| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Research Abstract |
To elucidate coordination mechanisms of chloroplast differentiation with organ development in plants, greening mechanisms of Arabidopsis roots after shoot removal were examined. The results revealed that cytokinin signaling upregulates photosynthesis-associated genes and improves photosynthetic electron transport efficiency in roots after shoot removal. The cytokinin signaling involves a wounding-responsive factor in upstream and chloroplast-related transcription factors in downstream. Not only Arabidopsis thaliana, other angiosperms such as Dandelion (Traxacum officinale) also improved photosynthetic efficiency in the root after shoot removal. Further analyses showed that photosynthesis in the root is crucial for regeneration of the shoot in Dandelion.
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