Role of Surface Substances on Germinated Spores of Ceratosystis fimbriata, Black Rot Fungus, in Host-parasite Interaction
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概要
- 論文の詳細を見る
Surface substances were isolated by sonication from the germinated spores of various strains of Ceratocystisfimbriata and characterized in relation to host-parasite specificity. The substances from the sweet potato strain, compatible with sweet potato, potently inhibited the spore agglutination of various strains by spore-agglutinating factor from sweet potato roots, while the substances from incompatible strains, that is, coffee, taro, and almond strains, weakly inhibited this agglutination. The substances from the sweet potato strain increased ethylene production from sweet potato roots infected by all strains tested, sweet potato, coffee, taro, and almond strains, which was possibly an index of pathogenicity. On the other hand, the substances from incompatible strains, coffee, taro, and almond strains, suppressed the ethylene production from the tissue infected by all four strains except the substances from almond strains on almond strain. Heat and trypsin treatments inactivated the spore agglutination inhibitory activity of the surface substances. Coincidently, these treatments extinguished the effect of the surface substances on pathogenicity of C. fimbriata on sweet potato roots.
- 社団法人 日本農芸化学会の論文
著者
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Kojima Mineo
Institute For Biochemical Regulation Faculty Of Agriculture Nagoya University
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Kawakita Kazuhito
Institute For Biochemical Regulation Faculty Of Agriculture Nagoya University
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