한국균학회지 (The Korean Journal of Mycology)

  • 제51권2호
  • /
  • Pages.141-146
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  • 2023
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  • 0253-651X(pISSN)
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  • 2383-5249(eISSN)
한국균학회 (The Korean Society of Mycology)
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Stem Rot of Gondre Caused by Rhizoctonia solani AG-2-2(IV)

  • 투고 : 2023.05.30
  • 심사 : 2023.06.27
  • 발행 : 2023.06.30
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초록

Stem rot symptoms were observed in Gondre (Cirsium setidens) plants growing in a vinyl greenhouse in Taebaek, Korea during a disease survey in June 2022. The plants presented with dark brown to black rot on the stems at or above the soil line. Severely diseased plants displayed wilt and blight. Disease incidence among these plants ranged from 1 to 5%. Three isolates of Rhizoctonia sp. were obtained from the stem lesions of diseased plants. All isolates were identified as Rhizoctonia solani AG-2-2(IV) based on the morphological and cultural characteristics, results of the anastomosis test, and phylogenetic analysis. The pathogenicity of the isolates to Gondre plants was confirmed using an artificial inoculation test. The lesions induced by the inoculation test were similar to those observed in the investigated vinyl greenhouse. Here, we report a case of R. solani AG-2-2(IV) causing stem rot in Gondre.

키워드

과제정보

This study was supported by a research grant (PJ014507012022) from the Rural Development Administration, Korea.

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