doi: 10.4489/KJM.2026.54.2.8 Citation BibTeX RIS Mendeley

Paradendryphiella arenariae and Diaporthe novem Isolated from Green Macroalga Codium fragile in Korea

Paradendryphiella arenariae and Diaporthe novem Isolated from Green Macroalga Codium fragile in Korea

• Tae-Ho Kim (Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea)
• Yu-Na Choi (Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea)
• Seong-Eun Kim (Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea)
• Ji-Won Kim (Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea)
• Ahn-Heum Eom (Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea)

In this study, two endophytic fungal species were isolated from the marine green macroalga Codium fragile collected from the intertidal zones of Korea. The endophytic strains were isolated from asymptomatic, healthy algal tissues after surface sterilization. Based on morphological characteristics and multi-locus phylogenetic analyses using internal transcribed spacer regions, nuclear large subunit ribosomal DNA, nuclear small subunit ribosomal DNA, translation elongation factor 1-alpha, and RNA polymerase II second largest subunit genes, these isolates were identified as Paradendryphiella arenariae KNUE25A105 and Diaporthe novem KNUE25A206. This study provides the first detailed morphological and molecular phylogenetic descriptions of these two endophytic species from macroalgae in Korea, thereby expanding our understanding of the biodiversity of marine-derived endophytic fungi in temperate coastal environments.