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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw286
|2 doi
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|a pubmed24n1346.xml
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|a (DE-627)NLM262600455
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|a (NLM)27436280
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Christiansen, Michael W
|e verfasserin
|4 aut
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| 245 |
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|a Barley plants over-expressing the NAC transcription factor gene HvNAC005 show stunting and delay in development combined with early senescence
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|c 2016
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.11.2017
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|a Date Revised 25.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The plant-specific NAC transcription factors have attracted particular attention because of their involvement in stress responses, senescence, and nutrient remobilization. The HvNAC005 gene of barley encodes a protein belonging to subgroup NAC-a6 of the NAC family. This study shows that HvNAC005 is associated with developmental senescence. It was significantly up-regulated following ABA treatment, supported by ABA-responsive elements in its promoter, but it was not up-regulated during dark-induced senescence. The C-termini of proteins closely related to HvNAC005 showed overall high divergence but also contained conserved short motifs. A serine- and leucine-containing central motif was essential for transcriptional activity of the HvNAC005 C-terminus in yeast. Over-expression of HvNAC005 in barley resulted in a strong phenotype with delayed development combined with precocious senescence. The over-expressing plants showed up-regulation of genes involved with secondary metabolism, hormone metabolism, stress, signalling, development, and transport. Up-regulation of senescence markers and hormone metabolism and signalling genes supports a role of HvNAC005 in the cross field of different hormone and signalling pathways. Binding of HvNAC005 to promoter sequences of putative target genes containing the T[G/A]CGT core motif was shown by direct protein-DNA interactions of HvNAC005 with promoters for two of the up-regulated genes. In conclusion, HvNAC005 was shown to be a strong positive regulator of senescence and so is an obvious target for the fine-tuning of gene expression in future attempts to improve nutrient remobilization related to the senescence process in barley
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|a Journal Article
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|a Barley
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| 650 |
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4 |
|a Hordeum vulgare L.
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| 650 |
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|a NAC transcription factors
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| 650 |
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4 |
|a gene regulation
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| 650 |
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4 |
|a senescence
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| 650 |
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4 |
|a senescence-associated genes
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| 650 |
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|a transgenic plants.
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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7 |
|a Transcription Factors
|2 NLM
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| 700 |
1 |
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|a Matthewman, Colette
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Podzimska-Sroka, Dagmara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a O'Shea, Charlotte
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lindemose, Søren
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Møllegaard, Niels Erik
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Holme, Inger B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hebelstrup, Kim
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Skriver, Karen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gregersen, Per L
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 17 vom: 19. Sept., Seite 5259-73
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:67
|g year:2016
|g number:17
|g day:19
|g month:09
|g pages:5259-73
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erw286
|3 Volltext
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|h 5259-73
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