is about disk diffusion test evidence 2016-03-29T16:02:22Z Disk diffusion assays were used to determine if ohr and ohrR mutations affected resistance to ROS. The ohr mutant was less resistant than its parental strain when challenged with organic peroxides as shown by the zones of growth inhibition: 4.1 +- 0.2 cm for CuOOH and 3.1 +- 0.1 cm for tBOOH versus to 2.3 +- 0.2 and 2.5 +- 0.3 cm for wild type strain. ECO:0005605 A type of zone of inhibition evidence where sensitivity/resistance to an antimicrobial agent is tested by impregnating small filter disks with a known concentration of antimicrobial agent which is then placed on a Mueller-Hinton agar plate inoculated with the test organism. eco snadendla zone of inhibition evidence response to antibiotic