AI Article Synopsis

  • In the middle Gangetic plain, water has high arsenic levels that pose serious health risks.
  • Researchers isolated 48 distinct bacteria that resist arsenite, with two isolates (AK1 and AK9) showing a wide range of minimum inhibitory concentrations (MIC) from 1-15 mM.
  • Genetic analysis confirmed these isolates belong to a specific genus and showed potential for arsenic transformation and resistance to various heavy metals like chromium and lead.

Article Abstract

In middle Gangetic plain, high arsenic concentration is present in water, which causes a significant health risk. Total 48 morphologically distinct arsenite resistant bacteria were isolated from middle Gangetic plain. The minimum inhibitory concentration (MIC) values of arsenite varied widely in the range 1-15 mM of the isolates. On the basis of their MIC, two isolates, AK1 (KY569423) and AK9 (KY569424) were selected. The analysis of the 16S rRNA gene sequence of selected isolates revealed that they are belong to the genus . The AgNO test based microplate method revealed that isolates, AK1 and AK9, have potential in transformation of arsenic species. Further, the presence of and genes in the both isolated strain AK1 and AK9 was confirmed, which play an important role in arsenic bioremediation by arsenite oxidation. Isolated strains also showed heavy metal resistance against Cr(IV), Ni(II), Co(II), Pb(II), Cu(II), Hg(II), Ag(I) and Cd(II).

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5849785PMC
http://dx.doi.org/10.1016/j.btre.2018.02.002DOI Listing

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