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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz430
|2 doi
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|a pubmed25n1005.xml
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|a (DE-627)NLM301671311
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|a (NLM)31559426
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Wei, Xiaopeng
|e verfasserin
|4 aut
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|a ABF2 and MYB transcription factors regulate feruloyl transferase FHT involved in ABA-mediated wound suberization of kiwifruit
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 05.03.2021
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|a Date Revised 05.03.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Suberin is a cell-wall biopolymer with aliphatic and aromatic domains that is synthesized in the wound tissues of plants in order to restrict water loss and pathogen infection. ω-hydroxyacid/fatty alcohol hydroxycinnamoyl transferase (FHT) is required for cross-linking of the aliphatic and aromatic domains. ABA is known to play a positive role in suberin biosynthesis but it is not known how it interacts with FHT. In this study, the kiwifruit (Actinidia chinensis) AchnFHT gene was isolated and was found to be localized in the cytosol. Transient overexpression of AchnFHT in leaves of Nicotiana benthamiana induced massive production of ferulate, ω-hydroxyacids, and primary alcohols, consistent with the in vitro ability of AchnFHT to catalyse acyl-transfer from feruloyl-CoA to ω-hydroxypalmitic acid and 1-tetradecanol. A regulatory function of four TFs (AchnABF2, AchnMYB4, AchnMYB41, and AchnMYB107) on AchnFHT was identified. These TFs localized in the nucleus and directly interacted with the AchnFHT promoter in yeast one-hybrid assays. Dual-luciferase analysis indicated that AchnABF2, AchnMYB41, and AchnMYB107 activated the AchnFHT promoter while AchnMYB4 repressed it. These findings were supported by the results of transient overexpression in N. benthamiana, in which AchnABF2, AchnMYB41, and AchnMYB107 induced expression of suberin biosynthesis genes (including FHT) and accumulation of suberin monomers, whilst AchnMYB4 had the opposite effect. Exogenous ABA induced the expression of AchnABF2, AchnMYB41, AchnMYB107, and AchnFHT and induced suberin monomer formation, but it inhibited AchnMYB4 expression. In addition, fluridone (an inhibitor of ABA biosynthesis) was found to counter the inductive effects of ABA. Activation of suberin monomer biosynthesis by AchnFHT was therefore controlled in a coordinated way by both repression of AchnMYB4 and promotion of AchnABF2, AchnMYB41, and AchnMYB107
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Actinidia chinensis
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|a Nicotiana benthamiana
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|a Abscisic acid
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|a kiwifruit
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|a suberization
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|a transcription factor
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|a transcriptional regulation
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|a wound healing
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|a Lipids
|2 NLM
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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|a Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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| 650 |
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|a suberin
|2 NLM
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| 650 |
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|a 8072-95-5
|2 NLM
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| 700 |
1 |
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|a Lu, Wenjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mao, Linchun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Xueyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wei, Xiaobo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Xiaoxiao
|e verfasserin
|4 aut
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| 700 |
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|a Xia, Ming
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Changjie
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 1 vom: 01. Jan., Seite 305-317
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:71
|g year:2020
|g number:1
|g day:01
|g month:01
|g pages:305-317
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|u http://dx.doi.org/10.1093/jxb/erz430
|3 Volltext
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|d 71
|j 2020
|e 1
|b 01
|c 01
|h 305-317
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