Implications for leaf internal diffusion conductance to photosynthetic adaptation for temperature.
| Project/Area Number |
19570025
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Kitasato University |
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Principal Investigator |
SAKATA Tsuyoshi Kitasato University, 一般教育部, 助教 (60205747)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | ルビスコ / 高標高 / 低大気圧 / 光合成 / 葉内拡散コンダクタンス / 個葉光合成の最適温度調節 / イタドリ |
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| Research Abstract |
1: We showed that the low atmospheric pressure, low internal condunctance for CO_2, and large amount of activated Rubisco cause drop in an optimum temperature for leaf photosynthesis using the simulation analysis. 2: We didn't detect any difference of CO_2/O_2 specificity of Rubisco between a low temperature population grwoing at a high altitude and a high temperature population growing at a low altitude. 3: The low temperature poulation showed the optimum temperature for leaf photosynthesis as low as 5℃ than the high temperature population. We showed this adaptation was mainly caused by the differences in the amount of activated Rubisco at high temperature. 4: There was not significant diffference in the internal conductance, which increased at high temperature, beteen the populations.
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Report
(4 results)
Research Products
(8 results)
