| 摘要 |
This invention corresponds to a bacteria or preferably a yeast, which in its natural state presents a reduced tolerance to heavy metals, but when genetically transformed following this invention, with a vegetal-origin gene, presents high tolerance to heavy metals. Specifically, the cell in the invention is transformed with a vector that allows the expression of the AtHMA-1 gene of Arabidopsis thaliana, which codifies for a ATPase that may function as a heavy metal pump with great affinity in the intracellular space of the yeast, which confers this transformed cell a high capacity to remove heavy metals from aqueous solutions with high efficiency, so that this cell represents an improved alternative of great usefulness for biodepuration (bioremediation) of contaminated waters coming from industrial processes, and for the recovery of heavy metals intended for reutilization.
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