不同矿物对硅酸盐细菌JXF菌株生长的抑制作用  

Inhibitory effect of different minerals on silicate bacterium JXF strain growth

作　　者：孙德四[1] 于盛禄[1] 孙建奇[2] 

机构地区：[1]九江学院应用化学研究所 [2]九江学院化学化工学院

出　　处：《黄金》2008年第1期45-48,共4页Gold

基　　金：江西省教育厅科技项目(赣教技字[2007]337号);江西省自然科学基金项目(0520037)

摘　　要：硅酸盐细菌在不同的固体培养基和液体培养基中培养2～3d后，菌种繁殖产生的细菌数、细菌及荚膜直径、发酵液中黏度的大小顺序为：硅酸盐矿物培养基〉铝土矿培养基〉赤铁矿培养基〉阿什比基质培养基，菌种在不同的硅酸盐矿物培养基中生长特性差别不大。菌种驯化培养试验表明，不同类型矿物对细菌的生长抑制作用表现为：赤铁矿〉铝土矿〉硅酸盐矿物。摇瓶脱硅试验表明，驯化菌种的脱硅率要比未驯化菌种的平均高15％左右，不同来源的硅酸盐细菌均具有较好的脱硅能力。Mter 2 - 3 days＇ cultivation in different solid or liquid culture medium, the bacterial count, diameter of bacteria and capsule, viscocity of fermentation liquid are in the following order： silicate mineral culture medium 〉 bauxite culture medium 〉 hematite culture medium 〉 atto-assorted ratio matrices culture medium. The vegetative character distinction is unobvious. Strain domestication experiments show that inhibition effect of different minerals on bacterial growth is in the following order： hematite 〉 bauxite 〉 silicate mineral. The shake flask desilication experiments reveal that desilication yield of domestication strain is 15% higher than the undomestication ones and all silicate bacterium from different sources have good desilication ability.

关 键 词：硅酸盐细菌 培养基 硅酸盐矿物 赤铁矿 

分 类 号：Q939.97[生物学—微生物学] TD952.5[矿业工程—选矿]