Intracellular Distributions of Enzymes and Intermediates Involved in Biosynthesis of Capsaicin and Its Analogues in Capsicum Fruits
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概要
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Phenylalanine ammonia-lyase, trans-cinaamate 4-monooxygenase, and capsaicinoid synthetase [Agric. Biol. Chem., 44, 2907 (1980)] activities were investigated in the subcellular fractions from protoplasts of placenta of Capsicum fruits. The subcellular distribution of intermediates of the capsaicinoid biosynthesis, trans-cinnamic acid and trans-p-coumaric acid, and capsaicinoid were also investigated. The activity of trans-cinnamate 4-monooxygenase and capsaicinoid synthetase was in the vacuole fraction. While the activity of phenylalanine ammonia-lyase was in the cytosol fraction. After feeding L-[U-14C]phenylalanine to the protoplast, the newly synthesized trans-p-coumaric acid and capsaicinoid were found in the vacuole fraction, while trans-cinnamic acid was not in the vacuole fraction. The possible role of the vacuole on the biosynthesis of capsaicinoid is also discussed.
- 社団法人 日本農芸化学会の論文
著者
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Iwai Kazuo
Department Of Food Science And Technology Faculty Of Agriculture Kyoto University
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Fujiwake Hideshi
Research Institute for Food Science, Kyoto University
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Fujiwake Hideshi
Research Institute For Food Science Kyoto University
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Suzuki Tetsuya
Research Institute For Food Science Kyoto University
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