obsolete induction by symbiont of defense-related host cell wall thickening true positive regulation by symbiont of defense-related host cell wall thickening induction by organism of defense-related cell wall thickening in other organism involved in symbiotic interaction GO:0052290 positive regulation by organism of host defensive cell wall thickening biological_process positive regulation by organism of defense-related cell wall thickening in other organism involved in symbiotic interaction activation by organism of defense-related host cell wall thickening This term was obsoleted because it is a host, not a symbiont process, but was formulated as a symbiont process. GO:0052538 up regulation by symbiont of defense-related host cell wall thickening GO:0052539 induction by organism of host defensive cell wall thickening stimulation by symbiont of defense-related host cell wall thickening GO:0052105 activation by organism of host defensive cell wall thickening OBSOLETE. The activation by an organism of host processes resulting in the thickening of its cell walls, occurring as part of the defense response of the host organism. The host is defined as the larger of the organisms involved in a symbiotic interaction. up-regulation by symbiont of defense-related host cell wall thickening activation by symbiont of defense-related host cell wall thickening upregulation by symbiont of defense-related host cell wall thickening