| Project/Area Number |
22780024
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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 | Kagawa University |
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Principal Investigator |
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| Project Period (FY) |
2010-04-01 – 2013-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 花持ち性 / 花弁 / 老化 / エチレン / システインプロテアーゼ / 遺伝子発現 / プロモーター / キキョウ |
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| Research Abstract |
Involvement of four different genes encoding cysteine proteinase in the rapid wilting of balloon flower (Platycodon grandiflorus) petals was investigated. Expression of PgCP1 was up-regulated just after the flower opening stage and the expression remained until the onset of wilting. On the other hand, PgCP3, PgCP4 and PgCP5, which were newly identified from petals at the stage just before wilting, were markedly up-regulated from the stage just before wilting and the wilting stage. The promoter analysis indicated the possibility that the regulation via ethylene-responsive regulatory element (ERE) is involved in the expression of PgCP1, PgCP4 and PgCP5 in the petals whereas other unknown factors might be involved in regulation of PgCP3.
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