Vol. 11, Issue 5 (2022)

Author(s):
Ankita Ghosh, JPN Rai, Diksha Sah and Moumita Chakraborty

Abstract:
High concentrations of non-essential heavy metals (arsenic, cadmium, and lead) in soils represent a threat to the environment, food safety, human and animal health. Microbial bioremediation has emerged as a promising strategy to reduce the concentration of heavy metals in the environment due to the demonstrated ability of microorganisms, especially bacteria, to sequester and transform these compounds. Present study deals with isolation and characterization of lead resistant bacteria isolated from heavy metal contaminated soil followed by the study of lead tolerance and bioremediation. Minimum inhibitory concentration (MIC) was shown against the lead acetate at different levels. The higher MIC was observed at a concentration of 1200μg/ml of lead acetate. The present study reveals that the selected lead resistant bacterial isolate A4 shows high lead resistance and might be possible to use in bioremediation.