Enzymatic synthesis of isopentenyl pyrophosphate in sweet potato root tissue in response to infection by black rot fungus
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概要
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Cell-free systems were prepared from fresh, cut and black rot-diseased tissues of sweet potato roots. When incubated in the presence of mevalonate, all these systems were capable of synthesizing 5-phosphomevalonate, mevalonate-5-pyrophosphate and isopentenyl pyrophosphate. The time courses for the appearance of the ^<14>C-labeled metabolites suggested the following order of synthesis: mevalonate → 5-phosphomevalonate → mevalonate-5-pyrophosphate → isopentenyl pyrophosphate. It was also shown, on prolonged incubation, that isopentenyl pyrophosphate was converted slowly to isopentenyl monophosphate. The activity for synthesis of isopentenyl pyrophosphate from mevalonate was higher in diseased tissue than in cut and healthy tissues.
- 日本植物生理学会の論文
著者
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Oshima-oba Kazuko
Laboratory Of Biochemistry Faculty Of Agriculture Nagoya University
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URITANI IKUZO
Laboratory of Biochemistry, Faculty of Agriculture,Nagoya University
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Uritani Ikuzo
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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