Interactions of Fw and R colonies. a R and Fw planted simultaneously at a distance of 10 mm - induction of X pattern in Fw; the microscopic image of the X periphery is uniform round the perimeter, whereas R scouts appear only in the interaction area (day 10). b R dotted to the vicinity or into Fw colonies (planted by dropping) of varying age (0–24 hours), photographed after 2 and 8 days of common growth. c Interaction of F and R on MMA, planting distance 3 mm; dashed line delineates the contours of both colonies (Day 7).
Pátková et al. BMC Microbiology 2012 12:178 doi:10.1186/1471-2180-12-178