<p><b>Copyright information:</b></p><p>Taken from "Indole is an inter-species biofilm signal mediated by SdiA"</p><p>http://www.biomedcentral.com/1471-2180/7/42</p><p>BMC Microbiology 2007;7():42-42.</p><p>Published online 18 May 2007</p><p>PMCID:PMC1899176.</p><p></p> Biomass measured at 540 nm after 24 h. Each experiment was repeated two or four times, and one standard deviation is shown
