![]() Whereas Zn ++ and Cd ++ are extensively used in batteries, electroplating, paints, pigments, topical creams, rechargeable cells and stabilizers ( Hynninen, 2010 Orell et al. It has also been used in hospitals to reduce the infections caused by bacteria ( Hobman and Crossman, 2015). Copper has been used as an antifungal and antimicrobial agent in agriculture. Metals like as, Pb, Mn, Fe, Cd, Hg, Cu, Fe, Zn and Cr are used for number of medical and industrial applications. Debris from mining and milling, liquid waste containing pesticides, radioactive waste containing fission fragments and mainly effluents from various engineering and chemical industries are major contributors of anthropogenic emissions of heavy metals to the environment ( Singh et al. ![]() pneumoniae KW an efficient tool for cleaning Cu ++ rich industrial effluents.Įnvironmental pollution is a serious threat for mankind. All these characteristics viz., high tolerance against Cu ++, excellent Cu ++ uptake and efflux abilities, remarkable multi metal resistance potential and tolerance against substantial ranges of temperature and pH make K. KW was found to be resistant to broader range of antibiotics as compared to CC. KW and CC were also investigated for their resistance potential against various antibiotics. These strains exhibited good growth in the wide range of pH (5-10) and temperature (25 -44☌). These strains were also found substantially resistant to some other toxic heavy metals generally present in the industrial effluents. ![]() The strains also exhibited efflux ability KW possessed more efficient efflux system as it expelled 94.46% of maximum stored copper within 24 h as compared to 56% by CC. Maximum uptake of Cu ++ by mid log phase cultures of KW and CC was 19.26 and 28.77µg per mg cell dry weight, respectively. In the current study, copper resistant Klebsiella pneumoniae strains KW and CC were investigated for their bioremediation potential. Bioremediation is considered as the best possible solution among the existing ones to reduce this kind of pollution. Increasing concentrations of different essential and non-essential metals in the environment have posed a serious threat to all kinds of life. ![]()
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January 2023
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