Metabolism and Biosynthesis of Cytokinins in Tobacco Crown Gall Cells
スポンサーリンク
概要
- 論文の詳細を見る
The metabolism of ribosylzeatin (RZ) was studied using tobacco crown gall cells which produce RZ as one of the major endogenous cytokinins. When [8-^<14>C]RZ was fed to the cells, it was converted into its phosphate (which was rigorously determined to be the 5'-monophosphate), RZ-O-glucoside, inosine (or its phosphate), adenosine and adenosine-O-glucoside. When [8-^<14>C]N^6-(Δ^2-isopentenyl)adenosine (i^6Ado), a probable precursor of RZ, was fed to the cells, it was converted into i^6Ado-O-glucoside, inosine (or its phosphate), adenosine, adenosine-O-glucoside and adenosine phosphate, but no incorporation of radioactivity into RZ was observed. The present study led to the following conclusions: i) i^6Ado is not a precursor of RZ in the cells, ii) both deaminase and cytokinin oxidase are involved in the catabolism of cytokinin, and iii) the metabolism of RZ is quite different from that of i^6Ado.
- 日本植物生理学会の論文
著者
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TAKAHASHI Nobutaka
Department of Biochemistry University of Shizuoka School of Pharmaceutical Science
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高橋 直樹
Univ. Tokyo Tokyo Jpn
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YOKOTA TAKAO
Department of Pediatrics, The Second Tokyo National Hospital
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Takahashi Nobutaka
Department Of Agricultural Chemistry The University Of Takyo
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Nakajima Hiromitsu
Department of Bioresource Science, Faculty of Agriculture, Tottori University
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Yokota Takao
Department Of Agricultural Chemistry The University Of Takyo
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Yokota T
Teikyo Univ. Tochigi Jpn
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Nakajima Hiromitsu
Department Of Agricultural Chemistry The University Of Takyo:(present)department Of Agricultural Che
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Nakajima Hiromitsu
Department Of Agricultural Chemistry Faculty Of Agriculture Tottori University
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Takahashi Nobutaka
Department Of Agricultural Chemistry Faculty Of Agricultural Science University Of Tokyo
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