2013 Fiscal Year Final Research Report
Regulation of meristem function through signaling molecules
| Project Area | Plant regulatory systems that control developmental interactions between meristems and lateral organs |
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| Project/Area Number |
19060005
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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 | Osaka University |
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Principal Investigator |
KAKIMOTO Tatsuo 大阪大学, 大学院・理学研究科, 教授 (70214260)
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| Project Period (FY) |
2007 – 2013
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| Keywords | メリステム / サイトカイニン / 分泌ペプチド / 情報伝達 |
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| Research Abstract |
We found that cytokinins are the main regulators for the activity of cambium, and that cytokinin responses are regulated by chromatin remodeling factors and TAFs. We also worked on the regulation of meristematic cells in the leaf epidermis. We identified a secretory peptide EPF2, which functions as a negative feedback regulator for stemness of the meristemoid mother cells. EPF1 and EPF2 information was transmitted through a MAP kinase cascade. We also found that this MAP kinase cascade integrate developmental program and stress signaling.
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[Journal Article] Differential Effects of Peptides Stomagen, EPF1, and EPF2 on Activation of the MAP Kinase MPK6 and the SPCH Protein Level2013
Author(s)
Jewaria PK, Hara T, Tanaka H, Kondo T, Betsuyaku S, Sawa S, Sakagami Y, Aimoto S, Kakimoto T
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Journal Title
Plant Cell Physiol
Volume: 54
Pages: 1253-1262
Peer Reviewed
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[Journal Article] Analysis of cytokinin mutants and regulation of cytokinin metabolic genes reveals important regulatory roles of cytokinins in drought, salt and abscisic acid responses, and abscisic acid biosynthesis2011
Author(s)
Nishiyama R, Watanabe Y, Fujita Y, Le DT, Kojima M, Werner T, Vankova R, Yamaguchi-Shinozaki K, Shinozaki K, Kakimoto T, Sakakibara H, Schmulling T, Tran LS
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Journal Title
Plant Cell
Volume: 23
Pages: 2169-2183
Peer Reviewed
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[Journal Article] Stomatal density is controlled by a mesophyll-derived signalling molecule2010
Author(s)
Kondo T, Kajita R, Miyazaki A, Hokoyama M, Nakamura-Miura T, Mizuno S,Masuda Y, Irie K, Tanaka Y, Takada S, Kakimoto T, Sakagami Y
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Journal Title
Plant Cell Physiol
Volume: 51
Pages: 1-8
Peer Reviewed
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[Journal Article] Identification of Rhodococcus fascians cytokinins and their modus operandi to reshape the plant2009
Author(s)
Pertry I, Vaclavikova K, Depuydt S, Galuszka P, Splchal L, Temmerman W, Stes E, SchmUlling T, Kakimoto T, Van Montagu MC, Strnad M, Holsters M, Tarkowski P, Vereecke D
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Journal Title
Proc Natl Acad Sci U S A
Volume: 106
Pages: 929-34
Peer Reviewed
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