Bacterial resistance to chosen heavy metals

Author(s): S.Muthuraman, K.Natarajan, S.Srinivasan, A.J.Thatheyus, D.Ramya

The present study is aimed at determining the resistance chosen of bacteria to selected heavy metals. The bacterial isolates were able to tolerate or resist the presence of selected heavy metals like Cd, Cu, Zn, Fe, Mn and Hg. Identification tests for all the bacterial isolates revealed that they to belong to the genera Aeromonas, Escherichia, Klebsiella, Pseudomonas, Proteus and Bacillus. The control experiment showed heavy growth of all the organisms.All the bacterial strains showed resistance against the heavy metals with Minimal Inhibitory Concentration (MIC) values ranging from 50 to 1000 ppm.

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