| Project/Area Number |
21780060
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Plant nutrition/Soil science
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
UMEHARA Mikihisa The Institute of Physical and Chemical Research, 促進制御研究チーム, 研究員 (30469895)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Keywords | ストリゴラクトン / イネ / LC / MS-MS / 腋芽の生長 / リン酸欠乏 / カロテノイド酸化開裂酵素 / 分げつ / LC/MS-MS |
|---|
| Research Abstract |
Strigolactones (SLs) function as a plant hormone that inhibits shoot branching as well as communication signals for symbiosis and parasitism in the rhizosphere. However, why SL contributes to both the communication signal and phytohormone action has been unknown. In this study, tiller bud outgrowth in wild-type rice seedlings is inhibited, while root 2'-epi-5-deoxystrigol (epi-5DS) levels are elevated, in response to decreasing Pi concentrations in the media, but not in the SL-deficient and -insensitive mutants. These results suggest that SL plays an important role in the adaptation to Pi deficiency
|
