lcaligenes eutrophus have developed resistance to heavy metal ions through mutations and hence can grow in the presence those otherwise deadly ions [13]. In fact, this bacterium can drastically decrease the Cd2+ concentration in a culture from 200 ppm to 2 ppm as well as Zn2+ concentration from 600 ppm to 10 ppm. Therefore, A. eutrophus is particulary useful in treating industrial wastewater. Moreover, A. eutrophus can also bioremediate polluted soils. However, further research is necessary in order to gain a full understanding of how it can effectively function as soil bioremediation agent.