Kind Discrimination and Competitive Exclusion Mediated by Contact-Dependent Growth Inhibition Systems Shape Biofilm Community Structure
Figure 3
Lack of Bt-Bp1106a-3 and Bt-Bp1106a-3b mediated interbacterial competition.
Samples of bacteria from the center (C) and edge (E) of colony biofilms taken after 24 hours were plated with antibiotics to determine the log competitive index (C.I. (Log)) (blue data points) for competitions between A) Bt-Bp1106a-3 or B) Bt-Bp1106a-3b (inhibitors) and BtΔbcpAIOB bacteria without immunity or with cognate immunity (targets), C) BtE264 (inhibitor) and Bt-Bp1106a-3 without immunity or with cognate immunity (targets), D) BtE264 (inhibitor) and Bt-Bp1106a-3b without immunity or with cognate immunity (targets). Red data points indicate only inhibitor bacteria were recovered, and the actual C.I. is therefore greater than or equal to the represented value.