Transcriptomics,Multiomics

Dataset Information

53

Transcription profiling of Arabidopsis wild type and abi1td mutant plants stressed by ozone or drought to better understand ABA signalling


ABSTRACT: Ozone at an elevated level is an important environmental stress factor that limits plant growth and development. To test how O3-induced ROS signalling interacts with the ABA pathway we present a global characterization of O3-responsive genes in the abi1td mutant. To understand better ABA signalling and the interactions between stress-response pathways we also performed a microarray analysis of drought-treated abi1td and WT plants. Since ABA signalling is well known to mediate defined responses based on the WT and different mutants analysis in drought stress conditions, the comparison of the O3 and drought stress response in abi1td enabled the identification of new processes depending on ABA-related pathways in O3-treated plants. Altogether, our findings indicate that ABI1 plays the role of a general signal transducer linking diferrent hormone signalling pathways to O3 stress tolerance.



Key words: ROS signalling; ABA signalling; ozone stress; drought stress; environmental stress; gene knockout;

REANALYSIS of: E-MEXP-1863

ORGANISM(S): Arabidopsis thaliana  

PROVIDER: E-MEXP-1863 | ExpressionAtlas | 2015-10-22

REPOSITORIES: ExpressionAtlas

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Publications

Gene expression profiling of ozone-treated Arabidopsis abi1td insertional mutant: protein phosphatase 2C ABI1 modulates biosynthesis ratio of ABA and ethylene.

Ludwików Agnieszka A   Kierzek Dorota D   Gallois Patrick P   Zeef Leo L   Sadowski Jan J  

Planta 20090825 5


We report on the characterization of the interaction between reactive oxygen species signalling and abscisic acid (ABA)-mediated gene network in ozone (O(3)) stress response. To identify the stress-related signalling pathways and possible cross-talk controlled by an ABA-negative regulator, the protein phosphatase 2C abscisic acid insensitive1 (ABI1), we performed a genome-wide transcription profiling of O(3)-treated wild-type and ABI1 knockout (abi1td) plants. In addition, to better understand A  ...[more]

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