| Project/Area Number |
26660098
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Bioorganic chemistry
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
AKIYAMA Kohki 大阪府立大学, 生命環境科学研究科, 教授 (20285307)
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| Co-Investigator(Kenkyū-buntansha) |
甲斐 建次 大阪府立大学, 生命環境科学研究科, 講師 (40508404)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | アーバスキュラー菌根菌 / 菌根ヘルパーバクテリア / N-アシルホモセリンラクトン / シデロフォア / ヘルパーバクテリア / アシルホモセリンラクトン / 共生 |
|---|
| Outline of Final Research Achievements |
Arbuscular mycorrhizas are formed between more than 80% of land plants and arbuscular mycorrhizal (AM) fungi. Certain bacteria living on spores and hyphae of AM fungi promote mycorrhizal development and functioning and are therefore called mycorrhiza helper bacteria (MHB). The underlying mechanisms involve the production of growth factors that might stimulate spore germination, hyphal growth, and root receptiveness to the fungus. However, little is known about active principles responsible for the helper effects exerted by MHB. In this study, we found that bacterial siderophores stimulated AM fungal growth and induced a putative siderophore-iron transporter gene, SIT2, in an AM fungus Rhizophagus irregularis.
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