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First Report of Gray Mold Disease on Endangered Species Cypripedium japonicum.

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??m. 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.

SUBMITTER: Jeon CW

PROVIDER: S-EPMC7580558 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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First Report of Gray Mold Disease on Endangered Species Cypripedium japonicum.

Jeon Chang-Wook CW Kim Da-Ran DR Gang Geun Hye GH Kim Byung-Bu BB Kim Nam Ho NH Nam Seong-Yeol SY Kwak Youn-Sig YS

Mycobiology 20200720 5

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 ...[more]

PMID: 33177922

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