First Report of Arbuscular Mycorrhizal Fungi in Korea: Acaulospora delicata, Dentiscutata colliculosa, and Racocetra alborosea.

Hyeok Park1   Kang-Hyeon Ka2   Ahn-Heum Eom1,*   

1Department of Biology Education, Korea National University of Education, Cheongju 28173, Korea
2Special Forest Products Division, National Institute of Forest Science, Suwon 16631, Korea


Spores of arbuscular mycorrhizal fungi (phylum Glomeromycota) were isolated from rhizosphere soil collected in Korea. We identified the morphological characteristics of the spores and performed a phylogenetic analysis using the rDNA 18S, 5.8S, and 28S regions. To the best of our knowledge, we confirm the presence of three species of glomeromycotan fungi previously not reported in Korea, namely Acaulospora delicata, Dentiscutata colliculosa, and Racocetra alborosea. We described the morphological characteristics and results of phylogenetic analysis of these species.

Figures & Tables

Fig. 1. Spores of Acaulospora delicata (A), in PVLG (B), in Melzer’s reagent (C); Spores of Dentiscutata colliculosa (D), in PVLG (E, F); Spores of Racocetra alborosea (G), in PVLG (H, I) (scale bars: A-C = 10 μm; D, G = 500 μm; E, F = 100 μm, H, I = 50 μm). GW: germination wall, L1 & L2: spore wall layers, IW: inner wall, OW: outer wall, SC: sporogenous cell, GS: germination shield.