Impact evaluation of UV-B radiation toward plants based on the nondestructive epidermal optical transmittance measurement of leaves.
| Project/Area Number |
26340054
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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 |
Environmental impact assessment
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| Research Institution | Kisarazu National College of Technology |
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Principal Investigator |
FUKUCHI Ken'ichi 木更津工業高等専門学校, 基礎学系, 教授 (00218942)
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| Co-Investigator(Kenkyū-buntansha) |
嘉数 祐子 (大野祐子 / 嘉数 祐子(大野祐子)) 木更津工業高等専門学校, 基礎学系, 准教授 (30455117)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | ラッカセイ葉 / 樹木葉 / 表皮の分光透過率 / UV-Bストレス / 蛍光スペクトル / 蛍光画像 / クロロフィル蛍光 / 葉内色素変化 / 表皮の分光透過特性 / クロロフィル濃度 / アントシアニン濃度 / Fv/Fm / 植物葉 |
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| Outline of Final Research Achievements |
We developed a device to measure fluorescence spectra and images simultaneously excited by multiple wavelength (300 - 400 nm), and were successful in analyzing epidermal optical transmittance and fluorescence distribution in leaves nondestructively.
Ultraviolet-B irradiation to a peanut leaf caused optical holes on the leaf surface so that the transmittance in ultraviolet region increased exponentially. It’s shown that the monitor of the transmittance is extremely effective for the early detection and the quantitative evaluation of the UV-B impact to the plant leaves. Besides, seasonal variation of chlorophyll contents, anthocyanin contents and the epidermal transmittance were investigated in 30 kinds of trees. The results are that the epidermal transmittance characteristics of tree leaves differ according to both the species and the season, and are closely related to the photosynthesis activity and the pigments of leaves.
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Report
(4 results)
Research Products
(3 results)
