Mycobiology

The Korean Society of Mycology (한국균학회)
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Biological Characterization of Marssonina coronaria Associated with Apple Blotch Disease

  • Lee, Dong-Hyuk (Apple Experiment Station, National Horticultural Research Institute) ;
  • Back, Chang-Gi (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Win, Nang Kyu Kyu (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Choi, Kyung-Hee (Apple Experiment Station, National Horticultural Research Institute) ;
  • Kim, Kyung-Min (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Kang, In-Kyu (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Choi, Cheol (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Yoon, Tae-Myung (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Uhm, Jae-Youl (College of Agricultural and Life Sciences, Kyungpook National University) ;
  • Jung, Hee-Young (College of Agricultural and Life Sciences, Kyungpook National University)
  • Received : 2011.06.28
  • Accepted : 2011.08.12
  • Published : 2011.09.30
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Abstract

Marssonina coronaria associated with apple blotch disease causes severe premature defoliation, and is widely distributed in Korea. Thirteen isolates were collected from orchards located in Gyeongbuk Province from 2005~2007. All isolates displayed over 99.6% and 99.2% sequence similarity to each other in internal transcribed spacer regions and partial sequences of 28S rDNA, respectively. The isolates were phylogenetically closely related to Chinese isolates. Selected isolates did not differ in their pathogenicity. The optimum conditions for fungal growth were $20^{\circ}C$ and pH 6 on peptone potato dextrose agar (PPDA). Peptone and mannose were the best nitrogen and carbon source, respectively. Fungal growth was better on PPDA than on common potato dextrose agar. This study provides valuable information for integrated disease management program and facilitates the routine culturing of M. coronaria.

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References

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