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AEM Accepts, published online ahead of print on 9 November 2007
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Appl. Environ. Microbiol. doi:10.1128/AEM.01448-07
Copyright (c) 2007, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

Eucaryotic Diversity in a Hypersaline Microbial Mat

Leah M. Feazel, John R. Spear, Alicia B. Berger, J. Kirk Harris, Daniel N. Frank, Ruth E. Ley, and Norman R. Pace*

Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Colorado, 80309-0347; Division of Environmental Science and Engineering, Colorado School of Mines, Golden, CO 80401; Cancer Biology Program and Pathology Department, School of Medicine, Stanford University, Palo Alto, CA 94305; School of Medicine, Washington University, St. Louis, MO 63108

* To whom correspondence should be addressed. Email: nrpace{at}colorado.edu.


  Abstract

To determine the eucaryotic diversity of the hypersaline Guerrero Negro microbial mat, we amplified 18S rRNA genes from DNA extracted from this mat, constructed, and analyzed clone libraries. The extent of eucaryotic diversity detected was remarkably low, only fifteen species among 890 clones analyzed. Six eucaryotic kingdoms were represented, as well as a novel cluster of sequences. Nematode sequences dominated the clone libraries.




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