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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2013.03.007
|2 doi
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|a pubmed24n0756.xml
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|a eng
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|a Estornell, Leandro Hueso
|e verfasserin
|4 aut
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| 245 |
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|a A VIN1 GUS::GFP fusion reveals activated sucrose metabolism programming occurring in interspersed cells during tomato fruit ripening
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|c 2013
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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 14.02.2014
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier GmbH. All rights reserved.
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|a The tomato is a model for fleshy fruit development and ripening. Here we report on the identification of a novel unique cell autonomous/cellular pattern of expression that was detected in fruits of transgenic tomato lines carrying a GFP GUS driven by the fruit specific vacuolar invertase promoter VIN1. The VIN1 promoter sequence faithfully reproduced the global endogenous VIN expression by conferring a biphasic pattern of expression with a second phase clearly associated to fruit ripening. A closer view revealed a salt and pepper pattern of expression characterized by individual cells exhibiting a range of expression levels (from high to low) surrounded by cells with no expression. This type of pattern was detected across different fruit tissues and cell types with some preferences for vascular, sub-epidermal layer and the inner part of the fruit. Cell ability to show promoter activity was neither directly associated with overall ripening - as we find VIN+ and - VIN- cells at all stages of ripening, nor with cell size. Nevertheless the number of cells with active VIN-driven expression increased with ripening and the activity of the VIN promoter seems to be inversely correlated with cell size in VIN+ cells. Gene expression analysis of FACS-sorted VIN+ cells revealed a transcriptionally distinct subpopulation of cells defined by increased expression of genes related to sucrose metabolism, and decreased activity in protein synthesis and chromatin remodeling. This finding suggests that local micro heterogeneity may underlie some aspects (i.e. the futile cycles involving sucrose metabolism) of an otherwise more uniform looking ripening program
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Plant Proteins
|2 NLM
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|a Recombinant Fusion Proteins
|2 NLM
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|a Green Fluorescent Proteins
|2 NLM
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|a 147336-22-9
|2 NLM
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|a Sucrose
|2 NLM
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|a 57-50-1
|2 NLM
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| 700 |
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|a Pons, Clara
|e verfasserin
|4 aut
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| 700 |
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|a Martínez, Alicia
|e verfasserin
|4 aut
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| 700 |
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|a O'Connor, José Enrique
|e verfasserin
|4 aut
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| 700 |
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|a Orzaez, Diego
|e verfasserin
|4 aut
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| 700 |
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|a Granell, Antonio
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 170(2013), 12 vom: 15. Aug., Seite 1113-21
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:170
|g year:2013
|g number:12
|g day:15
|g month:08
|g pages:1113-21
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|u http://dx.doi.org/10.1016/j.jplph.2013.03.007
|3 Volltext
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