Production of Host-specific Toxin by Alternaria mali and its Biological Activity

사과점무늬낙엽병균(Alternaria mali)이 생성(生成)하는 기주특이적(寄主特異的) 독소(毒素)와 그의 생물활성(生物活性)

  • Yu, Seung-Hun (Dept. of Agric. Biology, College of Agriculture, Chungnam National University) ;
  • Shim, Hyeong-Kwon (Dept. of Agric. Biology, College of Agriculture, Chungnam National University) ;
  • Park, Jong-Seong (Dept. of Agric. Biology, College of Agriculture, Chungnam National University)
  • 유승헌 (충남대학교 농과대학 농생물학과) ;
  • 심형권 (충남대학교 농과대학 농생물학과) ;
  • 박종성 (충남대학교 농과대학 농생물학과)
  • Published : 1987.09.01

Abstract

Pathogenic isolates of Alternaria mali produced host-specific toxin(AM-toxin) in liquid culture. The toxin was also released by germinating spores of the fungus. The physiological event of apple leaves induced by germinating spores was an increased loss of electrolytes from susceptible leaves. This reaction was evident soon after spore inoculation, indicating that the leakage was caused by AM-toxin from germinating spores. Typical symptoms were developed only in susceptible leaves of apple within 48hr after inoculation with pathogenic spores. Similar symptoms occurred on susceptible leaves when non-pathogenic isolates plus AM-toxin were used.

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