Mycobiology

The Korean Society of Mycology (한국균학회)
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First Report of Gray Mold Disease on Endangered Species Cypripedium japonicum

  • Jeon, Chang-Wook (Division of Applied Life Science (BK21 Plus), Gyeongsang National University) ;
  • Kim, Da-Ran (Department of Plant Medicine and Institute of Agriculture & Life Sciences, Gyeongsang National University) ;
  • Gang, Geun Hye (Korea National Park Institute for Biodiversity Conservation) ;
  • Kim, Byung-Bu (Korea National Park Institute for Biodiversity Conservation) ;
  • Kim, Nam Ho (Korea National Park Institute for Biodiversity Conservation) ;
  • Nam, Seong-Yeol (Korea National Park Institute for Biodiversity Conservation) ;
  • Kwak, Youn-Sig (Division of Applied Life Science (BK21 Plus), Gyeongsang National University)
  • Received : 2020.04.27
  • Accepted : 2020.07.05
  • Published : 2020.10.31
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Abstract

Cypripedium japonicum is known to be the indigenous plant to Korea, Japan, and China. However, C. japonicum represents the most critically endangered plant species in South Korea. The plant is esthetically pleasing due to its flower, which is larger than any other orchidaceous species. Disease symptoms relating to gray mold were observed on C. japonicum in May 2019. The suspected pathogen was successfully isolated from the symptomatic leaf tissue and conducted a pure culture of the fungi. The conidia formed consisted of a colorless or light brown single cell, which was either egg or oval-shaped with a size of 7.1 to 13.4 × 5.2 to 8.6 ㎛. Molecular phylogenetic relationship analysis was also confirmed that the pathogen concerned belonging to the family of Botrytis cinerea. Therefore, the findings confirmed that the pathogen isolated from C. japonicum was consistent with the unique properties of B. cinerea.

Keywords

References

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