2022 Fiscal Year Final Research Report
Functional analyses on WOX trancription factors and peptide hormones in tissue wound repair
| Project/Area Number |
20K06712
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 44030:Plant molecular biology and physiology-related
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| Research Institution | Nara Institute of Science and Technology (2022)
Niigata University (2020-2021) |
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Principal Investigator |
Ikeuchi Momoko 奈良先端科学技術大学院大学, 先端科学技術研究科, 特任准教授 (00633570)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 組織修復 / カルス / ホメオボックス |
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| Outline of Final Research Achievements |
Plants can repair damaged tissues via callus formation. We recently identified WOX13 as a key regulator of tissue repair processes. We found that the expression of WOX13 is induced by damage signal. WOX13 in turn induces genes involved in cell wall modification. We also uncovered that auxin-induced expression of WOX13 is responsible for the differential callus formation activity between two opposing ends of the cut organs. Taken together, our studies revealed that organ cutting provokes both local damage signal and the mislocalization of long distance signal, together strongly activate WOX13 to enable efficient tissue repair.
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| Free Research Field |
植物発生学
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| Academic Significance and Societal Importance of the Research Achievements |
植物の組織修復能力を利用して、苗の接ぎ木が農業や園芸分野で幅広く用いられている。本研究によって組織修復および切断された機関の再接着において重要な制御因子を同定しその機能解析を進められたことにより、接ぎ木メカニズムの一端を明らかすることができた。将来的には、モデル植物を用いた本研究成果を農作物へ応用することによって、接ぎ木技術の開発につなげられることが期待できる。
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