2006 Fiscal Year Final Research Report Summary
The analysis of ERECTA gene, which is responsible for the elongation of the stem, in Arabidopsis.
| Project/Area Number |
15207001
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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 |
Genetics/Genome dynamics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KOMEDA Yoshibumi The University of Tokyo, Graduate School of Science, Professor, 大学院理学系研究科, 教授 (10124215)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Mitsuhiro The University of Tokyo, Graduate School of Science, Research Fellow, 大学院理学系研究科, 助手 (40361563)
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| Project Period (FY) |
2003 – 2006
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| Keywords | Arabidopsis / stem / elongation / erecta mutants / floral stem |
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| Research Abstract |
The aim of this study is: to understand the processes during the development of higher plants especially for the elongation of the floral stems in Arabidopsis. For that, our tools are to isolate mutants and to analyze the responsible genes.
1.The study of two genes for erecta-binding proteins.
The erbpl and 2 double mutants expressed seedling-lethality. The ontogenic defective point was searched by observation of the embryos from globular stage to maturity. The defect revealed after the onset of the heart-stage-embryo. The relation to auxin was determined by using auxin-reporter DR5-uidA.
2.To search new factors for the regulation of ERECTA gene.
We collected many mutants which have reduced expression of ER gene by using ER-uidA(from E. coli) reporter. We isolated mutants carrying reduced expression of erecta (as rex) 1 and 2 genes. Their responsible genes encode for pectin-synthesis and for factors for cellar organella, respectively. The regulation of related genes were determined under the rexl and 2 background to know the regulation.
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Author(s)
Imai, A., Hanzawa, Y., Komura, M., Yamamoto, KT., Komeda, Y., Takahashi, T.
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Journal Title
Development 133
Pages: 3575-3585
Description
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[Journal Article] Characterization of the class IV homeodomain-leucine zipper gene family in Arabidopsis.2006
Author(s)
Nakamura, M., Katsumata, M., Abe, M., Yabe, N., Komeda, Y., Yamamoto, KT., Takahashi, T.
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Journal Title
Plant Physiology 141
Pages: 1363-1375
Description
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[Journal Article] Metabolic changes in Arabidopsis thaliana expressing the feedback-resistant anthranilate synthase beta subunit gene OSASA1D.2006
Author(s)
Ishihara, A., Asada, Y., Takahashi, Y., Yabe, N., Komeda, Y., Nishioka, T., Miyagawa, H., Wakasa, K.
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Journal Title
Phytochemistry 67
Pages: 2349-2362
Description
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[Journal Article] Arabidopsis mutants by activation tagging in which photosynthesis genes are expressed in dedifferentiated calli.2006
Author(s)
Niwa, Y., Goto, S., Nakano, T., Sakaiya, M., Hirano, T., Tsukaya, H., Komeda, Y., Kobayashi, H.
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Journal Title
Plant and Cell Physiology 47
Pages: 319-331
Description
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[Journal Article] AtXTH27 plays an essential role in cell wall modification during the development of tracheary elements.2005
Author(s)
Matsui, A., Yokoyama, R., Seki, M., Ito, T., Shinozaki, K., Takahashi, T., Komeda, y., Nishitani, K.
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Journal Title
Plant Journal 42
Pages: 525-534
Description
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[Journal Article] Spermidine synthase genes are essential for survival of Arabidopsis.2004
Author(s)
Imai, A., Matsuyama, T., Hanzawa, Y., Akiyama, T., Tamaoki, M., Saji, H., Shirano, Y., Kato, T., Hayashi, H., Shibata, D., Tabata, S., Komeda, Y., Takahashi, T.
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Journal Title
Plant Physiology 135
Pages: 1565-1573
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Spermidine synthase genes are essential for survival of Arabidopsis.2004
Author(s)
Imai A, Matsuyama T, Hanzawa Y, Akiyama T, Tamaoki M, Saji H, Shirano Y, Kato T, Hayashi H, Shibata D, Tabata S, Komeda Y, Takahashi T
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Journal Title
Plant Physiol. 135
Pages: 1565-1573
Description
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