S. Hassan, Erum Hanif, A. Siddiqui, E. Asif, U. Khan, A. Tanoli
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Heavy Metal Resistant Bacteria: A Potential Candidate for Bioremediation
Microorganisms have numerous biotechnological applications for bioremediation of metal-contaminated soil and water systems. In view of this, the present study was aimed to evaluate the abilities of microorganisms for tolerance and biosorption of heavy metals. In this study we have isolated 30 different bacterial strains from soil. Morphological and biochemical characterization was carried out. It was shown that Pseudomonas sp. was most common isolate among heavy metal resistant organisms that are capable of resisting 5 heavy metals (Ni, Pb, Cr, Cu and Cd) of concentration range 50-300μg/ml. Among 30 isolates, 4 of them showed high degree of resistance against all metals at concentration at 300μg/ml. Bacterial strains isolated in this study can be used in bioremediation and bio-mining.
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