2009 Fiscal Year Final Research Report
MAKING OF ACID SOIL-TOLERANT PLNTS BY MOLECULAR MODIFICATIONS OF ALUMINUM TOLERANCE AND PHOSPHORUS RECYCLING CAPABILITY
| Project/Area Number |
18208008
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 | Yamagata University |
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Principal Investigator |
WAGATSUMA Tadao Yamagata University, 農学部, 教授 (70007079)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Youko 岡山大学, 資源植物科学研究所, 教授 (50166831)
KOYAMA Hiroyuki 岐阜大学, 応用生物科学部, 教授 (90234921)
SHINANO Takurou 北農研センター, 根圏チーム, チーム長 (20235542)
WASAKI Jun 広島大学, 生物圏科学研究科, 准教授 (00374728)
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| Project Period (FY) |
2006 – 2009
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| Keywords | アルミニウム耐性 / インベルターゼ / 細胞膜ステロール / 低pH耐性 / ヘキソース輸送体 / マイクロアレイ / リン酸欠乏応答 |
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| Research Abstract |
Aluminum (Al) ion inhibits sugar uptake which leads to the inhibition of water uptake as well as cell elongation. Inhibition of sugar uptake by Al seems to be compensated by the stimulation of translocation of photosynthates. Novel strategy for Al tolerance differing from the known strategy based on the release of organic acid anions was found. Higher sterols in plasma membrane lipid layer of root-tip were demonstrated to be the cause of Al tolerance. Genomic and genetic approaches in Arabidopsis revealed that acid and Al tolerances were co-regulated by the same signal transduction pathway, but with the distinct functional genes for tolerance. Comparative microarray analysis showed that common alterations involved in the metabolisms of sugars and lipids contributed to P recycling. It was suggested that responses in flavonoids synthesis were specific in leguminous plants.
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[Journal Article] STOP1 regulates multiple genes that protect Arabidopsis from proton and aluminum toxicities2009
Author(s)
Sawaki S, Iuchi S, Kobayashi Y, Ikka T, Sakurai, N, Fujita M, Shinozaki K, Shibata D, Kobayashi M, Koyama, H
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Journal Title
Plant Physiology Vol. 148
Pages: 969-980
Peer Reviewed
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[Presentation] Aluminum reduces sugar uptake in tobacco : a potential cause of cell elongation inhibition but not of cell death2009
Author(s)
Yamamoto Y, Abdel-Basset R, Rikiishi S, Ozuka S, Demiral T, Furuichi T, Sawatani I, Baskin TI, Matsumoto H, Sasaki T
Organizer
The 7^<th> International Symposium on Plant-Soil Interactions at Low pH
Place of Presentation
Guangzhou, China
Year and Date
20090517-20090521
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[Presentation] Comparative study of plant response to P starvation2007
Author(s)
Shinano T, Choi SJ, Wasaki J, Osaki M
Organizer
International Symposium on Plant Science for Biomass and Food Production in Acid Soil-Recent advances in physiology, genetics and genomics studies-
Place of Presentation
Creative Research Initiative 'Sousei' (CRIS), Hokkaido University, Sapporo , Japan
Year and Date
2007-09-26
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[Presentation] Overexpression of LASAP2 gene for secretory acid phosphatase of white lupin improves P uptake and growth of tobacco plants2007
Author(s)
Wasaki J, Maruyama H, Tanaka M, Dateki H, Yamamura T, Shinano T, Ito S, Osaki M
Organizer
International Symposium on Plant Science for Biomass and Food Production in Acid Soil-Recent advances in physiology, genetics and genomics studies-
Place of Presentation
Creative Research Initiative 'Sousei' (CRIS), Hokkaido University, Sapporo, Japan
Year and Date
2007-09-26
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[Book] Metabolomics Approach on Soybean. In Bileu K, Ratnaparkhe MB, Kole C (eds.) Genetics, Genomics and Breeding of Soybean
Author(s)
Nakamura T, Okazaki K, Benkeblia N, Wasaki J, Matsuura H, Uchimiya H, Komatsu S, Shinano T
Publisher
Science Publisher Inc.(印刷中)
