Homogenates of nub1mutants contain a reduced number of platable bacteria. (A) Homogenates of dissected nub1 guts, spread out on standard lysogeny broth agar plates, contain a significantly reduced number of platable colony forming units compared to diluted homogenates from guts of OrR controls. (B) A total of 15 individuals guts per fly strain (n) were assayed and the median of the experiment is shown in the graph as a horizontal bar. Statistical significance was calculated using unpaired t-test, *P <0.05. Scale bar in A = 1 cm. CFU, colony forming units.