in taxon disease causes dysfunction of disease has infectious agent Puccinia triticina Triticum aestivum vascular leaf plant disease wheat fungal disease wheat leaf rust fungal disease PSO:cooperl 0000-0002-9013-5974 A wheat disease caused by a Puccinia triticina affecting a vascular leaf. Symptoms and signs: brown rust uredinial pustules turn into black telial pustules in late plant growth stages. APSNET:Wheat brown rust plant_stress_ontology