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Identification of Erysiphe izuensis on Rhododendron yedoense f. poukhanense in Korea Based on Morphological and Molecular Characteristics

형태 특징 및 분자 분석에 의한 산철쭉 흰가루병균 Erysiphe izuensis 동정

  • Cho, Sung-Eun (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Lee, Sang-Hyun (Forest Insect Pests and Diseases Division, National Institute of Forest Science) ;
  • Lee, Sun-Keun (Forest Insect Pests and Diseases Division, National Institute of Forest Science) ;
  • Seo, Sang-Tae (Forest Insect Pests and Diseases Division, National Institute of Forest Science) ;
  • Shin, Hyeon-Dong (Division of Environmental Science and Ecological Engineering, Korea University)
  • 조성은 (고려대학교 환경생태공학부) ;
  • 이상현 (국립산림과학원 산림병해충연구과) ;
  • 이선근 (국립산림과학원 산림병해충연구과) ;
  • 서상태 (국립산림과학원 산림병해충연구과) ;
  • 신현동 (고려대학교 환경생태공학부)
  • Received : 2018.02.09
  • Accepted : 2018.02.20
  • Published : 2018.03.01

Abstract

The Rhododendron powdery mildew fungus Erysiphe izuensis has been recorded throughout Asia, including China, Japan, Korea, and Russia. In Korea, E. izuensis has been identified based on morphological characteristics of the anamorph found on introduced Rhododendron spp. We here describe the first identification of E. izuensis collected from Rhododendron yedoense f. poukhanense in Korea. Morphological characteristics of the teleomorph as well as internal transcribed spacer sequences of the species are provided. Moreover, we describe the characteristics of the primary conidia and conidial surface pattern of E. izuensis for the first time.

진달래속의 흰가루병균인 Erysiphe izuensis는 중국, 일본, 한국, 러시아 등 아시아에서만 기록되어있다. 한국에서는 무성세대의 형태적 특징에 의해, 도입된 진달래속 식물에서 E. izuensis가 기록되었다. 최근에 저자들은 산철쭉에서 흰가루병균을 국내에서 처음으로 채집하였다. 본 연구를 통하여 국내에서 E. izuensis의 유성세대의 형태적 특징과 internal transcribed spacer 염기서열을 처음으로 제공하였다. 게다가, 이 종에서 그 동안 알려지지 않았던 1차 분생포자와 분생포자의 표면구조 등 무성세대의 형태적 특징을 처음으로 기재하였다.

Keywords

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