Additional file 4.

Interactions between populations originating from the same initial culture. (A) Kymograph of fluorescence intensity for a type-1 device inoculated at both sides with the non-chemotactic, smooth-swimming, strain JEK1038 (ΔcheY). (B) Kymograph of fluorescence intensity for one habitat in a type-1 device that was inoculated at both sides with cells coming from the same initial culture of strain JEK1036. (C) Enlarged part of panel B. (D) Enlarged part of a different habitat in the same device as shown in panels B and C.

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van Vliet et al. BMC Microbiology 2014 14:116   doi:10.1186/1471-2180-14-116