doi: 10.4489/KJM.2026.54.2.7 Citation BibTeX RIS Mendeley

Morphology and Multilocus Phylogeny of Septoria dearnessii Associated with Leaf Spots on Heracleum moellendorffii in Korea

Morphology and Multilocus Phylogeny of Septoria dearnessii Associated with Leaf Spots on Heracleum moellendorffii in Korea

• Min-Jun Ko (Department of Forest Resources, Kookmin University, Seoul 02707, Korea)
• Kyoung-Mo Koo (Department of Forest Resources, Kookmin University, Seoul 02707, Korea)
• Gyo-Seon Shin (Forest Carbon Graduate School, Kookmin University, Seoul 02707, Korea)
• Jin-Woo Park (Department of Forest Resources, Kookmin University, Seoul 02707, Korea)
• Ho-Jun Son (Forest Medicinal Resources Research Center, Yeongju 36040, Korea)
• Ji-Hyun Park (Department of Forest Resources, Kookmin University, Seoul 02707, Korea)
• Hyeon-Dong Shin (Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Korea)

This study aims to identify and characterize the fungus associated with leaf spot symptoms on Heracleum moellendorffii (Apiaceae) in Korea. Diseased leaf samples were collected from three locations in Korea, and fungal isolates were obtained and examined. Its morphological characteristics were consistent with those of the genus Septoria. In multilocus phylogenetic analyses using the internal transcribed spacer region, the large subunit rDNA, translation elongation factor 1-alpha, and β-tubulin gene sequences, the isolates formed a distinct lineage within the Septoria dearnessii clade, indicating that they are closely related to S. dearnessii but genetically differentiated. This study provides the first report of a Septoria species associated with leaf spot on H. moellendorffii.