[Pathogenicity of Phylloporia chrysita (Aphyllophorales: Hymenochaetaceae) on Erythrochiton gymnanthus (Rutaceae)]. / Patogenicidad de Phylloporia chrysita (Aphyllophorales: Hymenochaetaceae) sobre Erythrochiton gymnanthus (Rutaceae).

The pathogenicity of Phylloporia chrysita (Berk.) Ryv. on Erythrochiton gymnanthus K. (Rutaceae) was studied in Carara Biological Reserve, seasonal Pacific of Costa Rica. Growth rate and distribution of basidiocarps were determined on health and diseased plants. P. chrysita caused 52% growth reduction on diseased plants. Fungal hyphae were observed on epidermis, parenchyma and vascular tissue, where they caused cellular breakdown.