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Applied and Environmental Microbiology, October 2005, p. 6414-6417, Vol. 71, No. 10
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.10.6414-6417.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Chloroethene Biodegradation in Sediments at 4°C

P. M. Bradley,1* S. Richmond,2 and F. H. Chapelle1

U.S. Geological Survey, 720 Gracern Rd., Suite 129, Columbia, South Carolina 29210,1 Alaska Department of Environmental Conservation, 610 University Avenue, Fairbanks, Alaska 997092

Received 7 February 2005/ Accepted 3 May 2005

Microbial reductive dechlorination of [1,2-14C]trichloroethene to [14C]cis-dichloroethene and [14C]vinyl chloride was observed at 4°C in anoxic microcosms prepared with cold temperature-adapted aquifer and river sediments from Alaska. Microbial anaerobic oxidation of [1,2-14C]cis-dichloroethene and [1,2-14C]vinyl chloride to 14CO2 also was observed under these conditions.

* Corresponding author. Mailing address: U.S. Geological Survey, 720 Gracern Rd., Suite 129, Columbia, SC 29210. Phone: (803) 750-6125. Fax: (803) 750-6181. E-mail: pbradley{at}usgs.gov.

Applied and Environmental Microbiology, October 2005, p. 6414-6417, Vol. 71, No. 10
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.10.6414-6417.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.





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