Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Occurrence of Target Spot of Tomato Caused by Corynespora cassiicola in Korea

Corynespora cassiicola에 의한 토마토 갈색무늬병(가칭)의 발생

  • Kim, Jong Tae (Graduate School, Chungnam National University) ;
  • Yu, Seung Hun (Department of Agricultural Biology, College of Agriculture, Chungnam National University) ;
  • Yun, Hae Keun (Graduate School, Chungnam National University)
  • Published : 1990.12.31
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Abstract

A Corynespora species was isolated from brown target spots developed on leaves of tomato. The fungus was identified as Corynespora cassiicola and proved to be pathogenic to tomato plants. Growth of the fungus in vitro was optimum at $27^{\circ}C$, and poor at 19 and $35^{\circ}C$. Sporulation was abundant on potato dextrose malt agar and moderate on V-8 juice agar, potato dextrose agar and Czapek agar.

토마토잎에 발생한 갈잭의 둥근 윤문병반에서 분리한 Carynespara sp.는 C. cassiicola로 동정되었으며 이 균을 접종 실험한 결과 토마토에 병원성을 나타내었다. 이 균의 생장적온은 $27^{\circ}C$였으며 $19^{\circ}C$와 $35^{\circ}C$에서는 균총생장이 저조하였다. 포자형성은 potato dextrose malt agar에 서 매우 양호하였으며 V-8 juice agar와 potato dextrose agar에서는 중간정도였다. 병원균을 인공배양하여 토마토 건전식물체에 분무접종하였을 때 자연상태에서와 유사한 갈색의 윤문을 형성하는 병징을 나타내었다.

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