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240916s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.109123
|2 doi
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|a pubmed25n1257.xml
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|a eng
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|a Andrés-Bordería, Amparo
|e verfasserin
|4 aut
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|a The role of the Arabidopsis tandem zinc-finger C3H15 protein in metal homeostasis
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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 07.11.2024
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|a Date Revised 07.11.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.
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|a Living organisms have developed finely regulated homeostatic networks to mitigate the effects of environmental fluctuations in transition metal micronutrients, including iron, zinc, and copper. In Saccharomyces cerevisiae, the tandem zinc-finger protein Cth2 post-transcriptionally regulates gene expression under conditions of iron deficiency by controlling the levels of mRNAs that code for non-essential ferroproteins. The molecular mechanism involves Cth2 binding to AU-rich elements present in the 3' untranslated region of target mRNAs, negatively affecting their stability and translation. Arabidopsis thaliana has two TZF proteins homologous to yeast Cth2, C3H14 and C3H15, which participate in cell wall remodelling. The present work examines the expression of representative metal homeostasis genes with putative AREs in plants with altered levels of C3H14 and C3H15 grown under varying metal availabilities. The results suggest that C3H15 may act as a post-transcriptional plant modulator of metal adequacy, as evidenced by the expression of SPL7, the main transcriptional regulator under copper deficiency, and PETE2, which encodes plastocyanin. In contrast to S. cerevisiae, the plant C3H15 affects copper and zinc homeostasis rather than iron. When grown under copper-deficient conditions, adult C3H15OE plants exhibit lower chlorophyll content and photosynthetic efficiency compared to control plants, suggesting accelerated senescence. Likewise, metal content in C3H15OE plants under copper deficiency shows altered mobilization of copper and zinc to seeds. These data suggest that the C3H15 protein plays a role in modulating both cell wall remodelling and metal homeostasis. The interaction between these processes may be the cause of altered metal translocation
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|a Journal Article
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|a ARE
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|a Arabidopsis thaliana
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|a C3H14
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|a C3H15
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|a Copper
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|a Post-transcriptional regulation
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|a Zinc
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|a Arabidopsis Proteins
|2 NLM
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|a Zinc
|2 NLM
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|a J41CSQ7QDS
|2 NLM
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|a Copper
|2 NLM
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|a 789U1901C5
|2 NLM
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|a Iron
|2 NLM
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|a E1UOL152H7
|2 NLM
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|a Transcription Factors
|2 NLM
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|a Mazuque-Pons, Laia
|e verfasserin
|4 aut
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|a Romeu-Perales, Marta
|e verfasserin
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|a Garcia-Molina, Antoni
|e verfasserin
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|a Andrés-Colás, Nuria
|e verfasserin
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|a Martínez-Pastor, María Teresa
|e verfasserin
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|a Sanz, Amparo
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|a Puig, Sergi
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|a Peñarrubia, Lola
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|a Perea-García, Ana
|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 216(2024) vom: 15. Nov., Seite 109123
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:216
|g year:2024
|g day:15
|g month:11
|g pages:109123
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|u http://dx.doi.org/10.1016/j.plaphy.2024.109123
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