Abstract
1Institute of Hydrology, GSF - National Research Center for Environment and Health, Ingolstädter Landstraβe 1, D-85764 Neuherberg, Germany
2Oregon Graduate Institute of Science and Technology, Portland, OR 97291-1000, USA
3Department of Microbiology, University of Georgia, 527 Biological Sciences Building, Athens, GA 30602-2605, USA
4Department of Microbiology, University of Illinois, Urbana, IL 61801, USA
5DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen, D-38124 Braunschweig, Germany