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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12350
|2 doi
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Nakamura, Miyuki
|e verfasserin
|4 aut
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|a The role of Arabidopsis thaliana NAR1, a cytosolic iron-sulfur cluster assembly component, in gametophytic gene expression and oxidative stress responses in vegetative tissue
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|c 2013
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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 05.03.2014
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|a Date Revised 20.04.2021
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|a published: Print-Electronic
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|a ErratumIn: New Phytol. 2013 Nov;200(3):933
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|a Citation Status MEDLINE
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|a © 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.
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|a Iron-sulfur proteins have iron-sulfur clusters as a prosthetic group and are responsible for various cellular processes, including general transcriptional regulation, photosynthesis and respiration. The cytosolic iron-sulfur assembly (CIA) pathway of yeast has been shown to be responsible for regulation of iron-sulfur cluster assembly in both the cytosol and the nucleus. However, little is known about the roles of this pathway in multicellular organisms. In a forward genetic screen, we identified an Arabidopsis thaliana mutant with impaired expression of the endosperm-specific gene Flowering Wageningen (FWA). To characterize this mutant, we carried out detailed phenotypic and genetic analyses during reproductive and vegetative development. The mutation affects NAR1, which encodes a homolog of a yeast CIA pathway component. Comparison of embryo development in nar1-3 and other A. thaliana mutants affected in the CIA pathway showed that the embryos aborted at a similar stage, suggesting that this pathway potentially functions in early seed development. Transcriptome analysis of homozygous viable nar1-4 seedlings showed transcriptional repression of a subset of genes involved in 'iron ion transport' and 'response to nitrate'. nar1-4 also exhibited resistance to the herbicide paraquat. Our results indicate that A. thaliana NAR1 has various functions including transcriptional regulation in gametophytes and abiotic stress responses in vegetative tissues
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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 thaliana
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|a cytosolic iron-sulfur (Fe-S) cluster assembly
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|a endosperm
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|a imprinted gene
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|a paraquat resistance
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|a Arabidopsis Proteins
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|a Iron-Sulfur Proteins
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|a NAR1 protein, Arabidopsis
|2 NLM
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|a Recombinant Fusion Proteins
|2 NLM
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|a Green Fluorescent Proteins
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|a 147336-22-9
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|a Aconitate Hydratase
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|a EC 4.2.1.3
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|a Paraquat
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|a PLG39H7695
|2 NLM
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|a Buzas, Diana Mihaela
|e verfasserin
|4 aut
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|a Kato, Akira
|e verfasserin
|4 aut
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|a Fujita, Masahiro
|e verfasserin
|4 aut
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|a Kurata, Nori
|e verfasserin
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|a Kinoshita, Tetsu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 199(2013), 4 vom: 19. Sept., Seite 925-935
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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|g volume:199
|g year:2013
|g number:4
|g day:19
|g month:09
|g pages:925-935
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|u http://dx.doi.org/10.1111/nph.12350
|3 Volltext
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