The chemical reactions and pathways resulting in the breakdown of 2,5-dihydroxypyridine to form fumarate. 2,5-dihydroxypyridine is dioxygenated to give maleamate and formate; the maleamate from this reaction is then converted to maleate, which is then isomerized to fumurate.
pyridine-2,5-diol catabolic process to fumarate