Mycobiology

The Korean Society of Mycology (한국균학회)
권호 표지
DOI QR코드

DOI QR Code

Mitrula aurea sp. nov., A New Aero-Aquatic Species from the Republic of Korea

  • Sung-Eun Cho (Forest Biodiversity Division, Korea National Arboretum) ;
  • Hyung So Kim (Forest Biodiversity Division, Korea National Arboretum) ;
  • Young-Nam Kwag (Forest Biodiversity Division, Korea National Arboretum) ;
  • Dong-Hyeon Lee (Divison of Forest Insect Pests and Diseases, National Institute of Forest Science) ;
  • Jae-Gu Han (Mushroom Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Chang Sun Kim (Forest Biodiversity Division, Korea National Arboretum)
  • Received : 2022.03.21
  • Accepted : 2022.06.30
  • Published : 2022.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

The genus Mitrula (Mitrulaceae, Helotiales), as also known as swamp beacons, inhabits submerged, decaying vegetation in standing or decaying needles, twigs, leaves, and shallow water. They play an important role in carbon cycling in some freshwater ecosystems. In the herbarium of the Korea National Arboretum (KH), seven Mitrula specimens were collected during mushroom forays in the period from 2019 to 2021. The Korean collections were found to be macromorphologically closely related to M. paludosa and M. elegans, but micro-morphologically they could be distinguished by characteristics of slightly narrower asci and aseptate ascospores. Our molecular phylogenetic analyses of the internal transcribed spacer (ITS) and 28S rDNA regions also revealed that our specimens were related to M. paludosa and M. elegans, but formed a distinct clade. Based on these results, we reported our specimens as new to science and discussed the phylogeny and diversity of Mitrula species.

Keywords

Acknowledgement

This research was supported by a research fund from the Korea National Arboretum (Project No.: KNA1-1-25, 19-2) and the Research Program of Agricultural Science and Technology Development (PJ01437001) of the National Institute of Horticultural and Herbal Science.

References

  1. Redhead SA. The genus Mitrula in North America. Can J Bot. 1977;55(3):307-325. https://doi.org/10.1139/b77-042
  2. Wang Z, Binder M, Hibbett DS. Life history and systematics of the aquatic discomycete Mitrula (Helotiales, Ascomycota) based on cultural, morphological, and molecular studies. Am J Bot. 2005;92(9):1565-1574. https://doi.org/10.3732/ajb.92.9.1565
  3. Raja H, Miller A, Shearer C. Freshwater ascomycetes: Aquapoterium pinicola, a new genus and species of Helotiales (Leotiomycetes) from Florida. Mycologia. 2008;100(1):141-148. https://doi.org/10.1080/15572536.2008.11832506
  4. Gulis V, Baschien C, Marvanov a L. Two new Tricladium species from streams in Alaska. Mycologia. 2012;104(6):1510-1516. https://doi.org/10.3852/12-081
  5. Johnston PR, Quijada L, Smith CA, et al. A multigene phylogeny toward a new phylogenetic classification of Leotiomycetes. IMA Fungus. 2019;10:1.
  6. Ekanayaka AH, Hyde KD, Gentekaki E, et al. Preliminary classification of Leotiomycetes. Mycosphere. 2019;10(1):310-489. https://doi.org/10.5943/mycosphere/10/1/7
  7. Schoch CL, Wang Z, Townsend JP, et al. Geoglossomycetes cl. nov., Geoglossales ord. nov. and taxa above class rank in the Ascomycota Tree of Life. Persoonia. 2009;22:129-138. https://doi.org/10.3767/003158509X461486
  8. Seok SJ, Lim YW, Kim CM, et al. List of mushrooms in Korea. Seoul: Korea Society of Mycology; 2013.
  9. Park Y-W, Koo C-D, Hong D-E, et al. Note on the new record of Mitrula paludosa (Geoglossaceae) in Korea. Kor J Mycol. 2009;37(1):104-107. https://doi.org/10.4489/KJM.2009.37.1.104
  10. Gernandt DS, Camacho FJ, Stone JK. Meria laricis, an anamorph Rhabdocline. Mycologia. 1997;89(5):735-744. https://doi.org/10.1080/00275514.1997.12026840
  11. Vu D, Groenewald M, Vries MD, et al. Large-scale generation and analysis of filamentous fungal DNA barcodes boosts coverage for kingdom fungi and reveals thresholds for fungal species and higher taxon delimitation. Stud Mycol. 2019;92:135-154. https://doi.org/10.1016/j.simyco.2018.05.001
  12. Hustad VP, Miller AN. Phylogenetic placement of four genera within the Leotiomycetes (Ascomycota). N Am Fungi. 2011;6(9):1-13.
  13. Katoh K, Standley DM. MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Mol Biol Evol. 2013;30(4):772-780. https://doi.org/10.1093/molbev/mst010
  14. Hall TA. BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symp Ser. 1999;41:95-98.
  15. Kumar S, Stecher G, Tamura K. MEGA7: Molecular Evolutionary Genetics Analysis Version 7.0 for bigger datasets. Mol Biol Evol. 2016;33(7):1870-1874. https://doi.org/10.1093/molbev/msw054
  16. Wang Z, Binder M, Schoch CL, et al. Evolution of helotialean fungi (Leotiomycetes, Pezizomycotina): a nuclear rDNA phylogeny. Mol Phylogenet Evol. 2006;41(2):295-312. https://doi.org/10.1016/j.ympev.2006.05.031
  17. Verkley GJM. Ultrastructure of the apical apparatus in Leotia lubrica and some Geoglossaceae (Leotiales, Ascomycotina). Persoonia. 1994;15:405-430.
  18. Eriksson OE, Baral HO, Currah RS, et al. Outline of Ascomycota-2004. Myconet. 2004;10:1-99.