2013 Fiscal Year Final Research Report
Malate dynamics in symbiosis between Lotus japonicus and Mesorhizobium loti
| Project/Area Number |
24880020
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2012-08-31 – 2014-03-31
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| Keywords | ミヤコグサ / リンゴ酸 / ALMT / SWEET / 共生窒素固定 |
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| Research Abstract |
Symbiotic nitrogen fixation by intracellular rhizobia within legume root nodules requires the exchange of nutrients between host plant cells and their resident bacteria. While exchanged molecules imply nitrogen compounds, carbohydrate, and also various minerals, the knowledge on molecular basis of plant transporters that mediate those metabolite exchanges are still limited. In this study, I characterized two transporter families, ALMT and SWEET. One of LjALMT gene and LjSWEET gene express in nodule vascule bundles, and their transport activities for malate and sucrose were confirmed with Xenopus oocyte and FLET, respectively. The direct involvement of these transporters in nutrient transport into bacteroids was not observed, however, their functions in carbon dynamics in nodules were suggested.
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[Journal Article] Arabidopsis ABCB21 is a facultative auxin importer/exporter regulated by cytoplasmic auxin concentration2012
Author(s)
Kamimoto, Y., Terasaka, K., Hamamoto, M., Takanashi, K., Fukuda, S., Shitan, N., Sugiyama, A., Suzuki, H., Shibata, D., Wang, B., Pollmann, S., Geisler, M., Yazaki, K
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Journal Title
Plant and Cell Physiology
Volume: 53
Pages: 2090-2100
DOI
Peer Reviewed
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