2016 Fiscal Year Final Research Report
Verification of the necessity of graviresponse for circumnutation by mathematical analyses.
| Project/Area Number |
26506002
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
宇宙生命学
|
|---|
| Research Institution | Yamagata University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | 回旋転頭運動 / 重力応答 / 突然変異体 / 宇宙実験 |
|---|
| Outline of Final Research Achievements |
Plant organs display helical growth movements known as circumnutation. Several lines of evidence indicated the necessity of graviresponse for circumnutation, however some contradictory results have been obtained from space-grown plants. In this study, we intended to distinguish circumnutation from other plants movements by mathematical analyses, and verify whether graviresponse is required for circumnutation or not. Mathematical analyses showed that the movement of shoot apex of wild type plants was truly periodic. On the other hand, the movement of shoot apex of agravitropic mutants was not. From these results, we confirmed that circumnutation requires graviresponse. In addition, this newly developed method can distinguish circumnutation from other nastic plant movement, which might be useful for analyzing the results obtained from our space experiment, “Plant Rotation”.
|
| Free Research Field |
植物生理学
|
