69 りんご腐らん病菌の代謝産物の構造及び抗腐らん病活性物質の検索について

概要

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The metabolites of a phytopathogenic fungus, Valsa ceratosperma, which causes Japanese apple canker, have been studied. From the filtrate of an artificial cultivation of the fungus five isocoumarin derivatives (1 5) were isolated. The structure of these compounds was determined by the spectroscopic data and chemical conversion. 2 5 are new compounds. All the compounds may be classified to phytotoxic substance from the result of a bioassay experiment using detached apple shoots and showed the antifungal activity against Valsa ceratosperma. The screening of fungi with the activity was also carried out. The few compounds with potent anti-Valsa ceratosperma activity were isolated from the metabolites of some fungi. These are 6, 7, 8, and 9.
天然有機化合物討論会の論文
1980-09-10