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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.05.015
|2 doi
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|a pubmed24n0991.xml
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|a (DE-627)NLM297466690
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|a (NLM)31128564
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|a (PII)S0981-9428(19)30203-7
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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 Shan, Xiaotong
|e verfasserin
|4 aut
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| 245 |
1 |
2 |
|a A functional homologue of Arabidopsis TTG1 from Freesia interacts with bHLH proteins to regulate anthocyanin and proanthocyanidin biosynthesis in both Freesia hybrida and Arabidopsis thaliana
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| 264 |
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|c 2019
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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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| 500 |
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|a Date Completed 06.09.2019
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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 © 2019 Elsevier Masson SAS. All rights reserved.
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|a The MBW complex, consisting of MYB, basic helix-loop-helix (bHLH) and WD40 proteins, regulates multiple traits in plants, such as anthocyanin and proanthocyanidin biosynthesis and cell fate determination. The complex has been widely identified in dicot plants, whereas few studies are concentrated on monocot plants which are of crucial importance to decipher its functional diversities among angiosperms during evolution. In present study, a WD40 gene from Freesia hybrida, designated as FhTTG1, was cloned and functionally characterized. Real-time PCR analysis indicated that it was expressed synchronously with the accumulation of both proanthocyanidins and anthocyanins in Freesia flowers. Transient protoplast transfection and biomolecular fluorescence complementation (BiFC) assays demonstrated that FhTTG1 could interact with FhbHLH proteins (FhTT8L and FhGL3L) to constitute the MBW complex. Moreover, the transportation of FhTTG1 to nucleus was found to rely on FhbHLH factors. Outstandingly, FhTTG1 could highly activate the anthocyanin or proanthocyanidin biosynthesis related gene promoters when co-transfected with MYB and bHLH partners, implying that FhTTG1 functioned as a member of MBW complex to control the anthocyanin or proanthocyanidin biosynthesis in Freesia hybrida. Further ectopic expression assays in Arabidopsis ttg1-1 showed the defective phenotypes of ttg1-1 were partially restored. Molecular biological assays validated FhTTG1 might interact with the endogenous bHLH factors to up-regulate genes responsible for anthocyanin and proanthocyanidin biosynthesis and trichome formation, indicating that FhTTG1 might perform exchangeable roles with AtTTG1. These results will not only contribute to the characterization of FhTTG1 in Freesia but also shed light on the establishment of flavonoid regulatory system in monocot plants, especially in Freesia hybrida
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|a Journal Article
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| 650 |
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4 |
|a Anthocyanin biosynthesis
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| 650 |
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4 |
|a MBW complex
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| 650 |
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|a Proanthocyanidin biosynthesis
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| 650 |
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4 |
|a Trichome formation
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| 650 |
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4 |
|a WD40 protein
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| 650 |
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|a Anthocyanins
|2 NLM
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| 650 |
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7 |
|a Arabidopsis Proteins
|2 NLM
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| 650 |
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7 |
|a Basic Helix-Loop-Helix Transcription Factors
|2 NLM
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| 650 |
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7 |
|a Proanthocyanidins
|2 NLM
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| 650 |
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7 |
|a TTG1 protein, Arabidopsis
|2 NLM
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| 700 |
1 |
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|a Li, Yueqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Song
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Ruifang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Liudi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bao, Tingting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Taotao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Shucai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Xiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Li
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 141(2019) vom: 30. Aug., Seite 60-72
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:141
|g year:2019
|g day:30
|g month:08
|g pages:60-72
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2019.05.015
|3 Volltext
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|a AR
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|d 141
|j 2019
|b 30
|c 08
|h 60-72
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