Lack of <i>Bt</i>-<i>Bp</i>1106a-3 and <i>Bt</i>-<i>Bp</i>1106a-3b mediated interbacterial competition.

<p>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 <b>A</b>) <i>Bt</i>-<i>Bp</i>1106a-3 or <b>B</b>) <i>Bt</i>-<i>Bp</i>1106a-3b (inhibitors) and <i>BtΔbcpAIOB</i> bacteria without immunity or with cognate immunity (targets), <b>C</b>) <i>Bt</i>E264 (inhibitor) and <i>Bt</i>-<i>Bp</i>1106a-3 without immunity or with cognate immunity (targets), <b>D</b>) <i>Bt</i>E264 (inhibitor) and <i>Bt</i>-<i>Bp</i>1106a-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.