<Original>O-Methyltransferase as a Tool to Evaluate the Lignin Evolution
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概要
- 論文の詳細を見る
この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。The ratios of sinapate (SA)- to ferulate (FA)- formation (SA/FA ratio) by O-methyltransferases (OMTs) were surveyed over fifty plant species of 43 families. The OMTs are roughly classified into three groups by using the SA/FA ratio, i.e. gymnosperm-, angiosperm- and grass-types. OMTs in gymnosperm only catalyze FA-formation whereas angiosperm ones catalyze both FA- and SA-formation. Monocotyledons and herbaceous plants showed the apparent ratios which lay between typical gymnosperm- and angiosperm-ones. These substrate specificities well explain why gymnosperm lignin contains almost entirely guaiacyl lignin whereas angiosperm one contains both guaiacyl and syringyl lignins. A few exceptional cases were found in Cupressaceae-, Trochodendron-, and grass-OMTs, which were discussed in relation to lignin biosynthesis. The ratios of the OMT activities are discussed with respect to the usefulness as an evolutional marker for analyzing lignin evolution.
- 京都大学の論文
- 1982-03-15
著者
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Kuroda Hiroyuki
Research Section Of Wood Biology Wood Research Institute Kyoto University
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Higuchi Takayoshi
Research Section Of Lignin Chemistry Wood Research Institute Kyoto University
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Kuroda Hiroyuki
Research Institute For Sustainable Humanosphere (rish) Kyoto University:wood Research Institute Kyot
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