2012 Fiscal Year Final Research Report
Analysis of molecular basis for enhanced symbiotic nitrogen fixation and its application for leguminous crops production.
| Project/Area Number |
21380016
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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 |
Crop science/Weed science
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| Research Institution | Saga University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ARIMA Susumu 佐賀大学, 農学部, 教授 (90140954)
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| Project Period (FY) |
2009 – 2012
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| Keywords | ミヤコグサ / ダイズ / 窒素固定 / 共生 / 根粒菌 / 遺伝子 / 根粒 |
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| Research Abstract |
Root nodule formation and nitrogen fixation activity was enhanced in enf1 mutant of model leguminous plant Lotus japonicus. In this project, we showed that the number of root nodules was increased by the down-regulation of TRX gene expression. This result indicates that TRX gene is one of a gene that function as an enhancer of symbiotic nitrogen fixation. Soybean mutant line NO. 57 that were isolated by the ABA screening showed enhanced nitrogen fixation activity and also showed higher seed yields.
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[Journal Article] Enhanced nodulation and nitrogen fixation in the ABA low-sensitive mutant enf1 (enhanced nitrogen fixation 1) of Lotus japonicus2009
Author(s)
A. Tominaga, M. Nagata, K. Futsuki, H. Abe, T. Uchiumi, M. Abe, K. Kucho, M. Hashiguchi, R. Akashi, A. Hirsch, S. Arima and A. Suzuki
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Journal Title
Plant Physiology
Volume: 151
Pages: 1965-1976
URL
Peer Reviewed
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