effector-mediated defense to host-produced reactive oxygen species https://github.com/geneontology/go-ontology/issues/18697 suppression by symbiont of defense-related host reactive oxygen species production GO:0033661 negative regulation by organism of defense-related host ROI production down regulation by organism of defense-related host metabolic burst negative regulation by organism of defense-related host respiratory burst A process mediated by a molecule secreted by a symbiont that results in the suppression of reactive oxygen species produced by the host as part of its innate immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction. negative regulation by organism of defense-related host ROS production negative regulation by organism of defense-related host reactive oxygen intermediate production negative regulation by symbiont of defense-related host reactive oxygen species production biological_process negative regulation by organism of defense-related host reactive oxidative species production downregulation by organism of defense-related host AOS production down-regulation by organism of defense-related host oxidative burst symbiont defense to host-produced reactive oxygen species