Detection, identification and mechanism of defense-related molecule for plant parasitic nematodes.
| Project/Area Number |
23380029
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Plant pathology
|
|---|
| Research Institution | National Agriculture and Food Research Organization |
|---|
Principal Investigator |
MIZUKUBO Takayuki 独立行政法人農業・食品産業技術総合研究機構, 中央農業総合研究センター病害虫研究領域, 上席研究員 (30370513)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SEO Shigemi 独立行政法人農業生物資源研究所, 植物・微生物間相互作用研究ユニット, 主任研究員 (80414910)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2011: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
|
|---|
| Keywords | ジャスモン酸 / 線虫侵入抑制節物質 / ネコブセンチュウ / トマト / スクラレオール / シロイヌナズナ / ニグリン / エチレン / 線虫侵入抑制物質 / リグニン / 植物病理学 / 線虫学 / 誘導抵抗性 / エチレンシグナル伝達系 |
|---|
| Research Abstract |
We focused on sclareol, a natural labdane-type diterpene known as the antimicrobial and defense-related molecule, and investigated whether and how sclareol application on plant body inhibits RKN infection to tomato and Arabidopsis roots. Plants that received sclareol application suppressed RKN infection, except for the ethylene (ET) insensitive mutant ein2-1.
Exogenously applied sclareol enhanced EIN2-dependent pathway and induced expression of lignin biosynthetic genes in roots of the plant. Accumulation of lignin in the roots which was caused by the activation of phenylpropanoid pathway resulted in suppression of invasion of RKN. Sclareol-induced RKN resistance was compromised in the Arabidopsis mutant deficient in a lignin biosynthetic gene, suggesting that lignin is involved in the sclareol-induced resistance against RKN.
|
Report
(4 results)
Research Products
(26 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Remarks] 瀬尾茂美, 五味剣二, 加来久敏, 安部洋, 瀬戸秀春, 中津信吾, 閨正博, 小林光智衣, 中保一浩, 一瀬勇規, 光原一朗, 大橋祐子, 水久保隆之, 藤本岳人, 森脇明弘, 高垣真喜一, 作物の重要病害である青枯病を抑える天然物質の同定, 2013 研究成果情報
-
