| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
To elucidate the mechanisms of environmental regulation of the secondary metabolism in grape berries, first, we set up the analytical method to analyze comprehensively the phenolics and the volatile compounds, both free and bound forms. By the method, we could detect the significant modulation of the composition of the secondary metabolites among the varieties as well as under different environmental conditions, such as light environment around the bunches. Genechip analysis screened a candidate bZIP transcription factor whose gene expression profile was coordinate to those of the phenolics and terpenoids ubder different environment and developmental stages. The functional analysis of this bZIP transcription factor revealed the regulation of the phenolic metabolism. For the regulation of the secondary metabolism by this factor, co-factor was considered to be necessary.
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