Abstract
1 Department of Microbiology, University of Georgia, Athens, GA 30602, USA
2 Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA
3 Savannah River Ecology Laboratory, University of Georgia, Aiken, SC 29802, USA
4 Department of Geology, University of Georgia, Athens, GA 30602, USA
5 HZI - Helmholtz Centre for Infection Research, Inhoffenstrasse 7, D-38124 Braunschweig, Germany