1. Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
2. Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
3. DSMZ --- Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg 1b, D-38124 Braunschweig, Germany
4. Department of Ecological Engineering, Toyohashi University of Technology, Tenpaku-cho, Toyohashi 441, Japan
5. Department of Environmental and Natural Resources Science, Tokyo University of Agriculture and Technology, Fuchu 183, Japan
6. Microbiology Research Group, Division of Life Sciences, King's College London, Campden Hill Road, London W8 7AH, UK