2014 Fiscal Year Final Research Report
Functional analysis of rhizobial cells responsible for symbiotic nitrogen fixation with leguminous plants
| Project/Area Number |
22380048
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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 |
Applied microbiology
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2010-04-01 – 2015-03-31
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| Keywords | 共生窒素固定 |
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| Outline of Final Research Achievements |
Sinorhizobium meliloti is a root-nodule bacterium that establishes symbiosis with leguminous plants and performs nitrogen fixation. In this study, we analyzed the regulon of its sigma factor RpoH1, which is essential for heat shock response and effective symtiosis, and identified a member of the regulon, SMc00302 (designated later as sufT) to have an essential role in symbiosis. Functional analysis of this gene showed that SufT homologs are distributed widely over prokaryotes and eukaryotes and the rhizobial SufT operates to enhance the iron-sulfur cluster biogenesis in the cell under iron-limiting conditions.
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| Free Research Field |
微生物学
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