| Project/Area Number |
20580060
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
OTSUKA Shigeto The University of Tokyo, 大学院・農学生命科学研究科, 准教授 (10313074)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
SENOO Keishi 東京大学, 大学院・農学生命科学研究科, 教授 (40206652)
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|---|
| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | 土壌生物 / 土壌微生物 / 共存系 / 藻類 / 細菌 / ビタミンB12 / 相互作用 / 培養 / 生育 |
|---|
| Research Abstract |
Ten species of bacteria were isolated from mixed cultures of Chlorella (green algae) and soil bacteria. A Brevundimonas isolate significantly elongated the culture lifetime of Chlorella. Bacteria that supply vitamin B_<12> to a vitamin B_<12> auxotrophic green alga, Monomastix, were isolated, one of which, Ensifer sp., was subjected to a molecular genetic analysis. The presense of 22 genes involved in vitamin B_<12> synthesis in this bacterium was revealed, and the full sequences of the genes were determined.
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