| Budget Amount *help |
¥75,140,000 (Direct Cost: ¥57,800,000、Indirect Cost: ¥17,340,000)
Fiscal Year 2023: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2022: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2021: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2020: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2019: ¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
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| Outline of Final Research Achievements |
We investigated the role of the circadian clock in plant development and cell elongation control, and revealed a novel phenomenon in which root hair length is periodically regulated by the circadian clock. This rhythmic regulation was completely abolished in the circadian clock mutant toc1. Furthermore, the same loss of rhythmicity was observed when the aerial part of the plant was replaced with a toc1 mutant through grafting, suggesting that a TOC1-dependent signal originating from the shoot is transmitted to the root. While several reports have documented long-distance signaling of circadian rhythms, these have all been limited to regulation at the gene expression level. This study provides the first evidence of long-distance circadian signaling observed at the phenotypic level, demonstrating the transmission of temporal information across plant organs. These findings were published in the journal Plant and Cell Physiology
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