MANIPULATION OF NI2+ TOLERANCE OF SACCHROMYCES CEREVISIAE CELLS: A PRIMARY STEP TO BIOREMEDIATION BY REMOVAL AND RECOVERY OF NI2+ FROM CONTAMINATED WATERS

被引:0
作者
Farcasanu, Licana C. [1 ]
Paraschivescu, Codruta [1 ]
Ruta, Lavinia [1 ]
Oprea, Eliza [1 ]
Avramescu, Sorin [1 ]
机构
[1] Univ Bucharest, Dept Organ Chem, Fac Chem, Bucharest, Romania
关键词
Saccharomyces cerevisiae; nickel; tolerance; hyperaccumulation;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Metal remediation through common physico-chemical techniques is expensive and unsuitable in case of voluminous effluents containing complex organic matter and low metal contamination. Alternative biotechnological approaches received great deal of attention in the recent years. Engineering cell lines that would hyperaccumulate heavy metals can be an invaluable tool in removing such ions from aqueous environments. In this study we obtained Saccharomyces cerevisiae mutants that were tolerant to high concentrations of Ni2+. Out of the five tolerant lines selected, two were shown to hyperaccumulate the Ni2+ ions in the vacuole. These mutants represent the first step in designing a system suitable for bioremediation of Ni2+-contaminated waters.
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页码:647 / +
页数:6
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