The Plant Pathology Journal
- 제16권5호
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- Pages.264-268
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- 2000
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- 2093-9280(eISSN)
Scopoletin Production Related to Induced Resistance of Tobacco Plants Against Tobacco mosaic virus
- Kim, Young-Ho (School of Agricultural Biotechnology, Seoul National University) ;
- Choi, Do-Il (Plant Celll Biotechnology Laboratory, Korea Research Institute of Bioscience) ;
- Yeo, Woon-Hyung (Korea Ginseng and Tobacco Research Institute) ;
- Kim, Young-Sook (Korea Ginseng and Tobacco Research Institute) ;
- Chae, Soon-Yong (Korea Ginseng and Tobacco Research Institute) ;
- Park, Eun-Kyung (Korea Ginseng and Tobacco Research Institute) ;
- Kim, Sang-Seock (Korea Tobacco and Ginseng Corporation)
- 발행 : 2000.01.01
초록
A fluorescent material was accumulated in inoculated leaves showing necrotic local lesions of tobacco plants with N gene, Nicotiana tabacum cvs. Xanthi-nc NN, Samsun NN, Burley 21 and KF 114, and N. glutinosa, and Datura stramonium at the early growth stages by the inoculation of Tobacco mosaic virus (TMV). It was identified as a coumarin phytoalexin, scopoletin. Although the material was most prominently produced in TMV-inoculated tobacco leaves with local necrotic lesions, its accumulation was also noted in uninoculated leaves of TMV-inoculated plants. Its accumulation was somewhat greater in high resistance-induced leaves than low resistance-induced and intact leaves. Scopoletin treatment induced the expression of a pathogenesis-related protein, PR-1, prominently at the concentration of 500 or 1000
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