PROBLEM TO BE SOLVED: To provide an enzyme responsible for the synthesis of a monoterpene glycoside, which is considered to be a common form as a precursor of flavor components in plants, a transformant into which the gene of such an enzyme is introduced, a method for forming such a transformant, and a method for producing a novel terpene glycoside.SOLUTION: According to the present invention, there is provided an enzyme having glycosidation activity against monoterpene found by co-expression analysis of Arabidopsis thaliana, and, in particular, showing a high specific activity against a substrate having a hydroxy group at the 8-position. There are also provided a transformant into which the gene of such an enzyme is introduced, a method for forming such a transformant, and a method for producing a novel terpene-8-glycoside. The monoterpene compound is selected from 8-hydroxy myrcene, 8-hydroxy nerol, 8-hydroxy geraniol, or 8-hydroxy linalool.SELECTED DRAWING: None【課題】植物の香気成分の前駆体として一般的な形と考えられるモノテルペン配糖体の合成にかかわる酵素、該酵素遺伝子を導入した形質転換体、該形質転換体の作製方法、および新規なテルペン配糖体の製造方法の提供。【解決手段】シロイヌナズナの共発現解析により見出したモノテルペンに対して配糖体化活性を有しており、特に8位にヒドロキシ基を有する基質に対して高い比活性を示す酵素、該酵素遺伝子を導入した形質転換体、該形質転換体の作製方法、および該酵素遺伝子を利用した新規なテルペン8位配糖体の製造方法。前記モノテルペン化合物が８－ヒドロキシミルセン、８－ヒドロキシネロール、８－ヒドロキシゲラニオール又は８－ヒドロキシリナロールから選択される化合物。【選択図】なし
