88.C6揮発性成分によって誘導されるArabidopside関連化合物の構造と機能(口頭発表)

概要

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In recent research for bioactive substances of Arabidopsis thaliana, seven new oxylipins named arabidopsides A〜G were isolated from the aerial parts of this plant. Arabidopsides A〜G are monogalactosyl diacylglycerides or digalactosyl diacylglycerides containing 12-oxophytodienoic acid and/or dinor-oxophytodienoic acid which were known as precursors of jasmonic acid (JA) and have received much attention because they play important roles in regulation of developmental and defense gene expression of plants as JA and methyl jasmonate. On the other hand, it is known that plant volatile compounds like C6 aldehydes, alcohols, and acetates are released from plants in response to mechanical wounding and herbivore attack. In this research, we investigated the effect of volatile compounds as potent inducers for triggering accumulations of arabidopsides A, B, E, and G in mature leaves of A. thaliana. In addition, volatiles-induced arabidopsides were not detected in the coi 1-1 mutant. These results indicate that volatiles-induced arabidopsides are concerned in the mechanism of stress response through COI 1 signaling in A. thaliana.
植物化学調節学会の論文
2009-10-06