摘要
一株自某金矿分离纯化而得到的最适pH2 0的氧化亚铁硫杆菌(Acidobacillusferrooxidans),经紫外线诱变处理、定向筛选后获得最适pH为1 2～2 0、且可在pH0 6的条件下生长的突变株。该菌株经过八代接种培养后氧化活性稳定。两菌株诱变前后的形态及生理特性比较表明,该诱变菌株为一氧化亚铁硫杆菌的变种。
An original strain of Acidobacillus Ferrooxidans which is separated from a kind of gold ore with optimum pH 2.0 and high activity in oxidizing ferrous has been treated by ultraviolet irradiation. A mutant strain is obtained after a series of directional filtration which optimum pH is around 1.2～2.0 and can grow at the extremely condition of pH 0.6. Meanwhile it is stable after 8 times inoculating culturing. The comparison of morphology and physiology of the original strain and mutant strain indicates that the mutant strain is a kind of variety of Acidobacillus Ferrooxidans.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2005年第3期6-9,13,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
江西省教委科技项目资助(赣财教[2003]-97号)
关键词
氧化亚铁硫杆菌
PH
紫外线诱变
定向筛选
Acidobacillus Ferrooxidans
pH
Ultraviolet irradiation
Directional fltration
