Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:2.1.1.69 (BMT)
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Characteristic enzymes of general phenylpropanoid metabolism (phenylalanine ammonialyase) and of the flavonoid-glycoside and furanocoumarin branch pathways (chalcone synthase and S-adenosyl-L-methionine: bergaptol O-methyltransferase, respectively) were localized immuno-histochemically in cross-sections of various aerial parts of parsley (Petroselinum crispum) at different stages of seedling development. Phenylalanine ammonia-lyase occurred predominantly in epidermal and oil-duct epithelial cells, but was also detectable in other tissue parts. The two pathway-specific enzymes were localized in the epidermis (chalcone synthase) and in oil ducts (bergaptol O-methyl-transferase). High chalcone-synthase concentrations occurred very early in leaf development and then declined. High levels of the methyltransferase were present at all times investigated. The temporal and spatial at all times investigated. The temporal and spatial distribution of all three enzymes is in agreement with the time courses and sites of accumulation of the biosynthetic end products.
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PMID:Differential regulation and tissue-specific distribution of enzymes of phenylpropanoid pathways in developing parsley seedlings. 2422 81