Isolation of a methane-oxidizing bacterium that bioremediates hexavalent chromium from a formerly industrialized Suburban River.

CHALLA, S and SMITH, Thomas (2020). Isolation of a methane-oxidizing bacterium that bioremediates hexavalent chromium from a formerly industrialized Suburban River. Letters In Applied Microbiology.

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Link to published version:: https://doi.org/10.1111/lam.13330
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    Abstract

    Sediment samples were taken from sediment adjacent to a suburban river in Sheffield in Northern England that had suffered heavy metal pollution due to previous activity of the steel industry (between the 17th and 19th centuries). The most abundant heavy metals found in the samples were lead, chromium, nickel, arsenic and cobalt, with maximum concentrations of 412·80, 25·232, 25·196, 8·123 and 7·66 mg kg-1 , respectively. Enrichment cultures were set up using methane as carbon and energy source, as a result of which a strain of methanotroph was isolated that was shown via 16S rRNA gene sequencing to be a strain Methylomonas koyamae and given the designation SHU1. M. koyamae SHU1 removed hexavalent chromium from an initial concentration of 10 ppm, which was inhibited by the metabolic inhibitor sodium azide or the methane monooxygenase inhibitor phenylacetylene. To the authors' knowledge, this is the first description of a strain of the widely environmentally distributed genus Methylomonas that is capable of remediating hexavalent chromium.

    Item Type: Article
    Additional Information: This is the peer reviewed version of the following article: Challa, S. and Smith, T. (2020), Isolation of a methane‐oxidizing bacterium that bioremediates hexavalent chromium from a formerly industrialized Suburban River. Lett Appl Microbiol. doi:10.1111/lam.13330, which has been published in final form at https://doi.org/10.1111/lam.13330. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
    Uncontrolled Keywords: Methylomonas koyamae ; bioremediation; environmental isolate; hexavalent chromium; methane-oxidizing bacteria; Microbiology
    Identification Number: https://doi.org/10.1111/lam.13330
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 29 Jun 2020 12:01
    Last Modified: 29 Jun 2020 12:01
    URI: http://shura.shu.ac.uk/id/eprint/26523

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