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Fine-tuning of the anaerobic response in plants relies on trihelix protein repression of the oxygen sensing machinery

ABSTRACT: This study analyzes transcriptomic data of Arabidopsis thaliana Col-0 and overexpression lines of Hypoxia Response Attenuator (HRA1; At3g10040) with Col-0 background (OE-HRA1). Two independent transgenic lines of OE-HRA1 were considered as biological replicates (OE-HRA1#1 and OE-HRA1#2). Seven-day-old seedlings were treated either with or without hypoxia (low oxygen) stress for 2 hours. This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls from total mRNA populations. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE50679 | GEO | 2014/07/30

SECONDARY ACCESSION(S): PRJNA218464

REPOSITORIES: GEO

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Fine-tuning of the anaerobic response in plants relies on trihelix protein repression of the oxygen sensing machinery

Project description:This study analyzes transcriptomic data of Arabidopsis thaliana Col-0 and overexpression lines of Hypoxia Response Attenuator (HRA1; At3g10040) with Col-0 background (OE-HRA1). Two independent transgenic lines of OE-HRA1 were considered as biological replicates (OE-HRA1#1 and OE-HRA1#2). Seven-day-old seedlings were treated either with or without hypoxia (low oxygen) stress for 2 hours. This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls from total mRNA populations. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform. 8 samples, 2 genotypes (Col-0 and OE-HRA1), 2 conditions (2 h non-stress and 2 h hypoxia stress), 2 independent biological replicate experiments

2014-07-30 | E-GEOD-50679 | biostudies-arrayexpress

Microarray data from pre-germinated seeds and hypoxia-treated seedlings of Arabidopsis prt6-1 and ate1 ate2 mutants of the N-end rule pathway of targeted proteolysis pathway

Project description:This study analyzes transcriptome profiles in pre-germinated seeds and hypoxia-treated seedlings of Arabidopsis thaliana wild type (Col-0) and homozygous mutants (prt6-1 and ate1 ate2). This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls. For pre-germinated seeds, seeds imbibed for 24 h were used for total RNA extraction. For hypoxia treatment, 7-d-old seedlings were incubated in a hypoxia chamber for 2 h and the entire seedling was subjected to RNA extraction. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform. Changes in the transcriptome during early seed germination stage and in response to hypoxia in seedlings were evaluated. The data led to identification of mRNAs with abundance regulated by PRT6 and ATE1 / ATE2, which are essential components for the N-end rule pathway of targeted proteolysis (NERP). A combination of genetic, biochemical and molecular analyses reveal that NERP coordinates the stability of key ethylene responsive factor (ERF) family transcription factors, which regulate expression of core hypoxia response genes and tolerance to low oxygen stress. This indicates that the NERP functions as a homeostatic sensor of low oxygen in plants. Pre-germinated seeds; 2 genotypes (Col-0 and prt6-1) x 3 independent biological replicate experiments: Hypoxia treated seedlings; 3 genotypes (Col-0, prt6-1, and ate1 ate2) x 2 treatments (2h aerobic and 2h hypoxia) x 2 independent biological replicate experiments.

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Microarray data from pre-germinated seeds and hypoxia-treated seedlings of Arabidopsis prt6-1 and ate1 ate2 mutants of the N-end rule pathway of targeted proteolysis pathway

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Constitutive expression of JASMONATE RESISTANT 1 elevates content of several jasmonates and primes Arabidopsis thaliana to better withstand drought

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Arabidopsis thaliana

Project description:Transgenic Ah24-OE vs Wild type Col 0 Arabidopsis plants

| PRJNA288139 | ENA