Journal of Ginseng Research
- Volume 24 Issue 2
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- Pages.53-57
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- 2000
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- 1226-8453(pISSN)
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- 2093-4947(eISSN)
Effect of Ultrasonic treatment on the Isolation of the Chlamydospores of Cylindrocarpon destructans Causing Root rot of Panax ginseng
초음파처리에 의한 인삼 뿌리썩음병균 Cylindrocarpon destructans 후막포자의 분리
Abstract
Chlamydospores were isolated from hyphae of Cylindrocanon destmctans by homogenization and/or ultrasonic treatment. Rate of the isolated chlamydospores by the homogenization with glass tissue grinder were 9.8% of all total chlamydospores formed in the culture of C. destructans. The length of mycelial fragments after the homogenization was about 400㎛ They were, however, formed in clusters of the chlamydospores and the mycelia The rate of the isolated chlamydospores from additional ultrasonic treatment after the homogenization of the mycelia were 74.3%. The length of mycelial fragments with the ultrasonic treatment was about 20 fm and chlamydospores seemed to be isolated from the mycelial mats and dispersed evenly in the culture. The numbers of chlamydospore in a catena were 1 to 8 cells after the homogenization on potato dextrose agar (PDA). Meanwhile the numbers of them after added ultrasonic treatment were 1 to 4 cells. Germination percentages of the isolated chlamydospores from the ultrasonic treatment were 46.8% after incubation of 2 days on PDA at 20。C and 60.7% after incubation of 13 days at 5。C, respectively. Germination rate of chlamydospores to the total chlamydospores produced by the ultrasonic treatment was 55.8%. However, it was increased to 74% when it was measured in the germinated catenae to the total catenae.
인삼 뿌리썩음병균 Cylindrocarpon destructans 균사체를 homogenization 단독 처리로 분쇄할 경우 균사체 절편길이는약 400