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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15658
|2 doi
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|a pubmed24n0973.xml
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|a (DE-627)NLM292119933
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|a (NLM)30582614
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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 Xu, Changzheng
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Auxin-mediated Aux/IAA-ARF-HB signaling cascade regulates secondary xylem development in Populus
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|c 2019
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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 27.02.2020
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|a Date Revised 09.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.
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|a Wood development is strictly regulated by various phytohormones and auxin plays a central regulatory role in this process. However, how the auxin signaling is transducted in developing secondary xylem during wood formation in tree species remains unclear. Here, we identified an Aux/INDOLE-3-ACETIC ACID 9 (IAA9)-AUXIN RESPONSE FACTOR 5 (ARF5) module in Populus tomentosa as a key mediator of auxin signaling to control early developing xylem development. PtoIAA9, a canonical Aux/IAA gene, is predominantly expressed in vascular cambium and developing secondary xylem and induced by exogenous auxin. Overexpression of PtoIAA9m encoding a stabilized IAA9 protein significantly represses secondary xylem development in transgenic poplar. We further showed that PtoIAA9 interacts with PtoARF5 homologs via the C-terminal III/IV domains. The truncated PtoARF5.1 protein without the III/IV domains rescued defective phenotypes caused by PtoIAA9m. Expression analysis showed that the PtoIAA9-PtoARF5 module regulated the expression of genes associated with secondary vascular development in PtoIAA9m- and PtoARF5.1-overexpressing plants. Furthermore, PtoARF5.1 could bind to the promoters of two Class III homeodomain-leucine zipper (HD-ZIP III) genes, PtoHB7 and PtoHB8, to modulate secondary xylem formation. Taken together, our results suggest that the Aux/IAA9-ARF5 module is required for auxin signaling to regulate wood formation via orchestrating the expression of HD-ZIP III transcription factors in poplar
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4 |
|a Journal Article
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4 |
|a Research Support, Non-U.S. Gov't
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| 650 |
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4 |
|a Populus
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| 650 |
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4 |
|a ARF5
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| 650 |
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4 |
|a Aux/IAA9
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| 650 |
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4 |
|a HD-ZIP III transcription factors
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| 650 |
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4 |
|a auxin
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| 650 |
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4 |
|a xylem development
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| 650 |
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7 |
|a Indoleacetic Acids
|2 NLM
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| 650 |
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7 |
|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Shen, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Fu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fu, Xiaokang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Hong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Wanxiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yongli
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Chaofeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Di
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Hua Cassan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Keming
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 222(2019), 2 vom: 24. Apr., Seite 752-767
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
8 |
|g volume:222
|g year:2019
|g number:2
|g day:24
|g month:04
|g pages:752-767
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/nph.15658
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 222
|j 2019
|e 2
|b 24
|c 04
|h 752-767
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