Research in Plant Disease 2006;12(1):40-45.
Published online April 30, 2006.
저항성 유도물질(acibenzolar-S-methyl) 처리에 의한 토마토 잿빛곰팡이병 발병억제
이중섭, 강남준, 서상태, 한경숙, 박종한, 장한익
Induction of Disease Resistance by Acibenzolar-S-methyl, the Plant Activator against Gray Mold (Botrytis cinerea) in Tomato Seedlings
Jung Sup Lee, Nam Jun Kang, Sang Tae Seo, Kyoung Suk Han, Jong Han Park, Han Ik Jang
The plant defence activator, Acibenzolar-S-methyl [benzo (1,2,3) thiadiazole-7-carbothioic acid-S-methyl ester, ASM] was assayed on tomato seedlings for its ability to induce resistance against Botrytis cinerea, the causal agent of gray mold in tomato. Pre-treatment of plants with ASM reduced the severity of the disease as well as the growth of the mycelium in plants. In ASM treated plants, reduction in disease severity (up to 55%) was correlated with suppression of mycelia growth (up to 46.5%) during the time course of infection. In plants treated with ASM, activities of peroxidase were determined as markers of resistance. Applications of ASM induced progressive and significant increase of the enzyme in locally treated tissues. Such responses were expressed earlier and with a much higher magnitude when ASM-treated seedlings were challenged with the pathogen, thus providing support to the concept that a signal produced by the pathogen is essential for triggering enhanced synthesis and accumulation of the enzymes. No such activities were observed in water-treated control plants. Therefore, the slower symptom development and reduction in mycelium growth in ASM treated plants might be due to the increase in activity of oxidative and antioxidative protection systems in plants.
Key Words: Acibenzolar-S-methyl, Botrytis cinerea, Peroxidase, Systemic acquried resistance
METRICS Graph View
  • 104 View
  • 0 Download
Related articles

Editorial Office
Rm,904 (New Bldg.) The Korean Science & Technology Center 22, Teheran-ro 7-gil, Gangnam-gu, Seoul 06130, Korea
Tel: +82-2-557-9360    Fax: +82-2-557-9361    E-mail:                

Copyright © 2021 by The Korean Society of Plant Pathology.

Developed in M2PI

Close layer
prev next