Abstract: SummaryWhen grown as a biofilm in laboratory flow chambers Pseudomonas aeruginosa can develop mushroom‐shaped multicellular structures consisting of distinct subpopulations in the cap and stalk portions. We have previously presented evidence that formation of the cap portion of the mushroom‐shaped structures in P. aeruginosa biofilms occurs via bacterial migration and depends on type IV pili (Mol Microbiol 50: 61–68). In the present study we examine additional factors involved in the formation of this multicellular substructure. While pil...
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Topics: 
Microbiology
Cell biology