Analysis of regulatory mechanisms and physiological significance of vitamin B2 metabolism in plants

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K05382
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 38030:Applied biochemistry-related
• Research Institution: Shimane University
• Principal Investigator: Ogawa Takahisa 島根大学, 学術研究院農生命科学系, 准教授 (80603802)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: ビタミンB2 / リボフラビン / 輸送体 / 環境ストレス

Outline of Final Research Achievements

We analyzed the regulatory and transport mechanisms of vitamin B2 (riboflavin), a compound essential for all physiological functions of living organisms, in plants. Our findings reveal that the levels of vitamin B2 in plant cells are augmented by various environmental stresses and phytohormones. Furthermore, manipulating intracellular vitamin B2 levels has been demonstrated to influence plant growth and enhance tolerance to environmental stresses. Additionally, we have identified, for the first time, candidate genes for vitamin B2 transporters in plants.

Free Research Field

植物生理学

Academic Significance and Societal Importance of the Research Achievements

我々ヒトはビタミンB2を合成できないため、植物はビタミンB2の重要な供給源の一つです。したがって、本研究によって見出した植物のビタミンB2の調節機構や輸送体の存在は、植物におけるビタミンB2の生理学的重要性を初めて明らかにしただけでなく、さらに詳細に解析を行うことで、将来的にはヒトにとって有用な植物の分子育種などへの応用が期待されます。