ELCIDATION OF MECHANISM OF ICE SEGREGATION BY Keisukea japonica Miq., Lamiaceae AIMING FOR BIOMIMETICS
| Project/Area Number |
24658207
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural environmental engineering
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| Research Institution | Obihiro University of Agriculture and Veterinary Medicine |
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Principal Investigator |
TAKEDA Kazuo 帯広畜産大学, 畜産学部, 教授 (80374768)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUSHIMA Uzuki 岩手大学, 農学部, 准教授 (70315464)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | シモバシラ / シソ科植物 / 氷晶析出 / 氷核活性 / 植物外凍結 / ピット(壁孔） / 3次元画像解析 / バイオミメティックス / ピット（壁孔） / バイオミメティクス / 寒さ適応性 / 高尾山 |
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| Research Abstract |
In order to clarify the mechanism of ice segregation phenomenon by Keisukea japonica Miq., Laminaceae, various laboratory experiments were conducted. As a result, it was verified that the nucleation temperature reaches to -2.1 to -2.5 deg C, pits having 1 micrometer in size are on the xylem surface through the electron microscopic analysis, and the water pathway in the xylem exists in the periphery of vessel to the xylem surface through three-dimensional fluorescent image analysis. Based on these findings, it can be explained that small pits play a role as a barrier to interrupt the ice intrusion into the xylem, so that soil water moves to the xylem surface through roots and xylem by the super cooling of growing surface of ice and freezes continuously as ice segregation phenomenon. These phenomena can be applied for a biomimetic micro water pump. The simple pump system driven by thermal condition will be a good tool for a component technology in the micro mechatronics.
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Report
(3 results)
Research Products
(16 results)
