Dataset Information


Transcription profiling by array of Arabidopsis expressing PAP1 under the control of the 35S promoter

ABSTRACT: Examine global gene expression patterns in control and 35S:PAP1 Arabidopsis plants upon environmental perturbation (light and temperature) over the course of the experiments. Experiment Overall Design: Red coloured 35S:PAP1, and empty vector control, plants of Arabidopsis thaliana Columbia were grown under room temperature, high light (RTHL, 22°C, 440 µmol m-2 s-1 irradiance) conditions to promote red leaf colouration. The growth conditions were then changed to a high day temperature, low light (HTLL: 30°C day, 150 µmol m-2 s-1 irradiance) stress treatment for six days, during which time the 35S:PAP1 leaves lost much of their red colouration, turning green. The growth conditions were then returned to a low temperature high light (LTHL, 15°C, 62% RH, 440 µmol m-2 s-1 irradiance) regime to restore the red colouration.

INSTRUMENT(S): 418 [Affymetrix]

ORGANISM(S): Arabidopsis thaliana  

SUBMITTER: Mingshu Cao  

PROVIDER: E-GEOD-13469 | ArrayExpress | 2008-11-15



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* High-temperature, low-light (HTLL) treatment of 35S:PAP1 Arabidopsis thaliana over-expressing the PAP1 (Production of Anthocyanin Pigment 1) gene results in reversible reduction of red colouration, suggesting the action of additional anthocyanin regulators. High-performance liquid chromatography (HPLC), liquid chromatography mass spectrometry (LCMS) and Affimetrix-based microarrays were used to measure changes in anthocyanin, flavonoids, and gene expression in response to HTLL. * HTLL treatmen  ...[more]

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