CHANGES IN ACTIVITIES OF 5-DEHYDROQUINATE HYDRO-LYASE AND SHIKIMATE-NADP OXIDOREDUCTASE IN SLICED SWEET POTATO ROOTS
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概要
- 論文の詳細を見る
Sweet potato roots of variety Norin No. 1 were cut into discs (3×19 mm), which were incubated at 28-29°for 4 days. At 24-hour intervals, activities of 5-dehydroquinate hydro-lyase and shikimate-NADP oxidoreductase in the buffer extracts of discs were estimated. The activities of both enzymes were significantly detected in the fresh root tissues. 5-Dehydroquinate hydro-lyase activity per fresh weight increased by three to four times within 2 days after slicing, and decreased gradually. Shikimate-NADP oxidoreductase activity at the 1st-day incubation period was found to be about three times as much as the activity found in the fresh roots, and it remained for 4 days after slicing. The role of these enzymes in polyphenol biosynthesis in the sliced root tissues is discussed. An attempt to detect the enzymic conversion of dehydroquinic acid to quinic acid is also described.
- 日本植物生理学会の論文
著者
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Kojima Mineo
Laboratory Of Biochemistry And Institute For Biochemical Regulation Faculty Of Agriculture Nagoya Un
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URITANI IKUZO
Laboratory of Biochemistry, Faculty of Agriculture,Nagoya University
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Minamikawa Takao
Laboratory Of Biochemistry And Institute For Biochemical Regulation Faculty Of Agriculture Nagoya Un
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Uritani Ikuzo
Laboratory Of Biochemistry And Institute For Biochemical Regulation Faculty Of Agriculture Nagoya Un
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