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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2016.06.005
|2 doi
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|a pubmed25n0872.xml
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|a (PII)S0176-1617(16)30101-8
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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 |
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|a Chandran, Anil Kumar Nalini
|e verfasserin
|4 aut
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|a Genome-wide transcriptome analysis of expression in rice seedling roots in response to supplemental nitrogen
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|c 2016
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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 10.04.2017
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier GmbH. All rights reserved.
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|a Nitrogen (N) is the most important macronutrient for plant growth and grain yields. For rice crops, nitrate and ammonium are the major N sources. To explore the genomic responses to ammonium supplements in rice roots, we used 17-day-old seedlings grown in the absence of external N that were then exposed to 0.5mM (NH4)2SO4 for 3h. Transcriptomic profiles were examined by microarray experiments. In all, 634 genes were up-regulated at least two-fold by the N-supplement when compared with expression in roots from untreated control plants. Gene Ontology (GO) enrichment analysis revealed that those upregulated genes are associated with 23 GO terms. Among them, metabolic processes for diverse amino acids (i.e., aspartate, threonine, tryptophan, glutamine, l-phenylalanine, and thiamin) as well as nitrogen compounds are highly over-represented, demonstrating that our selected genes are suitable for studying the N-response in roots. This enrichment analysis also indicated that nitrogen is closely linked to diverse transporter activities by primary metabolites, including proteins (amino acids), lipids, and carbohydrates, and is associated with carbohydrate catabolism and cell wall organization. Integration of results from omics analysis of metabolic pathways and transcriptome data using the MapMan tool suggested that the TCA cycle and pathway for mitochondrial electron transport are co-regulated when rice roots are exposed to ammonium. We also investigated the expression of N-responsive marker genes by performing a comparative analysis with root samples from plants grown under different NH4(+) treatments. The diverse responses to such treatment provide useful insight into the global changes related to the shift from an N-deficiency to an enhanced N-supply in rice, a model crop plant
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|a Journal Article
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|a Gene ontology
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|a MapMan
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|a Nitrogen supplementation
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|a Rice
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|a Transcriptome
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|a Ammonium Compounds
|2 NLM
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|a Plant Proteins
|2 NLM
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| 650 |
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|a RNA, Plant
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
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|a Priatama, Ryza A
|e verfasserin
|4 aut
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|a Kumar, Vikranth
|e verfasserin
|4 aut
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|a Xuan, Yuanhu
|e verfasserin
|4 aut
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|a Je, Byoung Il
|e verfasserin
|4 aut
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| 700 |
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|a Kim, Chul Min
|e verfasserin
|4 aut
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|a Jung, Ki-Hong
|e verfasserin
|4 aut
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| 700 |
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|a Han, Chang-Deok
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 200(2016) vom: 01. Aug., Seite 62-75
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnas
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| 773 |
1 |
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|g volume:200
|g year:2016
|g day:01
|g month:08
|g pages:62-75
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| 856 |
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|u http://dx.doi.org/10.1016/j.jplph.2016.06.005
|3 Volltext
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