Tibolla, F.; Sumida, C. H.; Peitl, D. C.; Canteri, M. G.; Castro, A. M. C. Puccinia Kuehnii Urediniospores Viability and Its Germination Influenced by Aqueous Extracts of Leaves of Sugarcane. Semina: Ciênc. Agrár. 2013, 34, 2239-2246.