| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Quiescent center (QC) resides in the center of a root apical meristem and has a very low mitotic activity. To establish this quiescence, the amount of ribosomes is assumed to be maintained at a low level. In this study, overexpression of ribosomal protein fused with GFP revealed that at least several distinct ribosomal proteins are maintained at a low level in the QC cells. This regulation is counteracted by the exogenous application of brassinosteroids or cytokinins. In addition, such quantitative regulation of ribosomal proteins requires two mechanisms: one of them suppresses ribosome production in the QC cells and the other eliminates ribosomal proteins produced in excess in entire root apical meristem.
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