Jasmonate-induced Changes in Flavonoid Metabolism in Barley (Hordeum vulgare) Leaves(Organic Chemistry)
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概要
- 論文の詳細を見る
The effects of jasmonic acid (JA) on secondary metabolism in barley (Hordeum vulgare L.) were investigated. A reversed-phase HPLC analysis revealed that the amount of a particular compound increased in excised barley leaf segments that had been treated with JA. This compound was purified and identified as 6'''-feruloylsaponarin (1) by spectroscopic analyses and alkaline hydrolysis. A related compound, 6'''-sinapoylsaponarin (2), was also found to accumulate in excised leaves independently of the JA treatment. The accumulation of these compounds was accompanied by a decrease in the saponarin (3) content. [8, 9-^<13>C] p-Coumaric acid and [2, 3, 4, 5, 6-^2H] L-phenylalanine were effectively incorporated into the hydroxycinnamoyl moieties in 1 and 2, while the degree of incorporation of the labeled precursors into the saponarin part was small. These findings indicate that the hydroxycinnamoyl moieties of 1 and 2 are synthesized de novo from phenylalanine via the phenylpropanoid pathway, and that the saponarin part is mainly provided by the constitutive pool of 3.
- 社団法人日本農芸化学会の論文
- 2002-10-23
著者
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Iwamura Hajime
Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University
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Ishihara A
Kyoto Univ. Kyoto Jpn
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Ishihara Atsushi
Div. Of Applied Life Sciences Graduate School Of Agriculture Kyoto Univ.
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Ishihara A
Department Of Toxicology Faculty Of Pharmaceutical Sciences Higashi-nippon-gakuen University
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Ishihara Atsushi
Division Of Applied Life Sciences Graduate School Of Agriculture Kyoto University
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OGURA Yuki
Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
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TEBAYASHI Shin-ichi
CREST, Japan Science and Technology Corporation (JST)
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Ogura Yuki
Division Of Applied Life Sciences Graduate School Of Agriculture Kyoto University:crest Japan Scienc
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Iwamura H
Department Of Bio-technology School Of Biology-oriented Science And Technology Kinki University
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Iwamura Hajime
Department Of Agricultural Chemistry Faculty Of Agriculture Kyoto University
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Ina H
Tokyo College Of Pharmacy
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Ishihara A
Division Of Applied Life Sciences Graduate School Of Agriculture Kyoto University
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Tebayashi Shin-ichi
Laboratory Of Bioactive Substance Chemistry Faculty Of Agriculture Kochi University
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Tebayashi Shin-ich
Department Of Bioresources Science Faculty Of Agriculture Kochi University
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