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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2010.11.020
|2 doi
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|a pubmed24n0686.xml
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|a (NLM)21315474
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|a DE-627
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|a eng
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|a Murgia, Irene
|e verfasserin
|4 aut
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|a Arabidopsis CYP82C4 expression is dependent on Fe availability and circadian rhythm, and correlates with genes involved in the early Fe deficiency response
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|c 2011
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|a Text
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|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 28.07.2011
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|a Date Revised 03.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2011 Elsevier GmbH. All rights reserved.
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|a Under conditions of reduced iron availability, most frequent in calcareous soils, plants induce the "Fe Deficiency Response" to improve root Fe uptake. The transcription factor FIT is essential for such a response in strategy I plants, such as Arabidopsis thaliana. From microarray analysis of Arabidopsis roots, it is known that three different cytochrome P450 genes, CYP82C4, CYP82C3 and CYP71B5 are up-regulated under Fe deficiency through a FIT-dependent pathway. We show that, out of these three P450 genes, only CYP82C4 strongly correlates with genes involved in metal uptake/transport. The CYP82C4 promoter, unlike those of CYP82C3 and CYP71B5, contains several IDE1-like sequences (iron deficiency-responsive element) as well as an RY element. While confirming that the CYP82C4 transcript accumulates in Fe-deficient Arabidopsis seedlings, with circadian fluctuations in a light-dependent way, we also demonstrate that such accumulation is suppressed under Fe excess. Full suppression of CYP82C4 expression, as observed in the atc82c4-1 KO mutant, is associated with longer roots at the seedling stage. We propose that CYP82C4 is involved in the early Fe deficiency response, possibly through an IDE1-like mediated pathway
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis Proteins
|2 NLM
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|a Cytochrome P-450 Enzyme System
|2 NLM
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|a 9035-51-2
|2 NLM
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|a Iron
|2 NLM
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|a E1UOL152H7
|2 NLM
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|a Tarantino, Delia
|e verfasserin
|4 aut
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|a Soave, Carlo
|e verfasserin
|4 aut
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|a Morandini, Piero
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 168(2011), 9 vom: 15. Juni, Seite 894-902
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:168
|g year:2011
|g number:9
|g day:15
|g month:06
|g pages:894-902
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|u http://dx.doi.org/10.1016/j.jplph.2010.11.020
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