The physiological significance of lipid metabolic fluxes in guard cells
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- Negi Juntaro
- Principal Investigator
- 九州大学
About this project
- Japan Grant Number
- JP18K06293
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding organization
- Japan Society for the Promotion of Science
- Project/Area Number
- 18K06293
- Research Category
- Grant-in-Aid for Scientific Research (C)
- Allocation Type
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- Multi-year Fund
- Review Section / Research Field
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- Basic Section 44030:Plant molecular biology and physiology-related
- Research Institution
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- Kyushu University
- Project Period (FY)
- 2018-04-01 〜 2023-03-31
- Project Status
- Completed
- Budget Amount*help
- 4,550,000 Yen (Direct Cost: 3,500,000 Yen Indirect Cost: 1,050,000 Yen)
Research Abstract
In plants, plastidial glycolipids are synthesized via two distinct pathways: the plastidic pathway and the endoplasmic reticulum (ER) pathway. The relative contributions of the plastidic and the ER pathways to the plastidial glycolipid synthesis differ among various plant tissues, and our previous studies have shown that the ER pathway is more extensively utilized in guard cells than in mesophyll cells for the synthesis of chloroplast glycolipids. On the other hand, the physiological significance of why the ER pathway develops in guard cells is unclear. In this study, we found that galactosyldiacylglycerol (DGDG), one of the chloroplast lipids mainly synthesized by the ER pathway, is essential for stomatal chloroplast formation. We also found that similar to guard cells, root cells exhibit a higher proportion of glycolipid from the ER pathway and that the ER pathway has a significant contribution toward chloroplast development in the root cells.
Details 詳細情報について
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- CRID
- 1040282256976277760
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- Text Lang
- ja
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- Data Source
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- KAKEN