Mycobiology

The Korean Society of Mycology (한국균학회)
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Two Unrecorded Apiospora Species Isolated from Marine Substrates in Korea with Eight New Combinations (A. piptatheri and A. rasikravindrae)

  • Kwon, Sun Lul (Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University) ;
  • Cho, Minseo (Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University) ;
  • Lee, Young Min (Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University) ;
  • Kim, Changmu (Division of Biological & Genetic Resources Assessment, National Institute of Biological Resources) ;
  • Lee, Soo Min (Division of Wood Chemistry & Microbiology, National Institute of Forest Science) ;
  • Ahn, Byoung Jun (Division of Wood Chemistry & Microbiology, National Institute of Forest Science) ;
  • Lee, Hanbyul (Division of Polar Life Sciences, Korea Polar Research Institute) ;
  • Kim, Jae-Jin (Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University)
  • Received : 2021.11.17
  • Accepted : 2022.02.02
  • Published : 2022.02.28
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Abstract

Although Apiospora Sacc. has previously been considered a sexual morph of Arthrinium species on the basis of phylogenetic, morphological, and ecological diagnoses, a recent study delimited these as different species. Recently, 14 species, including eight new species, of marine Arthrinium have been reported from Korea. Six known species have previously been renamed as species in the genus Apiospora (A. arundinis, A. marii, A. piptatheri, A. rasikravindrae, A. sacchari, and A. saccharicola). However, the eight new species of marine Arthrinium (Ar. agari, Ar. arctoscopi, Ar. fermenti, Ar. koreanum, Ar. marinum, Ar. pusillispermum, Ar. sargassi, and Ar. taeanense) are yet to be studied, and thus the taxonomic status of these species remains to be clarified. In this study, we conducted phylogenetic analyses using the internal transcribed spacer, 28S large subunit ribosomal RNA gene, translation elongation factor 1-alpha, and beta-tubulin regions to confirm the phylogenetic position of these eight species. Based on these analyses, we re-identified the eight Arthrinium species as new combinations in Apiospora. Additionally, among the six known Apiospora species, two (A. piptatheri and A. rasikravindrae) have not previously been recorded in Korea. On the basis of morphological and molecular analyses, we report these as new species in Korea. Herein, we present scanning electron micrographs detailing the morphologies of these species, along with phylogenetic trees and detailed descriptions.

Keywords

Acknowledgement

This work was supported by the National Institute of Biological Resources under the Ministry of Environment, Republic of Korea [NIBR202203112], and National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIT) [2017R1A2B4002071 and 2021R1A2C1011894].

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