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Differential gene expression of ARGININE DECARBOXYLASE ADC1 and ADC2 in Arabidopsis thaliana: characterization of transcriptional regulation during seed germination and seedling development

Hummel, Irène ; Bourdais, Gildas ; Gouesbet, Gwenola ; Couée, Ivan ; Malmberg, Russell L. ; El Amrani, Abdelhak

The New phytologist, 2004-09, Vol.163 (3), p.519-531 [Periódico revisado por pares]

Oxford, UK: Blackwell Science

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Título:
Differential gene expression of ARGININE DECARBOXYLASE ADC1 and ADC2 in Arabidopsis thaliana: characterization of transcriptional regulation during seed germination and seedling development
Autor: Hummel, Irène ; Bourdais, Gildas ; Gouesbet, Gwenola ; Couée, Ivan ; Malmberg, Russell L. ; El Amrani, Abdelhak
Assuntos: Arabidopsis ; Arabidopsis thaliana ; arginine decarboxylase ; Biochemistry, Molecular Biology ; Biological and medical sciences ; Botanics ; chilling ; cold stress ; Cooling ; development ; enzyme activity ; ethylene ; Fundamental and applied biological sciences. Psychology ; gene expression regulation ; Genes ; Genomics ; Germination ; Life Sciences ; light ; Messenger RNA ; Metabolism ; molecular sequence data ; Nitrogen metabolism ; nucleotide sequences ; Plant physiology and development ; plant proteins ; plant response ; Plant roots ; Plantlets ; Plants ; Polyamines ; promoter regions ; Seed germination ; seedling growth ; Seedlings ; stress ; sucrose ; transcription (genetics) ; transcriptional regulation ; transgenic plants ; Vegetal Biology ; vegetative growth
É parte de: The New phytologist, 2004-09, Vol.163 (3), p.519-531
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: • In plants, polyamines can generally be synthesized by the ornithine decarboxylase and arginine decarboxylase pathways. However, the model plant Arabidopsis thaliana appears to possess only the arginine decarboxylase pathway. As two paralogous ARGININE DECARBOXYLASE (ADC) genes are present in Arabidopsis, we investigated differential expression and potential differences of promoter activity during seedling development and under specific stress conditions. • Promoter activities were studied in stable homozygotic transformants harbouring promoter::reporter gene fusions. • Under temperate conditions, ADC2 promoter activity was strongly associated with seed germination, root and leaf development, whereas ADC1 promoter activity was low during vegetative development. Light, sucrose and ethylene were shown to be important regulators of ADC2 promoter activity. By contrast, in roots and leaves of plantlets subjected to chilling treatment the ADC1 paralogue showed high promoter activity whereas ADC2 promoter activity was considerably decreased. • In situations of seed germination, root development and response to chilling, the modifications of promoter activities were associated with changes in mRNA levels, emphasizing the involvement of transcriptional regulation in ARGININE DECARBOXYLASE gene expression.
Editor: Oxford, UK: Blackwell Science
Idioma: Inglês

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Differential gene expression of ARGININE DECARBOXYLASE ADC1 and ADC2 in Arabidopsis thaliana: characterization of transcriptional regulation during seed germination and seedling development

Hummel, Irène ; Bourdais, Gildas ; Gouesbet, Gwenola ; Couée, Ivan ; Malmberg, Russell L. ; El Amrani, Abdelhak

Oxford, UK: Blackwell Science

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