doi: 10.4489/KJM.2025.53.1.2 Citation BibTeX RIS Mendeley

First Report of Magnusiomyces magnusii Isolated in Korea

First Report of Magnusiomyces magnusii Isolated in Korea

• Tae-Gyeong Kim (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Song-Woon Nam (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Seong-Keun Lim (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Chang-Gi Back (Department of Environmental Horticulture and Landscape Architecture, Environmental Horticulture, Dankook University, Cheonan 31116, Korea)
• Seung-Yeol Lee (Department of Plant Medicine & Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Leonid N. Ten (Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Hee-Young Jung (Department of Plant Medicine & Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)

In 2020, a fungal isolate, designated KNUF-20-112, was obtained from a female rhinoceros beetle (Allomyrina dichotoma) collected in Yangpyeong, Gyeonggi-do, Korea. The isolate formed white, glassy colonies with smooth margins on 4% malt extract/0.5% yeast extract agar. The hyphae measured 6.48–11.24 µm in width and appeared expanded and rigid. Arthroconidia were rectangular in shape, measuring 5.23–9.81 × 13.25–21.41 µm. These morphological characteristics closely matched those of Magnusiomyces magnusii CBS 108.12T. Phylogenetic analyses based on concatenated sequences of the internal transcribed spacer regions (ITS) and large subunit (LSU) gene confirmed the similarity of strain KNUF-20112 with M. magnusii. To our knowledge, this is the first study to document M. magnusii in Korea.