느타리버섯과 잔나비걸상버섯과의 이목간(異目間) 원형질체(原形質體) 융합(融合)

Interorder Protoplast Fusion between Pleurotus ostreatus and Ganoderma applanatum

  • 유영복 (농촌진흥청 농업기술연구소 균이과) ;
  • 송문태 (농촌진흥청 농업기술연구소 균이과) ;
  • 고승주 (농촌진흥청 농업기술연구소 균이과) ;
  • 유창현 (농촌진흥청 농업기술연구소 균이과) ;
  • 차동열 (농촌진흥청 농업기술연구소 균이과) ;
  • 박용환 (농촌진흥청 농업기술연구소 균이과) ;
  • 장권열 (경상대학교 농과대학 농학과)
  • Yoo, Young-Bok (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • Song, Moon-Tae (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • Go, Seung-Joo (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • You, Chang-Hyun (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • Cha, Dong-Yeul (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • Park, Yong-Hwan (Applied Mycology and Mushroom Division, Agricultural Sciences Institute, R.D.A.) ;
  • Chang, Kwon-Yawl (Department of Agronomy, College of Agriculture, Gyeongsang National University)
  • 발행 : 1989.09.30

초록

주름버섯목(目) 느타리버섯과 민주름버섯목(目) 잔나비걸상버섯과의 이목간(異目間) 원형질체(原形質體)를 polyethylene glycol로 유도하여 융합주(融合株) heterokaryon을 선발하였다. 버섯최소배지에서 극히 균사생장이 느렸으며 버섯완전배지에서 3번 계대배양되면서 다소 생장이 빨라졌다. 융합주 36균주의 75%는 양친의 균사가 혼합된 균총형태였으며 16.7%는 새로운 형태, 8.3%는 느타리버섯 형태이었다. 이들 중 양친의 균총(菌叢)이 혼합된 형태는 3번 계대배양 후 모두 느타리버섯 형태로 변하였다. 균사(菌絲)에는 클램프연결체가 없었고 원기(原基)도 형성하지 않았다. 융합주(融合株)를 전기영동법으로 esterase, malate dehydrogenase, peroxidase의 동위효소(同位酵素) 분석(分析)으로 비교하였는데 잔나비걸상버섯 효소는 뚜렷하지 않았으나 새로운 밴드의 형성으로 보아 두 양친 genome간의 상호작용이 존재하였다.

Interorder heterokaryons were obtained by polyethylene glycol induced fusion of protoplasts from auxotrophic mutants of Pleurotus ostreatus in agaricales and Ganoderma applanaturm in aphyllophorales. When transferred to MMM plates, all fusion colonies exhibited an extremely growth rate. During three times subcultivation on MCM the growth rate of fusants showed faster little by little. Seventy-five % fusion products of potoplasts showed mixed morphologies between those of P. ostreatus and G. applannatum in the first subcultivation on MCM and MGM. The phenotype of these fusants changed similar those of P. osteatus type after three times subcultivation on MCM. However, phenotype of 25% stable strains did not change on subcultivation. Hyphae of all fusion products did not form true clamp connection. All these types did not produce primordia. A comparrison of interorder somatic hybrids was made using isozyme analysis of esterase, malate dehydrogenase and peroxidase. In most cases the enzyme patterns of G. applanatum were not distinct, however, fusant showed non-parental bands.

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