The mechanism how endodormancy is maintained in Rosaceae fruit trees-possible roles of sorbitol in inhibiting the resumption of bud growth
| Project/Area Number |
21780031
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
ITO Akiko 独立行政法人農業・食品産業技術総合研究機構, 果樹研究所栽培・流通利用研究領域, 主任研究員 (30355383)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 果樹 / 園芸学 |
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| Research Abstract |
In order to elucidate the possible roles of carbohydrate in Japanese pear(Pyrus pyrifolia,'Kosui') during endodormancy, seasonal changes of carbohydrate concentrations and the activities of sorbitol-and sucrose-metabolizing enzymes were investigated in the lateral flower buds and current shoots. We found that sorbitol and sucrose metabolisms in these tissues changed drastically during endodormancy phase, and thus assume that pear flower buds regulate endodormancy by modulating the systems for sorbitol-and sucrose-catabolism depending on the dormancy stage. We also discuss the possible inhibitory effect of sorbitol on flower bud growth during endodormancy.
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Report
(4 results)
Research Products
(4 results)
