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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2015.10.007
|2 doi
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|a pubmed24n0853.xml
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|a (DE-627)NLM256180989
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|a (NLM)26735749
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|a (PII)S0176-1617(15)00243-6
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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 Fernandes, João C
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Regulation of cell wall remodeling in grapevine (Vitis vinifera L.) callus under individual mineral stress deficiency
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|c 2016
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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 18.10.2016
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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 © 2015 Elsevier GmbH. All rights reserved.
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|a Cell wall (CW) is a dynamic structure that determines the plant form, growth and response to environmental conditions. Vitis vinifera callus grown under nitrogen (-N), phosphorous (-P) and sulfur (-S) deficiency were used as a model system to address the influence of mineral stress in CW remodeling. Callus cells morphology was altered, mostly under -N, resulting in changes in cell length and width compared with the control. CW composition ascertained with specific staining and immuno-detection showed a decrease in cellulose and altered pattern of pectin methylesterification. Under mineral stress genes expression from candidate families disclosed mainly a downregulation of a glycosyl hydrolase family 9C (GH9C), xyloglucan transglycosylase/hydrolases (XTHs) with predicted hydrolytic activity and pectin methylesterases (PMEs). Conversely, upregulation of PMEs inhibitors (PMEIs) was observed. While methylesterification patterns can be associated to PME/PMEI gene expression, the lower cellulose content cannot be attributed to altered cellulose synthase (CesA) gene expression suggesting the involvement of other gene families. Salt extracts from -N and -P callus tissues increased plastic deformation in cucumber hypocotyls while no effect was observed with -S extracts. The lower endo-acting glycosyl hydrolase activity of -N callus extracts pinpoints a more expressive impact of -N on CW-remodeling
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cell wall polymers
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|a Endoglucanase activity
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|a Gene expression
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|a Nutrient deficiency
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|a Pectin desterification
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|a Minerals
|2 NLM
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Phosphorus
|2 NLM
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| 650 |
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7 |
|a 27YLU75U4W
|2 NLM
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| 650 |
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|a Sulfur
|2 NLM
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| 650 |
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7 |
|a 70FD1KFU70
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Goulao, Luis F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Amâncio, Sara
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 190(2016) vom: 15. Jan., Seite 95-105
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:190
|g year:2016
|g day:15
|g month:01
|g pages:95-105
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|u http://dx.doi.org/10.1016/j.jplph.2015.10.007
|3 Volltext
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|d 190
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