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240916s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2024.112260
|2 doi
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|a pubmed24n1590.xml
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|a (DE-627)NLM377640794
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|a (NLM)39277046
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|a (PII)S0168-9452(24)00287-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Landi, Simone
|e verfasserin
|4 aut
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| 245 |
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|a Lack of Arabidopsis chloroplastic glucose-6-phosphate dehydrogenase 1 (G6PD1) affects lipid synthesis during cold stress response
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 26.10.2024
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|a Date Revised 04.11.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier B.V. All rights reserved.
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|a Cold stress represents one of the major constraints for agricultural systems and crops productivity, inducing a wide range of negative effects. Particularly, long-term cold stress affects lipid metabolism, modifying the lipids/proteins ratio, the levels of phospholipids and glycolipids, and increasing lipids' unsaturation in bio-membranes. Glucose-6-phosphate dehydrogenase (G6PDH) reported prominent roles as NADPH suppliers in response to oxidative perturbations. Cytosolic G6PDH was suggested as the main isoform involved in cold stress response, while a down-regulation of the chloroplastic P1-G6PDH was observed. We thus investigated an Arabidopsis mutant defective for the P1-G6PDH (KO-P1) using integrated approaches to verify a possible role of this isoform in low temperature tolerance. KO-P1 genotype showed an improved tolerance to cold stress, highlighting a better photosynthetic efficiency, a reduction in stress markers content and a different regulation of genes involved in stress response. Intriguingly, the lack of P1-G6PDH induced modification in the levels of the main fatty acid and lipid species affecting the morphology of chloroplasts and mitochondria, which was restored under cold. Globally, these results indicate a priming effect induced by the absence of P1-G6PDH able to improve the tolerance to abiotic stress. Our results suggest novel and specific abilities of P1-G6PDH, highlighting its central role in different aspects of plant physiology and metabolism
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|a Journal Article
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|a Chloroplast
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|a Desaturases
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|a Fatty acid
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|a Glycolipids
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|a Pentose phosphate pathway
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|a Phospholipids Photosynthesis
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|a ROS
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|a Glucosephosphate Dehydrogenase
|2 NLM
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| 650 |
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|a EC 1.1.1.49
|2 NLM
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Lipids
|2 NLM
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| 700 |
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|a Vitale, Ermenegilda
|e verfasserin
|4 aut
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|a Lanzilli, Mariamichela
|e verfasserin
|4 aut
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| 700 |
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|a Arena, Carmen
|e verfasserin
|4 aut
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| 700 |
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|a D'Ippolito, Giuliana
|e verfasserin
|4 aut
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| 700 |
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|a Fontana, Angelo
|e verfasserin
|4 aut
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| 700 |
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|a Esposito, Sergio
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 349(2024) vom: 26. Nov., Seite 112260
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
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|g volume:349
|g year:2024
|g day:26
|g month:11
|g pages:112260
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|u http://dx.doi.org/10.1016/j.plantsci.2024.112260
|3 Volltext
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|d 349
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