The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Unreported Post-harvest Disease of Apples Caused by Plenodomus collinsoniae in Korea

  • Das, Kallol (School of Applied Biosciences, Kyungpook National University) ;
  • Kim, Yeong-Hwan (School of Applied Biosciences, Kyungpook National University) ;
  • Yoo, Jingi (Tree Fruit Research and Extension Center, Washington State University) ;
  • Ten, Leonid N. (School of Applied Biosciences, Kyungpook National University) ;
  • Kang, Sang-Jae (School of Applied Biosciences, Kyungpook National University) ;
  • Kang, In-Kyu (Department of Horticultural Science, Kyungpook National University) ;
  • Lee, Seung-Yeol (School of Applied Biosciences, Kyungpook National University) ;
  • Jung, Hee-Young (School of Applied Biosciences, Kyungpook National University)
  • Received : 2020.11.02
  • Accepted : 2020.12.21
  • Published : 2020.12.31
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Abstract

This study was conducted to isolate and identify the fungal pathogen caused unreported post-harvest disease on apples (cv. Fuji) fruit in Korea. The disease symptoms on apples appeared as irregular, light to dark brown, slightly sunken spots. The three fungal strains were isolated from infected tissues of apple fruits and their cultural and morphological characteristics were completely consistent with those of Plenodomus collinsoniae. The phylogenetic analysis using the internal transcribed spacer (ITS) regions, beta-tubulin (TUB), and the second largest subunit of RNA polymerase II (RPB2) sequences revealed the closest relationship of the isolates with Plenodomus collinsoniae at the species level. The pathogenicity test showed the same dark brown spots on Fuji apple cultivar. Therefore, P. collinsoniae is a newly reported fungal agent causing post-harvest disease on apples in Korea.

Keywords

References

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