| Project/Area Number |
22380042
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
|
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| Research Institution | Hokkaido University |
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Principal Investigator |
EZAWA Tatsuhiro 北海道大学, (連合)農学研究科(研究院), 准教授 (40273213)
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| Co-Investigator(Kenkyū-buntansha) |
AONO Toshihiro 東京大学, 生物生産工学研究センター, 助教 (10372418)
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| Co-Investigator(Renkei-kenkyūsha) |
MASTA Chikara 北海道大学, 大学院農学研究院, 教授 (60281854)
KAWAHARA Ai 北海道大学, 大学院農学院, 博士課程
KIKUCHI Yusuke 北海道大学, 大学院農学院, 博士課程
YOKOYAMA Kaede 北海道大学, 大学院農学院, 博士課程
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|---|
| Project Period (FY) |
2010-04-01 – 2013-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2012: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Keywords | アーバスキュラー菌根菌 / 共生 / 菌類ウィルス / 植物耐酸性 / リン酸 / dsRNA / 植物 / 耐酸性 |
|---|
| Research Abstract |
Soil acidity inhibits plant root growth and thus constrains plant productivity. Acid-tolerant arbuscular mycorrhizal (AM) fungi allow plant survival in acidic soil. The present study investigated the mechanisms underlying the enhancement of plant acid-tolerance by AM fungi. Acid-tolerant AM fungi provide an alternative pathway of phosphate uptake for the damaged roots. Genes involved in phosphate uptake and their expression in response to increased phosphate availability were demonstrated in an acid-tolerant fungus by transcriptome analysis. Four double-stranded RNA viruses were identified in an acid-tolerant fungus, of which a role in acid-tolerance of the host fungus will be investigated in the future.
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