| Budget Amount *help |
¥63,180,000 (Direct Cost: ¥48,600,000、Indirect Cost: ¥14,580,000)
Fiscal Year 2022: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2021: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2020: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2019: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2018: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
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| Outline of Final Research Achievements |
In general, the primary roots of plants grow in the direction of gravity, while the main stem grows in the opposite direction of gravity. Both growth directions are along the vertical line. On the other hand, lateral roots and lateral branches often grow at a certain angle relative to the direction of gravity. This gravity-guided growth direction control exhibited by plant organs significantly influences the overall structure (plant architecture), such as root spreading and branch spreading. This may contribute to a mechanically stable optimized structure and is also considered one of the mechanisms that optimize resource acquisition both above and below ground. In this study, we provided a novel model for the gravity sensing and signaling mechanism in gravitropism. Additionally, we conducted a functional analysis of genes involved in controlling lateral branch angles, obtaining fundamental information related to the mechanisms that optimize plant architecture.
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