Regulation of nodulation by phytosterols
| Project/Area Number |
18K06305
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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 | Institute of Physical and Chemical Research |
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Principal Investigator |
Yamazaki Akihiro 国立研究開発法人理化学研究所, 環境資源科学研究センター, 研究員 (50752953)
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| Co-Investigator(Kenkyū-buntansha) |
下田 宜司 国立研究開発法人農業・食品産業技術総合研究機構, 生物機能利用研究部門, 上級研究員 (80415455)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 植物生理 / 共生 / 分子生物学 / 植物微生物相互作用 / 植物―微生物相互作用 / 根粒菌 / ステロール / 根粒 |
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| Outline of Final Research Achievements |
In this study, we identified PSAT as a novel regulatory factor in root nodule symbiosis (RNS), in which legume plants and symbiotic microorganisms fix atmospheric nitrogen. PSAT functions in the sterol homeostasis in Arabidopsis. We found that the function of PSAT in RNS can be uncoupled from that in the sterol homeostasis. PSAT represented a strong genetical correlation with a small subset of symbiotic genes. Together with its mysterious subcellular localization, oud data imply the existence of novel signaling cascades in RNS. The results we obtained through this study add novel information to the field of plant-microbe symbiosis to help deeper understanding of RNS in the views of genetics and molecular biology.
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| Academic Significance and Societal Importance of the Research Achievements |
これまで報告の少ない「植物ー微生物共生における負の制御機構」について、本研究で新たな因子PSATを同定した。PSATの遺伝学的上位性や細胞内局在等の結果は未知の共生シグナル経路の存在を示唆しており、当該分野に新たな知見を加えることができた。根粒共生の分子生物学的な理解をより深めることで、根粒共生能のマメ科以外の植物への賦与といった、SDGsに直結する課題解決への礎として、今後の研究への応用、発展が期待される。
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Report
(5 results)
Research Products
(9 results)
