2012 Fiscal Year Final Research Report
Plant regulatory systems that control developmental interactions between meristems and lateral organs
| Project Area | Plant regulatory systems that control developmental interactions between meristems and lateral organs |
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| Project/Area Number |
19060015
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Biological Sciences
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| Research Institution | Nagoya University |
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Principal Investigator |
MACHIDA Yasunori 名古屋大学, 大学院・理学研究科, 特任教授 (80175596)
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| Co-Investigator(Kenkyū-buntansha) |
FUKAKI Hidehiro 神戸大学, 大学院・理学研究科, 准教授 (80324979)
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| Co-Investigator(Renkei-kenkyūsha) |
ARAKI Takashi 京都大学, 大学院・生命科学研究科, 教授 (00273433)
SHIMAMOTO Koh 奈良先端科学技術大学院大学, バイオサイエンス研究科, 教授 (10263427)
YAMAMOTO Kotaro 北海道大学, 大学院・理学研究院, 教授 (80142008)
FUKUDA Hiroo 東京大学, 大学院・理学系研究科, 教授 (10165293)
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| Project Period (FY) |
2007-07-25 – 2014-03-31
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| Keywords | メリステム / シグナル伝達 / 植物 / 発現制御 / 発生分化 / 細胞内局在 / エピジェネティクス / 低分子 RNA |
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| Research Abstract |
How is a land plant that has leaves, stems and roots generated from the seed? How is flowering controlled during the growth of a plant? The aim of the research project is to answer these questions. Various activities of plants are basically governed by actions of genes and its products, proteins and RNA molecules including small and long non-coding RNAs. In history, flowering is thought to occur by the action of a specific substance, called “florigen”, which might be produced in leaves. A member of the research group discovered a gene for the florigen. Leaves and stems are formed as flat and rod-shaped organs, respectively. Morphogenesis of such plant organs appears to require a number of specific genes and other non-coding RNAs and proteins. However, it remains to be demonstrated how these molecules modulate the formation of specific shapes of plant organs under unidentified molecular networks. Using Arabidopsis and rice, we have planed to identify and characterize novel molecules (e.
… More
g. genes) for morphogenesis of plant organs that must be derived from meristematic tissues and investigate how these molecules participate in signal networks that control such morphogenesis. To achieve further understanding of these molecular networks, we have organized the research groups for a Grant-in-Aid for Scientific Research on Specific Areas “Plant Meristem”. We also have organized the general managing group, which actively advances collaborative investigations in the group. During the progression of the group research, we have organized collaborations more than a hundred, which included distributions of research materials and exchanging unpublished technical advancements and information. The collaborative groups have published 76 original articles as collaborative papers. In addition, during the advancement of the group researches, about 20% of members of the group have participated in establishment of a new research group for a Grant-in-Aid for Scientific Research on Specific Areas, in which they aimed at novel molecular processes underlying organ development of plants. These achievements show that our general managing group in addition to the research group has contributed to further expanding the field of plant developmental biology during the term of the group research. Less
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[Journal Article] Dual regulation of ETTIN (ARF3) gene expression by AS1-AS2, which maintains the DNA methylation level, is involved in stabilization of leaf adaxial-abaxial partitioning in Arabidopsis2013
Author(s)
Iwasaki M., Takahashi, H., Iwakawa, H., Nakagawa, A., Ishikawa, T., Tanaka, H., Matsumura, Y., Pekker, I., Eshed, Y., Vial-Pradel, S., Ito, T., Watanabe, Y., Ueno, Y., Fukazawa, H., Kojima, S., Machida,, Y., and Machida, C
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Journal Title
Development
Volume: 140
Pages: 1958-1969
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[Journal Article] CRYPTIC PRECOCIOUS/MED12 is a novel flowering regulator with multiple target steps in Arabidopsis2012
Author(s)
Imura, Y., Kobayashi, Y., Yamamoto, S., Furutani, M., Tasaka M., Abe, M., and Araki T
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Journal Title
Plant Cell Physiol
Volume: 53
Pages: 287-303
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[Journal Article] 14-3-3 proteins act as intracellular receptors for rice Hd3a florigen2011
Author(s)
Taoka, K.-I., Ohki, I., Tsuji, H., Furuita K., Hayashi, K., Yanase, T., Yamaguchi, M., Nakashima, C., Purwestri, Y. A., Tamaki, S., Ogaki, Y., Shimada, C., Nakagawa, A., Kojima, C., Shimamoto, K
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Journal Title
Nature
Volume: 476
Pages: 332-335
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[Journal Article] Phytochrome-mediated growth inhibition of seminal roots in rice seedlings2009
Author(s)
Shimizu, H., Tanabata, T., Xie, X., Inagaki, N., Takano, M., Shinomura, T., and Yamamoto, K.T
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Journal Title
Physiol. Plant
Volume: 137
Pages: 289-297
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