Fig. 1
From: Antagonism between Staphylococcus epidermidis and Propionibacterium acnes and its genomic basis
Simultaneous antagonism assay of S. epidermidis against P. acnes. A representative result of a simultaneous antagonism assay is shown. A large TS agar plate was floated with a suspension of a P. acnes indicator strain, and strains of S. epidermidis were point-inoculated on the agar surface. Growth inhibition around several of the S. epidermidis colonies is apparent. Diameters of the depicted inhibitory zones ranged from 3Â mm to 20Â mm. Arrows point to the individual zones of inhibition, i.e., opaque (O), small (S), medium (M), large (L) zones, or no inhibition zone (N)