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Sclerotium Rot of Cyclamen europaeum Caused by Sclerotium rolfsii

Sclerotium rolfsii에 의한 시클라멘 흰비단병

  • Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Lee, Heung-Su (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Jinwoo (Institute of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Kim, Won-Il (National Academy of Agricultural Science, Rural Development Administration) ;
  • Shim, Hong-Sik (National Academy of Agricultural Science, Rural Development Administration) ;
  • Shen, Shun-Shan (College of Plant Protection, Henan Agricultural University)
  • Received : 2014.06.17
  • Accepted : 2014.08.25
  • Published : 2014.09.30

Abstract

Sclerotium rot caused by Sclerotium rolfsii occurred on Cyclamen europaeum grown at the experimental greenhouse of Gyeongsangnam-do Agricultural Research and Extension Services in April 2013. Infected plants showed water-soaked appearance, wilting, and rotting; severely infected plants eventually died. White mycelial mats spread over lesions, and sclerotia were formed on leaves, petioles, and flower stalks near soil line. On the basis of mycological characteristics, ITS rDNA sequence analysis, and pathogenicity to host plants, this fungus was identified as S. rolfsii Saccardo. This is the first report of sclerotium rot on C. europaeum caused by S. rolfsii in Korea.

2013년 4월 경상남도농업기술원 유리 온실에서 Sclerotium rolfsii에 의한 시클라멘 흰비단병 증상이 발생하였다. 병징은 시클라멘의 잎과 잎자루, 꽃자루 부분이 수침상으로 물러지고 부패되면서 시들어 말라 죽는다. 병반부와 토양 표면에 흰색의 곰팡이가 발생하며 갈색의 작은 둥근 균핵이 많이 형성되었다. 감자한천배지에서 균총은 흰색이고 잘 자라며 배양기간이 경과됨에 따라 갈색의 작은 둥근 균핵을 많이 형성하였다. 시클라멘에서 발생한 병징과 병원균의 균학적 특징, 그리고 ITS rDNA 염기서열 비교분석 결과, 이 병을 S. rolfsii Saccardo에 의한 시클라멘 흰비단병으로 명명하고자 제안한다.

Keywords

References

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