The role and regulation of photosynthesis in specific responses acquired by trees adapted to various environment conditions
| Project/Area Number |
15K07482
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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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| Research Field |
Forest science
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| Research Institution | Yamaguchi University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
野口 航 東京薬科大学, 生命科学部, 教授 (80304004)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 光合成 / 樹木特異的 / 光応答 / 色素 / カロテン / キサントフィル / スダジイ / クロロフィル蛍光 / DPS / NPQ / クエンチング / 樹木 / カロチノド |
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| Outline of Final Research Achievements |
To clarify multi-tolerance mechanisms to environment changes in only tree species, we focused on tree specific photoresponses. NPQ and DPS are the parameters of non-photosynthesis reactions such as the heat by the fluorescence and pigment composition, respectively. In all higher plants, it has been thought that a plot of NPQ vs DPS shows a linear relationship. But a normal linear relation was not obtained in tree leaves with light treatments. Photoresponses of herbaceous plants and trees belonging were compared in the same family to investigate whether NPQ/DPS gap is tree specific photoresponse. The obtained results showed that NPQ/DPS gap was a tree specific response with seasonal variation. the corroborated alternation of normal and tree specific pigments affected quantum yield in photosystems. Furthermore, it was found that light utilization efficiency is controlled by multiple tree specific responses.
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Report
(4 results)
Research Products
(5 results)
