sentence: It can provide a ‘ quasi ‐ linear ’ scale to compare treatment severity , even though this must be handled with care , as a linear comparison obviously lacks information on the differences in the types of phenotypic responses.We found that during the early infection stage ( 4 dpi ) , infection with U. maydis effector mutants was indistinguishable from infection with the fully capable U. maydis strain ( SG200 ) .