| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
(1) (3R)- and (3S)-β-tyrosine showed inhibitory activity on Arabidopsis root elongation, whereas neither m-(3R)-β-tyrosine nor o-(3R)-β-tyrosine showed any inhibitory activity. The coexistence of an amino group at the β-position and a hydroxy group at the p-position in the benzene ring was required for the activity. (2) The accumulation of (R)-β-tyrosine in rice plants at different growth stages (3rd, 5th and 7th leaf stage) showed that (3R)-β-tyrosine accumulated after the 5th leaf stage. The highest accumulation of (3R)-β-tyrosine was observed in the fifth leaf of the fully expanded rice plants. The diurnal variation of (3R)-β-tyrosine accumulation in the fully expanded fifth leaf of rice was constant, unlike that of other amino acids. This result indicates that the dynamics of (3R)-β-tyrosine accumulation is different from those of other amino acids.
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