초음파처리에 의한 인삼 뿌리썩음병균 Cylindrocarpon destructans 후막포자의 분리 ( Effect of Ultrasonic treatment on the Isolation of the Chlamydospores of Cylindrocarpon destructans Causing Root rot of Panax ginseng )

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 mycelia...

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Bibliographic Details
Published inJournal of ginseng research Vol. 24; no. 2; pp. 53 - 57
Main Authors 조대휘, 유연현
Format Journal Article
LanguageKorean
Published 고려인삼학회 2000
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Summary: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$\mu\textrm{m}$이고 용액내에 복잡하게 뭉쳐있으며 후막포자의 순수분리율은 9.8%로 측정되었다. 그러나 homogenization으로 전처리 한후 초음파 처리를 부가하여 실시한 결과, 처리시간 20초 경과부터 분쇄된 균사체는 용액내에 고루 분포되었고 90초간 초음파 처리후에는 균사체 길이가 20$\mu\textrm{m}$ 정도로 되었으며 전체 후막포자중 74.3%의 후막포자가 균사체로부터 분리되었다. C. destructans 균사체의 homogenization단독처리시 후막포자들의 사슬은 세포수 I~8개로 형성된 것이 관찰되나 초음파를 부가로 처리한 결과 I~4개의 후막포자 세포로 구성된 사슬만이 관찰되었다. 초음파 처리로서 분리된 후막포자 사슬중에서 각 구성세포의 발아율은 potato dextrose agar(PDA)에서 20。C, 2일간배양한 결과 46.8%로 측정되었으며 5줄에서 13일간으로 장기간 배양한 결과 발아율은 60.7%로 측정되었다. C. destructans 균사체를 초음파처리하여 분리된 후막포자는 20。C, PDA배지 배양조건에서 총 후막포자 세포수에 대해 발아한 후막포자 세포의 발아율은 55.8%이며 총 후막포자 사슬군(catenae)에 대해서 발아한 각 후막포자 사슬군의 발아율은 73.4%의 비율로 측정되었다.
Bibliography:KISTI1.1003/JNL.JAKO200011921395985
ISSN:1226-8453
2093-4947