Xylem embolism development under drought and its repair after drought release by stem cutting on woody species
Project/Area Number |
25850102
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Forest science
|
Research Institution | The University of Tokyo |
Principal Investigator |
OGASA Mayumi 東京大学, 新領域創成科学研究科, 日本学術振興会特別研究員PD (10646160)
|
Project Period (FY) |
2013-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 通水阻害 / 木部水分通導 / 道管 / MRI / アーティファクト / 木部内水分布 / 低温走査電子顕微鏡(cryo-SEM) |
Outline of Final Research Achievements |
Spatial pattern of xylem embolism development under drought stress and xylem water distribution after stem cutting under water were investigated non-destructively using magnetic resonance imaging system for three deciduous woody species. Xylem embolism was found at first around the pith in all species but its developing pattern was different among species. Xylem water distribution did not change after the release of drought stress by stem cutting, suggesting no short-term embolism repair on excised shoot.
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Report
(3 results)
Research Products
(5 results)