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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2021.08.042
|2 doi
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|a pubmed24n1100.xml
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|a (DE-627)NLM330214780
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|a (NLM)34479030
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|a (PII)S0981-9428(21)00460-5
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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 |
1 |
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|a Abbas, Farhat
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Putative regulatory role of hexokinase and fructokinase in terpenoid aroma biosynthesis in Lilium 'Siberia'
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|c 2021
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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 13.10.2021
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|a Date Revised 31.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Masson SAS. All rights reserved.
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|a Lily is one of the most economically important flowers worldwide due to its elegant appearance and appealing scent, which is mainly composed of monoterpene ocimene, linalool and benzenoids. Sugars are the primary products of plants, with fructose and hexose sugars being the substrate material for most organic compounds and metabolic pathways in plants. Herein, we isolated and functionally characterized hexokinase (LoHXK) and fructokinase (LoFRK) from Lilium 'Siberia' flower, which indicated their potential roles in floral aroma production. Real-time PCR analysis showed that LoHXK and LoFRK were highly expressed in the flower filament. Overexpression and virus-induced gene silencing (VIGS) assays revealed that LoHXK and LoFRK significantly modified the emission of β-ocimene and linalool contents via regulation of expression of key structural volatile synthesis genes (LoTPS1 and LoTPS3). Under exogenous glucose and fructose application, the volatile contents of β-ocimene and linalool were increased and the expression levels of key structural genes were upregulated. The emission of β-ocimene and linalool followed a diurnal circadian rhythm. Determination of carbon fluxes via 13C-labeled glucose and 13C-labeled fructose experiments showed that the mass spectra of ocimene and linalool significantly increased, however, the m/z ratio of ethyl benzoate did not change. Furthermore, yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays showed that LoFRK interacted with LoMYB1 and LoMYB2 proteins. Together, these results suggest that hexokinase and fructokinase may play significant roles in the regulation of ocimene and linalool biosynthesis in Lilium 'Siberia'
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|a Journal Article
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|a Floral scent
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|a Fructokinase
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|a Hexokinase
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|a Lilium ‘Siberia’
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|a Terpene synthase
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|a Fructokinases
|2 NLM
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| 650 |
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|a EC 2.7.1.-
|2 NLM
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| 650 |
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7 |
|a Hexokinase
|2 NLM
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| 650 |
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|a EC 2.7.1.1
|2 NLM
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| 700 |
1 |
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|a Nian, Xinxin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Yiwei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ke, Yanguo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Liang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Rangcai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Yanping
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 167(2021) vom: 05. Okt., Seite 619-629
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:167
|g year:2021
|g day:05
|g month:10
|g pages:619-629
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2021.08.042
|3 Volltext
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|a AR
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|d 167
|j 2021
|b 05
|c 10
|h 619-629
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