Dehalogenimonas spp. can Reductively Dehalogenate High Concentrations of 1,2-Dichloroethane, 1,2-Dichloropropane, and 1,1,2-Trichloroethane

Authors

Andrew D. Maness, Louisiana State University and Agricultural & Mechanical College
Kimberly S. Bowman, Louisiana State University and Agricultural & Mechanical College
Jun Yan, University of Tennessee - KnoxvilleFollow
Fred A. Rainey, Louisiana State University and Agricultural & Mechanical College
William M. Moe, Louisiana State University and Agricultural & Mechanical College

Document Type

Article

Publication Date

10-9-2012

Abstract

The contaminant concentrations over which type strains of the species Dehalogenimonas alkenigignens and Dehalogenimonas lykanthroporepellens were able to reductively dechlorinate 1,2-dichloroethane (1,2-DCA), 1,2-dichloropropane (1,2-DCP), and 1,1,2-trichloroethane (1,1,2-TCA) were evaluated. Although initially isolated from an environment with much lower halogenated solvent concentrations, D. alkenigignens IP3-3^T was found to reductively dehalogenate chlorinated alkanes at concentrations comparable to D. lykanthroporepellens BL-DC-9^T. Both species dechlorinated 1,2-DCA, 1,2-DCP, and 1,1,2-TCA present at initial concentrations at least as high as 8.7, 4.0, and 3.5 mM, respectively. The ability of Dehalogenimonas spp. to carry out anaerobic reductive dechlorination even in the presence of high concentrations of chlorinated aliphatic alkanes has important implications for remediation of contaminated soil and groundwater.

Recommended Citation

AMB Express 2012, 2:54 doi:10.1186/2191-0855-2-54