A Possible Mechanism for the Oxidation of Sinapyl Alcohol by Peroxidase-Dependent Reactions in the Apoplast: Enhancement of the Oxidation by Hydroxycinnamic Acids and Components of the Apoplast
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概要
- 論文の詳細を見る
Apoplastic peroxidase isoenzymes from stems of Nico-tiana tabacum rapidly oxidized sinapic acid and sinapyl alcohol, in addition to 4-coumaric acid, ferulic acid and coniferyl alcohol. By contrast, the peroxidase isoenzymes from stems of Vigna angularis oxidized sinapic acid and sinapyl alcohol quite slowly but rapidly oxidized compounds with a 4-hydroxyphenyl or a guaiacyl group. However, the oxi-dation of sinapyl alcohol was greatly enhanced by 4-coumaric acid, ferulic acid and an ester of ferulic acid. Intercellular washing fluid of V. angularis, which contained apoplastic components, also enhanced the oxidation of sinapyl alcohol. Based on these results, a possible mechanism for the oxidation of sinapyl alcohol is discussed on the assumption that the biosynthesis of lignin proceeds mainly via peroxidases which cannot oxidize sinapyl alcohol in V. angularis.
- 日本植物生理学会の論文
著者
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ONIKI Takayuki
Kyushu Dental College
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Oniki Takayuki
Kyushu Dentalcollege
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TAKAHAMA Umeo
Kyushu Dental University
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Shimokawa Hidetoshi
Fukuoka Dental College
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Takahama Umeo
Kyushu Dental College
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Takahama Umeo
Kyushu Dentalcollege
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