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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2014.09.003
|2 doi
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|a pubmed25n0813.xml
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|a (NLM)25443839
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a DePaoli, Henrique Cestari
|e verfasserin
|4 aut
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|a SCI1 is a component of the auxin-dependent control of cell proliferation in Arabidopsis upper pistil
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.07.2015
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.
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|a To characterize the recently described SCI1 (stigma/style cell cycle inhibitor 1) gene relationship with the auxin pathway, we have taken the advantage of the Arabidopsis model system and its available tools. At first, we have analyzed the At1g79200 T-DNA insertion mutants and constructed various transgenic plants. The loss- and gain-of-function plants displayed cell number alterations in upper pistils that were controlled by the amino-terminal domain of the protein. These data also confirmed that this locus holds the functional homolog (AtSCI1) of the Nicotiana tabacum SCI1 gene. Then, we have provided some evidences the auxin synthesis/signaling pathways are required for downstream proper AtSCI1 control of cell number: (a) its expression is downregulated in yuc2yuc6 and npy1 auxin-deficient mutants, (b) triple (yuc2yuc6sci1) and double (npy1sci1) mutants mimicked the auxin-deficient phenotypes, with no synergistic interactions, and (c) the increased upper pistil phenotype in these last mutants, which is a consequence of an increased cell number, was able to be complemented by AtSCI1 overexpression. Taken together, our data strongly suggests SCI1 as a component of the auxin signaling transduction pathway to control cell proliferation/differentiation in stigma/style, representing a molecular effector of this hormone on pistil development
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis thaliana
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|a Auxin signaling
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|a Cell proliferation control
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|a Pistil development
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|a Yucca
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|a Arabidopsis Proteins
|2 NLM
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|a Indoleacetic Acids
|2 NLM
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|a Intracellular Signaling Peptides and Proteins
|2 NLM
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|a SCI1 protein, Arabidopsis
|2 NLM
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|a Dornelas, Marcelo Carnier
|e verfasserin
|4 aut
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|a Goldman, Maria Helena S
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 229(2014) vom: 28. Dez., Seite 122-130
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnas
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|g volume:229
|g year:2014
|g day:28
|g month:12
|g pages:122-130
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|u http://dx.doi.org/10.1016/j.plantsci.2014.09.003
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