10. 新奇トリアゾール系発根促進剤の探索(口頭発表,植物化学調節学会第46回大会)

概要

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Eucalyptus globulus is one of the major afforestation species, but is known to be difficult for vegetative-prapagation because of its difficulty in root formation. According to the previous research, the endogenous level of indole-3-acetic acid (IAA) in poor-rooting line is three times lower than that of easy-rooting line, which suggests that endogenous IAA level may affect the ability of root formation. Therefore, we screened chemical library of triazole derivatives to find chemicals that is effective in promoting root formation. Consequently, several chemicals were selected as promoters of root formation in E. globulus. One of these chemicals, named MA65, has the ability to increase the number of root and the amount of endogenous level of IAA in Arabidopsis thaliana. On the basis of the chemical structure of MA65 as a lead compound, we started the lead optimization and synthesized 15 triazole derivatives and evaluated their ability to promote root formation and to increase the level of endogenous IAA using A. thaliana. As a result, one of the chemicals synthesized in this study was selected and found to be more effective in promoting root formation in E. globulus than MA65.
2011-10-03