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Applied and Environmental Microbiology, February 2006, p. 1663-1666, Vol. 72, No. 2
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.2.1663-1666.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Biodiversity of Methanogenic and Other Archaea in the Permanently Frozen Lake Fryxell, Antarctica

Elizabeth A. Karr,{dagger} Joshua M. Ng, Sara M. Belchik, W. Matthew Sattley, Michael T. Madigan, and Laurie A. Achenbach*

Department of Microbiology, Southern Illinois University, Carbondale, Illinois 62901

Received 6 September 2005/ Accepted 21 November 2005

Archaea were detected in molecular diversity studies of the permanently frozen Lake Fryxell, Antarctica. Two clusters of methanogens were detected in the sediments, and another cluster of possibly methanotrophic Euryarchaeota was detected in the anoxic water column just above the sediments. One crenarchaeote was detected in water just below the oxycline. The Archaea present in Lake Fryxell are likely involved in the major biogeochemical cycles that occur there.

* Corresponding author. Mailing address: Department of Microbiology, Southern Illinois University, Carbondale, IL 62901. Phone: (618) 453-7984. Fax: (618) 453-8036. E-mail: laurie{at}micro.siu.edu.

{dagger} Present address: Department of Microbiology, The Ohio State University, Columbus, OH 43210.

Applied and Environmental Microbiology, February 2006, p. 1663-1666, Vol. 72, No. 2
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.2.1663-1666.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



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