Ren, Dawei2; Madsen, Jonas Stenløkke2; Sørensen, Søren Johannes2; Burmølle, Mette2
1 Microbiology, Department of Biology, Faculty of Science, Københavns Universitet2 Microbiology, Department of Biology, Faculty of Science, Københavns Universitet
97% of total biofilm cell number). Despite low relative abundance of all the remaining strains, all were indispensable for the strong synergistic effect to occur within the four-species biofilm. Moreover, absolute individual strain cell numbers were significantly enhanced when compared with those of single-species biofilms, indicating that all the individual strains benefit from inclusion in the multispecies community. Our results show a high prevalence of synergy in biofilm formation in multispecies consortia isolated from a natural bacterial habitat and suggest that interspecific cooperation occurs.