obsolete catabolism by host of symbiont glucan https://github.com/geneontology/go-ontology/issues/21396 true biological_process OBSOLETE. The chemical reactions and pathways performed by an organism resulting in the breakdown of glucan molecules within the symbiont organism. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction. This term was obsoleted because there is no evidence it exists. GO:0052358