doi: 10.4489/KJM.2026.54.2.6 Citation BibTeX RIS Mendeley

Identification of the Yeast-like Fungus Acaromyces ingoldii Newly Recorded in Korea

Identification of the Yeast-like Fungus Acaromyces ingoldii Newly Recorded in Korea

• Che-Yeon Park (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Seong-Keun Lim (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Seo-Ryeong Lee (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Hae-Dam Kim (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• Seung-Yeol Lee (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea & Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)
• HeeYoung Jung (Department of Plant Medicine, Kyungpook National University, Daegu 41566, Korea & Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea)

The fungal strain, designated KNUF-25-GA222, was collected from Miryang-si, Gyeongnam province, Korea and was identified as a previously unreported species within the genus Acaromyces. When cultivated on potato dextrose agar and yeast extract peptone glucose agar, blastoconidial production was observed, and the strain KNUF-25-GA222 was determined to be a yeast-like fungus based on its morphological characteristics. Molecular phylogenetic analyses were performed using concatenated nucleotide sequences from the internal transcribed spacer (ITS) region and 28S rRNA (LSU) gene to determine its taxonomic position and evolutionary relationships. The results revealed that the strain belonged to the genus Acaromyces, with high sequence similarities of 99.6% and 100% to A. ingoldii CBS 10536 in the ITS region and the LSU gene, respectively. Phylogenetic and morphological evidence collectively supports the identification of KNUF-25-GA222 as the asexual morph of A. ingoldii. To the best of our knowledge, A. ingoldii was confirmed as a previously unreported species in Korea.