Dihydroconiferyl alcohol as a gibberellin synergist in inducing lettuce hypocotyl elongation. An assessment of structure-activity relationships

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概要

• 論文の詳細を見る

• Structure-activity relationships of the cotyledon factor were examined by testing the effect of various substances structurally related to the cotyledon factor (dihydroconiferyl alcohol) on gibberellin-induced lettuce hypocotyl elongation. The biological activity of the cotyledon factor, 3-(4-hydroxy-3-methoxyphenyl) propan-1-ol, disappeared if the phenolic hydroxy group was masked with a methoxy or glucosyl group. Oxidation of the alcoholic group in the side chain to a carboxylic group decreased the biological activity of the cotyledon factor. As to relationships between the biological activity and length of the alkyl side chain, the propane type was found to be much more active than the methane, ethane or butane type. The presence of a C=C bond in the alkyl side chain made the cotyledon factor biologically inactive. Some antioxidants of indole-3-acetic acid were also assayed for cotyledon factor-like activity, since the cotyledon factor is a polyphenol. However, known antioxidants such as rutin, pyrocatechol, chlorogenic acid, caffeic acid and ferulic acid did not show cotyledon factor-like activity. From these results, structural requirements of the cotyledon factor as a gibberellin synergist were discussed.

• 日本植物生理学会の論文

著者

• Kamisaka Seiichiro

  Department Of Biology Faculty Of Science Osaka City University

• KUBOTA TAKASHI

  Faculty of Science, Osaka City University

• Shibata Kozo

  Department Of Chemistry Faculty Of Science Osaka City University

• Kamisaka Seiichiro

  Department Of Biology And Geosciences Graduate School Of Science Osaka City University

• Kubota Takashi

  Faculty Of Medicine Kinki University

• Kamisaka Seiichiro

  Department Of Biology

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