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First Report of Gray Mold Disease on Endangered Species Cypripedium japonicum

Mycobiology 2020년 48권 5호 p.423 ~ 426
전창욱, Kim Da-Ran, Gang Geun-Hye, 김병부, 김남호, 남성열, 곽연식,
소속 상세정보
전창욱 ( Jeon Chang-Wook ) - Gyeongsang National University Division of Applied Life Science
 ( Kim Da-Ran ) - Gyeongsang National University Department of Plant Medicine
 ( Gang Geun-Hye ) - Korea National Park Institute for Biodiversity Conservation
김병부 ( Kim Byung-Bu ) - Korea National Park Institute for Biodiversity Conservation
김남호 ( Kim Nam-Ho ) - Korea National Park Institute for Biodiversity Conservation
남성열 ( Nam Seong-Yeol ) - Korea National Park Institute for Biodiversity Conservation
곽연식 ( Kwak Youn-Sig ) - Gyeongsang National University Division of Applied Life Science

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.

키워드

Botrytis cinerea; Cypripedium japonicum; endangered species

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