2012 Fiscal Year Final Research Report
Regulation mechanisms of shoot apical meristem
| Project Area | Plant regulatory systems that control developmental interactions between meristems and lateral organs |
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| Project/Area Number |
19060007
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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 | Nara Institute of Science and Technology |
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Principal Investigator |
TASAKA Masao 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 (90179680)
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| Co-Investigator(Kenkyū-buntansha) |
AIDA Mituhiro 奈良先端科学技術大学院大学, バイオサイエンス研究科, 特任准教授 (90311787)
FURUTANI Masahiko 奈良先端科学技術大学院大学, バイオサイエンス研究科, 助教 (10432593)
UCHIDA Naoyuki 奈良先端科学技術大学院大学, バイオサイエンス研究科, 助教 (40467692)
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| Project Period (FY) |
2007 – 2012
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| Keywords | シロイヌナズナ / CC-NB-LRR / 茎頂メリステム / UNI 遺伝子 / オーキシン / MAB4 |
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| Research Abstract |
We have isolated the pid enhancer mutants, macchi-bou 2 an4. MAB4 is a member of NPH3 and function to control the endocytosis of PIN proteins, which is an Auxin efflux carrier. MAB 2 is a member of CDK8 sub-complex to function a transcription repressor worked with Mediator complex. This protein suppressed the ARF transcription factor activity by making big protein complex with AUN/IAA and TOPLESS. We also isolated the enhancer of uni-1D, and isolated the enhancer genes by a map base cloning and by using next generation sequencer. One of the enhancers is erecta (er), which expressed without a shoot apical meristem but affected the maintenance of stem cells in it with the two other family members to affect the cytokinin-signaling pathway. ER, which expressed in the phloem, is important for the inflorescence stem elongation and the small peptides EPFL4 and 6 expressed in endoderm cells function as a ligand in this process.
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[Journal Article] Dynamic aspects of ion accumulation by vesicle traffic under salt stress in Arabidopsis2009
Author(s)
Hamaji K., NagiraM., Yoshida K., Ohnishi M., Oda Y., Uemura T., Goh T., Sato M.H., Morita M.T., Tasaka M., Hasezawa S., Nakano A., Nishimura I.H., Maeshima M., Fukaki H., Mimura T
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Journal Title
Plant Cell Physiol
Volume: 50
Pages: 2023-2033
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