Dataset Information


Transcription profiling by array of Arabidopsis mutant for phyA after exposure to low red:far-red light treatment

ABSTRACT: The purpose of this experiment was to identify genes responding differently to a 24 h low red to far red ratio (R:FR) treatment in plants grown at 16 and 22 degrees Experiment Overall Design: Microarrays were used as a gene discovery tool to identify genes showing differential regulation by low R:FR at 2 growth temperatures. Plants subject to a 24 h low R:FR light treatment were compared with control plants maintained in high R:FR. This experiment was carried out at two growth temperatures, 16oC and 22oC.

INSTRUMENT(S): 418 [Affymetrix]

ORGANISM(S): Arabidopsis thaliana  

SUBMITTER: Keara Franklin  

PROVIDER: E-GEOD-8745 | ArrayExpress | 2008-06-16



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Light-quality regulation of freezing tolerance in Arabidopsis thaliana.

Franklin Keara A KA   Whitelam Garry C GC  

Nature genetics 20071028 11

To acquire freezing tolerance, higher plants require a period of low temperature (usually <4 degrees C) termed cold acclimation. Upon transfer of plants to low temperature, increased expression of the CRT/DRE binding factor (CBF) family of transcriptional activators leads to the upregulation of genes containing a C-repeat/drought-responsive (CRT/DRE) promoter element and metabolic changes that enhance tolerance to subzero temperatures. Here, we show that a low red to far-red ratio (R/FR) light s  ...[more]

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