Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Occurrence of Powdery Mildew of Japanese Plum Caused by Podosphaera tridactyla in Korea

Podosphaera tridactyla에 의한 자두나무 흰가루병 발생

  • Lee, Seong-Chan (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Han, Kyung-Sook (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Cho, Sung-Eun (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Park, Ji-Hyun (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Shin, Hyeon-Dong (Division of Environmental Science and Ecological Engineering, Korea University)
  • 이성찬 (국립원예특작과학원 원예특작환경과) ;
  • 한경숙 (국립원예특작과학원 원예특작환경과) ;
  • 조성은 (고려대학교 환경생태공학부) ;
  • 박지현 (고려대학교 환경생태공학부) ;
  • 신현동 (고려대학교 환경생태공학부)
  • Received : 2012.02.02
  • Accepted : 2012.03.02
  • Published : 2012.04.30
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Abstract

Occurrence of powdery mildew was found on Japanese plum (Prunus salicina) growing in private gardens in Yanggu, Hongcheon, Hoengseong, and Gapyeong of central Korea, in 2011. Despite of extensive survey, however, there was no powdery mildew infection in commercial orchards of Japanese plum in Korea. The initial symptoms included white, evanescent mycelia and irregular patches on leaves and young stems. Infected leaves later showed partial distortion and diffuse red-purple discoloration. Based on morphological characteristics of holomorph and phylogenetic analysis, the causal fungus was identified as Podosphaera tridactyla. This is the first report of powdery mildew on Japanese plum in Korea.

2011년에 양구, 홍천, 횡성, 가평 등 중부지방에서 가족 소비용 또는 관상용으로 식재된 자두나무에 흰가루병이 발생하였다. 상당한 조사에도 불구하고 우리나라 자두나무 과수원에서는 흰가루병이 발견되지 않았다. 초기 병징은 잎과 어린 줄기에 균사층이 흰색으로 얇고 불규칙하게 나타났다. 나중에는 잎이 부분적으로 기형으로 뒤틀렸고 적자색으로 변색되었다. 무성세대 및 유성세대의 형태적 검경과 함께 ITS 영역의 염기서열 분석을 통하여 이 병원균을 Podosphaera tridactyla로 동정하였다. 이는 우리나라에서 자두나무 흰가루병을 처음으로 보고하는 것이다.

Keywords

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