Eugene Rosenberg, Professor of Microbiology at Tel Aviv University, Israel.- Edward F. DeLong, Professor at Department of Civil and Environmental Engineering & Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.- Fabiano Thompson, Professor at Center of Health Sciences, Federal University of Rio de Janeiro, Brazil.- Stephen Lory, Professor at Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA, USA.- Erko Stackebrandt, Director of the German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany.