obsolete induction by organism of symbiont phytoalexin production true GO:0052398 induction by organism of symbiont phytoalexin production biological_process This term was made obsolete because it does not represent a real biological process. activation by organism of symbiont phytoalexin production OBSOLETE. The activation by an organism of the production of phytoalexins as part of the defense response of the symbiont organism. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction.