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http://purl.uniprot.org/citations/17897408http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/17897408http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/17897408http://www.w3.org/2000/01/rdf-schema#comment"The Arabidopsis thaliana AtNRT2.1 gene, which encodes a NO(3)(-) transporter involved in high-affinity uptake by the roots, is a molecular target of several mechanisms responsible for the regulation of root NO(3)(-) acquisition by the N status of the plant. All levels of AtNRT2.1 expression (promoter activity, transcript level, protein accumulation, transport activity) are coordinately up-regulated in the presence of NO(3)(-), and repressed by downstream N metabolites. Transgenic plants expressing the GUS reporter gene under the control of upstream sequences of AtNRT2.1 have been studied to identify elements targeted by these two regulatory mechanisms. A 150 bp sequence located upstream of the TATA box that is required for both stimulation by NO(3)(-) and repression by N metabolites of the promoter has been identified. This sequence is able to confer these two regulations to a minimal promoter. Split-root experiments indicate that the stimulation of the chimaeric promoter by NO(3)(-) occurs only at the local level, whereas its repression by N metabolites is mediated by a systemic signal spread to the whole plant. The activity of the cis-acting 150 bp element is also regulated by sucrose supply to the roots, suggesting a possible interaction between N and C signalling within this short region. Accordingly, multiple motifs potentially involved in regulations by N and/or C status are identified within this sequence by bioinformatic approaches. This is the first report of such a cis-acting element in higher plants."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.org/dc/terms/identifier"doi:10.1111/j.1365-3040.2007.01712.x"xsd:string
http://purl.uniprot.org/citations/17897408http://purl.org/dc/terms/identifier"doi:10.1111/j.1365-3040.2007.01712.x"xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Palenchar P.M."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Palenchar P.M."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Touraine B."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Touraine B."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Lepetit M."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Lepetit M."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Gojon A."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Gojon A."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Lejay L."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Lejay L."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Wirth J."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Wirth J."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Widiez T."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Widiez T."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Girin T."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Girin T."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Nazoa P."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/author"Nazoa P."xsd:string
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/date"2007"xsd:gYear
http://purl.uniprot.org/citations/17897408http://purl.uniprot.org/core/date"2007"xsd:gYear