Molecular interactions at plant-insect interface
| Project/Area Number |
24570026
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Ecology/Environment
|
|---|
| Research Institution | Okayama University |
|---|
Principal Investigator |
GALIS Ivan 岡山大学, 資源植物科学研究所, 教授 (90360502)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHINYA Tomonori 岡山大学, 資源植物科学研究所, 助教 (80514207)
TANI Akio 岡山大学, 資源植物科学研究所, 准教授 (00335621)
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
|---|
| Keywords | 防御応答 / 昆虫エリシター / 植食生昆虫 / ジャスモン酸 / Oryza sativa / ファイトアレキシン / イネ / 傷害 / rice / phenolamide / phytoalexin / jasmonic acid / defense / elicitor / ホルモン / 昆虫 / 代謝物 / エリシター / 植食性昆虫 |
|---|
| Outline of Final Research Achievements |
We established a novel system to study rice-insect interactions. We showed that the accumulation of active defense hormone jasmonoyl-L-isoleucine (JA-Ile) in rice depends on the function of OsJAR1 enzyme. JA and JA-Ile accumulations in rice were controlled by the availability of the main pathway substrate, α-linolenic acid. In comparison to wounding, rice plants specifically responded to elicitors present in chewing herbivore oral secretions. We identified two novel herbivory-related phenolamide phytoalexins. Using ROS and rice phenolamides as molecular markers, we identified and partially purified a new putative insect elicitor from Mythimna loreyi oral secretions.
|
Report
(4 results)
Research Products
(16 results)
