1. Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, 28359 Bremen, Germany
2. Center for Biofilm Engineering, 366 EPS—P.O. Box 173980, Montana State University—Bozeman, Bozeman, Montana 59717-3980
3. Center for Genomic Sciences, Allegheny-Singer Research Institute, 1107 11th Floor South Tower, 320 East North Avenue, Pittsburgh, Pennsylvania 15212-4772