| Project/Area Number |
16K14835
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Crop production science
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Research Collaborator |
OI Takao 名古屋大学, 大学院生命農学研究科, 助教 (60752219)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | C4光合成 / 葉緑体 / トランスポーター / アスパラギン酸 / リンゴ酸 / 維管束鞘細胞 / クロストーク / ホスホエノールピルビン酸カルボキシキナーゼ / 輸送体 / トウモロコシ / ヒエ |
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| Outline of Final Research Achievements |
In this research, we aim to clarify details of aspartate-mediated crosstalk between NADP-ME-type and PCK-type C4 cycles. In sorghum and green foxtail, NADP-ME-type C4 plants, there was no facilitative effect of aspartate on malate transport to chloroplasts and the PCK enzyme activity in leaf tissues was low. Therefore, it is inferred that the cooperative mechanism of the C4 cycle involving malate transport has been established in NADP-ME-type C4 plants having PCK-type C4 cycle such as maize. In addition, we found four kinds of Echinochloa C4 plants in Poaceae with markedly high PCK enzyme activity and they were expected to be good materials for clarifying the cooperation between both the C4 cycles.
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