Rediscovery of Seven Long-Forgotten Species of Peronospora and Plasmopara (Oomycota)

Jae Sung Lee, Hyeon Dong Shin, Young Joon Choi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The family Peronosporaceae, an obligate biotrophic group of Oomycota, causes downy mildew disease on many cultivated and ornamental plants such as beet, cucumber, grape, onion, rose, spinach, and sunflower. To investigate the diversity of Peronosporaceae species in Korea, we performed morphological analysis for dried plant herbariums with downy mildew infections by two largest genera, Peronospora and Plasmopara. As a result, it was confirmed that there are five species of Peronospora and two species of Plasmopara, which have been so far unrecorded in Korea, as well as rarely known in the world; Pl. angustiterminalis (ex Xanthium strumarium), Pl. siegesbeckiae (ex Siegesbeckia glabrescens), P. chenopodii-ambrosioidis (ex Chenopodium ambrosioides), P. chenopodii-ficifolii (ex Chenopodium ficifolium), P. clinopodii (ex Clinopodium cf. vulgare), P. elsholtziae (ex Elsholtzia ciliata), and P. lathyrina (ex Lathyrus japonicus). In addition, their phylogenetic relationship was inferred by molecular sequence analysis of ITS, LSU rDNA, and cox2 mtDNA. By rediscovering the seven missing species and barcoding their DNA sequences, this study provides valuable insights into the diversity and evolutionary studies of downy mildew pathogens.

Original languageEnglish
Pages (from-to)331-340
Number of pages10
Issue number5
Publication statusPublished - 2020 Sept 2

Bibliographical note

Funding Information:
This study was supported by grants from the National Institute of Biological Resources (NIBR), funded by of the Ministry of Environment (MOE) and the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT & Future Planning (2019R1C1C1002791), Republic of Korea.

Publisher Copyright:
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of the Korean Society of Mycology.


  • Barcoding
  • Peronosporaceae
  • downy mildew
  • morphology
  • phylogenetic analysis

ASJC Scopus subject areas

  • Microbiology
  • Infectious Diseases


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