الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The presence of inorganic pollutants such as metal ions (Cr6+ and Cd2+) could destroy our environmental and ecosystem. To overcome this problem, much attention was directed to the microbial technology. Microbial cells could be tolerated to the toxic effects and decreased their concentration with keeping their viability. Therefore, we built up a complementary strategy to study the cell population, cell viability, and maturity of biofilm formation under the stress of heavy metals. As target resistive organisms, Rhizobium-MAP7-MG214656 and Rhodotorula ALT72 were used. However, Pontoea agglumerans was exploited as the susceptible organism. Among the methods of analysis, bioelectrochemical measurements showed the most effective tools to study the susceptibility and resistivity to the heavy metals.
The tested Rhizobium strain showed higher ability of removal heavy metals and more resistive to metals ions since its cell viability was not strongly inhibited by either the toxic metal ions over the various concentrations. On the other hand, its faradic currents which result from electrochemically active biofilm in presence of heavy metals ions was higher. So using the two strains especially Rhizobium-MAP7-MG214656 support the detection and removal of heavy metals (Cr+6 and Cd+2).