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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2011.03910.x
|2 doi
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|a pubmed25n0706.xml
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|e rakwb
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|a eng
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|a Qi, YanHua
|e verfasserin
|4 aut
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|a OsARF12, a transcription activator on auxin response gene, regulates root elongation and affects iron accumulation in rice (Oryza sativa)
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|c 2012
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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 02.04.2012
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2011 The Authors. New Phytologist © 2011 New Phytologist Trust.
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|a • Auxin has an important role in maintaining optimal root system architecture (RSA) that can cope with growth reductions of crops caused by water or nutrient shortages. However, the mechanism of controlling RSA remains largely unclear. Here, we found a limiting factor of RSA--OsARF12--an auxin response factor whose knockout led to decreased primary root length in rice (Oryza sativa). • OsARF12 as a transcription activator can facilitate the expression of the auxin response element DR5::GFP, and OsARF12 was inhibited by osa-miRNA167d by transient expression in tobacco and rice callus. • The root elongation zones of osarf12 and osarf12/25, which had lower auxin concentrations, were distinctly shorter than for the wild-type, possibly as a result of decreased expression of auxin synthesis genes OsYUCCAs and auxin efflux carriers OsPINs and OsPGPs. The knockout of OsARF12 also altered the abundance of mitochondrial iron-regulated (OsMIR), iron (Fe)-regulated transporter1 (OsIRT1) and short postembryonic root1 (OsSPR1) in roots of rice, and resulted in lower Fe content. • The data provide evidence for the biological function of OsARF12, which is implicated in regulating root elongation. Our investigation contributes a novel insight for uncovering regulation of RSA and the relationship between auxin response and Fe acquisition
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Indoleacetic Acids
|2 NLM
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|a MicroRNAs
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|a Plant Proteins
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|a Trans-Activators
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|a Iron
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|a E1UOL152H7
|2 NLM
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| 700 |
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|a Wang, SuiKang
|e verfasserin
|4 aut
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|a Shen, ChenJia
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, SaiNa
|e verfasserin
|4 aut
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|a Chen, Yue
|e verfasserin
|4 aut
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|a Xu, YanXia
|e verfasserin
|4 aut
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|a Liu, Yu
|e verfasserin
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|a Wu, YunRong
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|a Jiang, DeAn
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1990
|g 193(2012), 1 vom: 13. Jan., Seite 109-120
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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|g volume:193
|g year:2012
|g number:1
|g day:13
|g month:01
|g pages:109-120
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|u http://dx.doi.org/10.1111/j.1469-8137.2011.03910.x
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