NOX complex mutants are affected in their tropic interactions. (A) Quantification of tropic interactions 4 h post inoculation in the following strains: wild type (FGSC 2489), Δnox-1, 723 (nox-1::hph;his3::Ptef-1–mak-2–gfp–caax), Δnor-1, 719 (nor-1::hph;his3::Ptef-1–mak-2–gfp–caax), Δbem-1, 569 (bem-1::hph;his3::Ptef-1–mak-2–gfp–caax), Δham-6 and 773 (ham-6::hph;his3::Ptef-1–mak-2–gfp–caax). Results are means±s.d. (n≥100). (B) Localization of the membrane-tethered MAK-2 in different deletion mutants of the ROS generating system. Scale bars: 5 µm. Comparable observations were made for multiple samples (n≥5).