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          Institute: MPI für Entwicklungsbiologie     Collection: Abteilung 5 - Cell Biology (G. Jürgens)     Display Documents



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ID: 561562.0, MPI für Entwicklungsbiologie / Abteilung 5 - Cell Biology (G. Jürgens)
Bimodular auxin response controls organogenesis in Arabidopsis
Authors:De Smet, I.; Lau, S.; Voss, U.; Vanneste, S.; Benjamins, R.; Rademacher, E. H.; Schlereth, A.; De Rybel, B.; Vassileva, V.; Grunewald, W.; Naudts, M.; Levesque, M. P.; Ehrismann, J. S.; Inze, D.; Luschnig, C.; Benfey, P. N.; Weijers, D.; Van Montagu, M. C. E.; Bennett, M. J.; Jurgens, G.; Beeckman, T.
Date of Publication (YYYY-MM-DD):2010-02-09
Title of Journal:Proceedings of the National Academy of Sciences of the United States of America
Volume:107
Issue / Number:6
Start Page:2705
End Page:2710
Review Status:not specified
Audience:Not Specified
Abstract / Description:Like animals, the mature plant body develops via successive sets of instructions that determine cell fate, patterning, and organogenesis. In the coordination of various developmental programs, several plant hormones play decisive roles, among which auxin is the best-documented hormonal signal. Despite the broad range of processes influenced by auxin, how such a single signaling molecule can be translated into a multitude of distinct responses remains unclear. In Arabidopsis thaliana, lateral root development is a classic example of a developmental process that is controlled by auxin at multiple stages. Therefore, we used lateral root formation as a model system to gain insight into the multifunctionality of auxin. We were able to demonstrate the complementary and sequential action of two discrete auxin response modules, the previously described SOLITARY ROOT/INDOLE-3-ACETIC ACID (IAA) 14-AUXIN REPONSE FACTOR (ARF)7-ARF19-dependent lateral root initiation module and the successive BODENLOS/IAA12-MONOPTEROS/ARF5-dependent module, both of which are required for proper organogenesis. The genetic framework in which two successive auxin response modules control early steps of a developmental process adds an extra dimension to the complexity of auxin's action.
Free Keywords:auxin/indole-3-acetic acid; auxin response factor; cell cycle; lateral root; lateral root initiation; mediated transformation; transcription factor; gene; embryo; monopteros; thaliana; expression; arf19; differentiation
External Publication Status:published
Document Type:Article
Communicated by:edocabt5
Affiliations:MPI für Entwicklungsbiologie/Abteilung 5 - Zellbiologie (Peter Hausen)
External Affiliations:Flanders Inst Biotechnol, Dept Plant Syst Biol, B-9052 Ghent, Belgium Flanders Inst Biotechnol, Dept Plant Syst Biol, B-9052 Ghent, Belgium Univ Ghent, Dept Plant Biotechnol & Genet, B-9052 Ghent, Belgium Max Planck Inst Dev Biol, Dept Cell Biol, D-72076 Tubingen, Germany Univ Tubingen, Ctr Plant Mol Biol, D-72076 Tubingen, Germany Univ Nottingham, Sch Biosci, Plant Sci Div, Loughborough LE12 5RD, Leics, England Univ Nottingham, Sch Biosci, Ctr Plant Integrat Biol, Loughborough LE12 5RD, Leics, England Univ Nat Resources & Appl Life Sci, Dept Appl Genet & Cell Biol, A-1190 Vienna, Austria Univ Wageningen & Res Ctr, Biochem Lab, NL-6703 HA Wageningen, Netherlands Duke Univ, Dept Biol, Durham, NC 27708 USA Duke Univ, IGSP Ctr Syst Biol, Durham, NC 27708 USA %G English
Identifiers:ISSN:0027-8424 [ID No:1]
ISI:000274408100062 [ID No:2]
ISI:000274408100062 [ID No:3]
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