| Project/Area Number |
23658020
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Crop science/Weed science
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
KOIKE Setsuo 独立行政法人農業・食品産業技術総合研究機構, 東北農業研究センター生産基盤研 究領域, 専門員 (60355279)
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| Co-Investigator(Kenkyū-buntansha) |
HAYASHI Takami 独立行政法人 農業・食品産業技術総合研 究機構, 東北農業研究センター生産基盤研 究領域, 主任研究員 (00355281)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | イネ / 開穎 / 鱗被 / 肥大 / 溶質 / 糖 / 無機塩 |
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| Research Abstract |
Fructose and glucose as sugars and potassium and chloride as major inorganic ions were revealed as major solute components and osmotic substances related to the hypertrophy of lodicules. Fructose and glucose were increased their contents four to five times higher compared with one hour before flowering. Soluble invertase activities measured at pH5.0 were ten times higher than those at pH7.0. Consequently, accumulations of fructose and glucose in the lodicules at flowering mightbe resulted from acidic invertase activities in the vacuoles of lodicules.
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