alexa Chromate reduction and 16S rRNA identification of bacteria isolated from a Cr(VI)-contaminated site.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Pattanapipitpaisal P, Brown NL, Macaskie LE

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Abstract A gram-positive, hexavalent chromium [chromate: Cr(VI)]-tolerant bacterium, isolated from tannery waste from Pakistan, was identified as a Microbacterium sp. by 16S rRNA gene sequence homology. The strain (designated as MP30) reduced toxic Cr(VI) only under anaerobic conditions at the expense of acetate as the electron donor. The bacterium was able to grow aerobically in L-broth supplemented with 15 mM CrO4(2-) but then did not reduce Cr(VI). At a concentration of 2.4x10(9) cells/ml, 100 microM sodium chromate was reduced within 30 h; however, the maximum specific reduction rate was obtained at lower initial cell concentrations.
This article was published in Appl Microbiol Biotechnol and referenced in Journal of Bioremediation & Biodegradation

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