Enterobacter asburiae KUNi5, a Nickel Resistant Bacterium for Possible Bioremediation of Nickel Contaminated Sites


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Polish Journal of Microbiology

Polish Society of Microbiologists

Subject: Microbiology


ISSN: 1733-1331
eISSN: 2544-4646





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VOLUME 65 , ISSUE 1 (March 2016) > List of articles

Enterobacter asburiae KUNi5, a Nickel Resistant Bacterium for Possible Bioremediation of Nickel Contaminated Sites

Anirudha Paul / Samir Kumar Mukherjee *

Keywords : Enterobacter sp., bioremediation, nickel

Citation Information : Polish Journal of Microbiology. Volume 65, Issue 1, Pages 115-118, DOI: https://doi.org/10.5604/17331331.1197284

License : (CC BY-NC-ND 4.0)

Received Date : 06-February-2015 / Accepted: 31-May-2015 / Published Online: 15-March-2016



Nickel resistant bacterial strain Enterobacter asburiae KUNi5 was isolated and showed resistance up to 15 mM and could remove Ni opti­mally better at 37°C and pH 7. Maximum removal was found at initial concentration of 0.5 to 2 mM, however, growth and Ni removal were affected by other heavy metals. Major amount of the metal was accumulated in the membrane fractions and certain negatively charged groups were found responsible for Ni binding. KUNi5 could also produce 1-aminocyclopropane-1-carboxylate deaminase, indole-acetic acid and siderophore. It seems that KUNi5 could be a possible candidate for Ni detoxification and plant growth promotion in Ni-contaminated field.

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