| Project/Area Number |
23780025
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | Okayama University |
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Principal Investigator |
NAKANO Ryohei 岡山大学, その他の研究科, 准教授 (70294444)
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| Co-Investigator(Renkei-kenkyūsha) |
KUBO Yasutaka 岡山大学, 環境生命科学研究科, 教授 (80167387)
USHIJIMA Koichiro 岡山大学, 環境生命科学研究科, 助教 (20379720)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | サイトカイニン / 老化特異的プロモーター / ITP / 花持ち / IPT / 花き類 |
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| Research Abstract |
Chimeric gene that induced cytokinin biosynthesis regulating gene IPT under the control of senescence activated promoter PSARK (PSARK-IPT) was introduced into floricultural plants such as petunia and chrysanthemum and their shelf-life were observed. As results, in 'Seikonomakoto' chrysanthemum which has a problem of leaf-yellowing during storage and transportation, cut flowers harvested from PSARK-IPT introduced trangenic plants showed markedly delayed leaf-yellowing. They also showed delayed leaf-senescence even under dark condition and ethylene exposure. These results provide valuable information for breeding floricultural plants with stress-tolerance and long-self life that would lead to low cost, energy saving and economical transportation.
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