi Province of China were studied by UV-induced mutagenesis and bioleaching. The results show that the optimum temperature and pH value are 30 ℃ and 3.5 for Ac. cryptum DX1-1, and 30......
]. To improve the bioleaching activity of bacteria, UV-induced mutagenesis breeding method was introduced in this study. UV mutagenesis is the simplest and effective physical mutation method; it can cause... of low-grade copper tailings [J]. Minerals Engineering, 2011, 24(8): 870–875. [13] YANG Yu, ZHANG Shuai, XU Ai-ling, ZOU Li-hong, LI Li, QIU Guan-zhou. UV-induced mutagenesis and bioleaching......
oil strains of Trichosporon cutaneum with mutagenesis of UV LI Xin-she, LU Bu-shi, DENG Meng-qiao,YIN Tao, HU Dun-zhu (Department of Biology and Chemistry Engineering, Shaoyang University, Shaoyang 422000, China) Abstract: The UV was applied as mutagenesis to screen mutant from Trichosporon cutaneum GIM2.68. The growth curve and death curve of the original strain were drawn by measuring......
of chemical mutagenesis, the conditions of the fade of PDA-RBBR screening plate by the selected strains C1, C5, C9 were better than the original strains. And in the course of UV-induced mutation, compared... Guang-ming, WU Juan-juan, HUANG Chao, LIU Hui. Improving lignin degradation ability of Penicillium simplicissimum by UV induced protoplast mutagenesis [J]. China Environmental Science, 2012, 32(3......
,用亚硝酸钠(NaNO2),硫酸二乙酯(DES),紫外线(UV)及其组合为诱变剂,对混合菌群进行诱变.诱变后,经过连续浸矿筛选,得到对闪锌矿浸矿效果最好的诱变菌群E.浸矿试验结果表明:在9 K和Leathen培养基中,用诱变菌群E浸出闪锌矿40 d后,Zn2+的浸出率分别比对照组提高68%和84%；离心收集Leathen培养基中的菌体和矿样浸渣,弃除液体,加入新的Leathen培养基,在30 ℃和...:1672-7207(2007)03-0439-06 Mutagenesis of mixed bacteria and influence on bioleaching of sphalerite with the mutagenized bacterial admixture KANG Jian1, 2, GAO Jian1, 2, WU Xue-lin1, DING Jian-nan1, QIU......
the original strain. Fig. 4 Effect of UV-induced mutagenesis for strains HY-7 The strain which had the shortest generation time was chosen to leach the minerals from the positive mutation. The growth curves of strains HY-7 before and after UV-induced mutagenesis are shown in Fig. 5. It is shown that the strain after mutagenesis reaches stationary phase after 144 h, which is 24 h earlier than......
and after DES-induced mutagenesis is changed from 1:1 to about 7:1 and 18:1, respectively. Key words: potassium bacteria; mutation; DES; bioleaching; potassium extraction; potassium-rich sandshale 速效与可交换性钾...-induced mutagenesis on PA (a) and growth curves of PA before and after mutagenesis (b) AT和ATM菌株的生长曲线如图2(b)所示.由图2(b)可以看出,诱变后正突变菌株ATM达到生长稳定期的时间为6 d,比出发菌株AT提前了1 d,菌体密度由诱变前的108 个/mL 左右上升到109 个/mL左右. 2.2......
] 杨 宇, 张 帅, 徐爱玲, 邹俐宏, 历 丽, 邱冠周. 隐藏嗜酸菌 DX1-1和氧化亚铁硫杆菌CMS的紫外诱变育种及浸矿研究[J]. 中南大学学报: 自然科学版, 2010, 41(2): 393-399. YANG Yu, ZHANG Shuai, XU Ai-ling, ZOU Li-hong, LI Li, QIU Guan-zhou. UV-induced mutagenesis...; 文献标志码:A Sodium nitrite induced mutagenesis of bacteria and bioleaching silicon from bauxite ZHONG Chan-juan1, 2, SUN De-si1, 2, WANG Hua-jun2......
