First Report of Gray Mold Disease on Endangered Species Cypripedium japonicum
10.1080/12298093.2020.1794215
- Author:
Chang-Wook JEON
1
;
Da-Ran KIM
;
Geun Hye GANG
;
Byung-Bu KIM
;
Nam Ho KIM
;
Seong-Yeol NAM
;
Youn-Sig KWAK
Author Information
1. Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, Republic of Korea
- Publication Type:RESEARCH NOTE
- From:Mycobiology
2020;48(5):423-426
- CountryRepublic of Korea
- Language:English
-
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 μm. 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.
