2012 Fiscal Year Final Research Report
Molecular mechanisms underlying reacquisition of proliferation competence during dedifferentiation of plant cells
| Project/Area Number |
22370015
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
OHTANI Misato 理化学研究所, バイオマス工学研究プログラム, 研究員 (60435633)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 脱分化 / 細胞増殖能 / プレ mRNA スプライシング / rRNA 生合成 / NAC 転写因子 |
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| Research Abstract |
The molecular genetic analysis of Arabidopsis mutants temperature-sensitive for hypocotyl dedifferentiation has shown that the levels of pre-mRNA splicing and rRNA biosynthesis factors limit the competence of plant cell proliferation, whose reacquisition during dedifferentiation involves increase of these factors, that this control of cell proliferation is meditated by the suppression of proliferation by a specific NAC transcription factor, and that the capacity of pre-mRNA splicing required for cell proliferation varies dependently on cytokinin.
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