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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14364
|2 doi
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|a pubmed24n0889.xml
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|a (NLM)27918629
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Curie, Catherine
|e verfasserin
|4 aut
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1 |
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|a New routes for plant iron mining
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|c 2017
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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
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|2 rdacarrier
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|a Date Completed 22.02.2018
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|a Date Revised 08.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2016 European Union. New Phytologist © 2016 New Phytologist Trust.
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|a Contents 521 I. 521 II. 522 III. 523 IV. 524 525 References 525 SUMMARY: Plant iron (Fe) uptake relies to a large extent on the capacity of cells to control and extract Fe pools safely conserved in extracytoplasmic environments such as the apoplast and vacuoles, at least as much as on the transport machinery nested in plasma membranes. Recent studies on root and embryo Fe nutrition support this assertion and show that the root Fe-deficiency response also includes the dynamic use of a large Fe reservoir bound to cell wall components in the root apoplast, secretion in the apoplast of phenolic compounds of the coumarin family, which solubilize Fe in calcareous soils, and inhibition of suberization of endodermal cells in order to allow apoplastic and transcellular radial transport of Fe. All of these responses are regulated by the stress hormones ethylene and abscisic acid (ABA), suggesting an integrated strategy within the root to adapt to Fe shortage. For its nutrition, the embryo has developed both an original uptake mechanism, in which ascorbate is effluxed to chemically reduce Fe3+ to the transport-competent Fe2+ form, and an efficient strategy to control utilization of a large Fe pool in vacuoles. This review will attempt to summarize exciting new insights into the diverse routes that Fe takes to feed plant tissues
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|a Journal Article
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|a Review
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|a apoplast
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|a embryo
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|a iron (Fe)
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|a root
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|a transport
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|a vacuole
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|a Iron
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|a E1UOL152H7
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| 700 |
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|a Mari, Stéphane
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 214(2017), 2 vom: 05. Apr., Seite 521-525
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:214
|g year:2017
|g number:2
|g day:05
|g month:04
|g pages:521-525
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|u http://dx.doi.org/10.1111/nph.14364
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