钝顶螺旋藻对无机碲的吸收代谢作用  

Metabolism of Inorganic Tellurium in Spirulina With Obtuse Top

作　　者：陈小敏[1] 杨芳[1] 郑文杰[1] 

机构地区：[1]暨南大学化学系

出　　处：《现代生物医学进展》2007年第1期32-35,共4页Progress in Modern Biomedicine

基　　金：广东省自然科学基金重点项目(05103295);教育部重点项目(01141);广州市科技计划项目(2001-J-010-01)

摘　　要：研究钝顶螺旋藻对无机碲的吸收代谢作用,在钝顶螺旋藻稳定生长期(7d、8d、9d)添加700～1000 mg·L^(-1)的亚碲酸钠。结果表明,钝顶螺旋藻对无机碲有良好的有机化作用,其有机化比率达到75～80%;藻体中不同组分(固体残余物、水溶性蛋白、非蛋白水溶性物质)均有结合碲,这些组分主要是水溶性蛋白。此外,气态碲的产量和产率均随着碲剂量的增大而增加,当碲的累计浓度为1000mg·L^(-1)时,培养液中无机碲的残余率为48%,表明钝顶螺旋藻在生物修复碲污染方面有很大的开发应用潜力。Metabolism of inorganic tellurium（Te） in spirulina with obtuse top （SOT） was studied by adding sodium tellurite 700-1000 mg·L^-1 into the medium during its stable growth period. The results showed that SOT had better organic effect on inorganic tellurium. The organic ratio reached 75-80%. Tellurium combined with different components of spirulina （solid remains, water-soluble protein and nonprotein water-soluble substances）. Besides, the yield of gaseous tellurium had direct proportion with the dosage of Te. When concentration of Te was 1000 mg·L^-1, the remnant ratio of inorganic tellurium was 48%, which indicated that SOT had a great potential in the biological restoring of pollution from Te.

关 键 词：螺旋藻 碲 有机碲 气态碲 

分 类 号：Q178.53[生物学—水生生物学]