
Fig. 1. Disruption of mdrA1 and mdrA2 results in a partial rescue of the developmental defect exhibited by mutation of rtoA. Wild-type DH1 cells, rtoA- cells, rtoA-/mdrA1-/mdrA2- cells and mdrA1-/mdrA2- cells were plated with bacteria on agar. As the bacteria were consumed, development was triggered and after 24 hours fruiting structures formed. A side view of these resulting developmental structures is shown. The width of each frame is 3.5 mm.