RRC ID 34015
著者 Dillehay JL, Bowman KS, Yan J, Rainey FA, Moe WM.
タイトル Substrate interactions in dehalogenation of 1,2-dichloroethane, 1,2-dichloropropane, and 1,1,2-trichloroethane mixtures by Dehalogenimonas spp.
ジャーナル Biodegradation
Abstract When chlorinated alkanes are present as soil or groundwater pollutants, they often occur in mixtures. This study evaluated substrate interactions during the anaerobic reductive dehalogenation of chlorinated alkanes by the type strains of two Dehalogenimonas species, D. lykanthroporepellens and D. alkenigignens. Four contaminant mixtures comprised of combinations of the chlorinated solvents 1,2-dichloroethane (1,2-DCA), 1,2-dichloropropane (1,2-DCP), and 1,1,2-trichloroethane (1,1,2-TCA) were assessed for each species. Chlorinated solvent depletion and daughter product formation determined as a function of time following inoculation into anaerobic media revealed preferential dechlorination of 1,1,2-TCA over both 1,2-DCA and 1,2-DCP for both species. 1,2-DCA in particular was not dechlorinated until 1,1,2-TCA reached low concentrations. In contrast, both species concurrently dechlorinated 1,2-DCA and 1,2-DCP over a comparably large concentration range. This is the first report of substrate interactions during chlorinated alkane dehalogenation by pure cultures, and the results provide insights into the chlorinated alkane transformation processes that may be expected for contaminant mixtures in environments where Dehalogenimonas spp. are present.
巻・号 25(2)
ページ 301-12
公開日 2014-4-1
DOI 10.1007/s10532-013-9661-2
PMID 23990262
MeSH Biodegradation, Environmental Biotransformation Chloroflexi / metabolism* Ethylene Dichlorides / metabolism* Halogenation Propane / analogs & derivatives* Propane / metabolism Soil Pollutants / metabolism Trichloroethanes / metabolism* Water Pollutants, Chemical / metabolism
IF 2.805
引用数 7
WOS 分野 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
リソース情報
一般微生物 JCM 17062 JCM 15061