Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Crown and Foot Rot of Grafted Cucumber Caused by Fusarium solani f. sp. cucurbitae

Fusarium solani f. sp cucurbitae에 의한 오이 근경썩음병

  • Han, Kyung-Sook (Horticultural & Herbal Environment Division, National Institute of Horticultural and Herbal Science, RDA) ;
  • Lee, Seong-Chan (Horticultural & Herbal Environment Division, National Institute of Horticultural and Herbal Science, RDA) ;
  • Han, You-Kyoung (Horticultural & Herbal Environment Division, National Institute of Horticultural and Herbal Science, RDA) ;
  • Kim, Dong-Hwi (Ginseng Research Division, National institute of Horticultural and Herbal Science, RDA) ;
  • Kim, Sui (Vegetable Research Division, National institute of Horticultural and Herbal Science, RDA)
  • 한경숙 (국립원예특작과학원 원예특작환경과) ;
  • 이성찬 (국립원예특작과학원 원예특작환경과) ;
  • 한유경 (국립원예특작과학원 원예특작환경과) ;
  • 김동휘 (국립원예특작과학원 인삼과) ;
  • 김수 (국립원예특작과학원 채소과)
  • Received : 2011.12.07
  • Accepted : 2012.03.08
  • Published : 2012.04.30
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Abstract

In March 2010, grafted cucumber cultivated in the greenhouse showed a severe rot on crown resulting yellowing and wilting of the leaves. The symptoms of naturally infected plants showed dark brown, watersoaked lesions at the base of the stem. The fungus produced mass of white mycelium and yellow to orange spores in necrotic lesions on dead and dying plants. Fungus was isolated from rotted tissues of the crown and root. On the basis of morphological characteristics, ITS sequence and pathogenicity tests, the isolate was identified as Fusarium solani f. sp. cucurbitae. This is the first report of the crown and foot rot of grafted cucumber caused by F. solani f. sp. cucurbitae in Korea.

2010년 3월 경기도 평택시 오이 시설재배농가에서 오이의 지제부 줄기가 썩으면서 시들어 죽는 증상이 발생하였다. 대목은 흑종호박을 사용하였으며, 대목줄기가 수침상으로 썩고 표면에 흰색 내지 분홍색의 곰팡이가 형성된 것을 확인할 수 있었으며, 병든 식물체 줄기에서 병원균을 분리하여 균학적 특징을 파악하고 배양적 특성을 검토한 결과 Fusarium solani f. sp. cucurbitae로 동정되었다. 따라서 본 연구에서 얻어진 결과를 가지고 이 병을 F. solani f. sp. cucurbitae에 의한 오이 근경썩음병(Crown and Foot Rot)으로 제안하고자 한다.

Keywords

References

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