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Hydrogen peroxide positively regulates brassinosteroid signaling through oxidation of the BRASSINAZOLE-RESISTANT1 transcription factor

ABSTRACT: Hydrogen peroxide positively regulates brassinosteroid signaling through oxidation of the BRASSINAZOLE-RESISTANT1 transcription factor

PROVIDER: PRJNA433852 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6710110.fastq.gz	Fastqsanger.gz
	SRR6710111.fastq.gz	Fastqsanger.gz
	SRR6710102.fastq.gz	Fastqsanger.gz
	SRR6710112.fastq.gz	Fastqsanger.gz
	SRR6710103.fastq.gz	Fastqsanger.gz

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Hydrogen peroxide positively regulates brassinosteroid signaling through oxidation of the BRASSINAZOLE-RESISTANT1 transcription factor

Project description:Hydrogen peroxide (H2O2) is an important signaling molecule in plant developmental processes and stress responses. However, whether H2O2-mediated signaling can crosstalk with plant hormone signaling is largely unclear. Here, we show that H2O2 induces oxidation of the BRASSINAZOLE-RESISTANT1 (BZR1) transcription factor, which functions as a master regulator of Brassinosteroid (BR) signaling. Oxidative modification enhances BZR1 transcriptional activity by promoting its interaction with regulators of auxin- and light-signaling, including AUXIN RESPONSE FACTOR6 (ARF6) and PHYTOCHROME INTERACTING FACTOR4 (PIF4). Genome-wide analysis shows that H2O2-dependent regulation of BZR1 activity plays a major role in modifying gene expression related to several BR-mediated biological processes. Furthermore, we show that the thioredoxin TRXh5 can interact with, and catalyze reduction of, BZR1. We conclude that reversible oxidation of BZR1 connects H2O2- and thioredoxin-mediated redox signaling to BR signaling to regulate plant development

2018-03-21 | GSE110488 | GEO

Response of Bacillus pumilus to hydrogen peroxide

Project description:Reactive oxygen species such as hydrogen peroxide occur in all aerobically living organisms. Oxidative stress during fermentation can impair the fitness of the production host and the quality of the product. B. pumilus has been described as highly resistant to hydrogen peroxide. The response of exponentially growing B. pumilus cells to hydrogen peroxide was studied.

2014-05-17 | GSE57735 | GEO

Adaptation to hydrogen peroxide

Project description:Adaptation to hydrogen peroxide in Saccharomyces cerevisiae is profiled with expression arrays. Adaptation describes the process in which a mild dose of toxin (in this case, hydrogen peroxide) is able to protect against a later acute dose. Here, we study two adaptive protocols (0.1 mM H2O2 and 0.1 + 0.4 mM H2O2) and one acute protocol (0.4 mM H2O2) to identify processes uniquely involved in adaptation. Predictions from these studies are validated in expression profiling of deletion mutants of the transcription factors Yap1, Mga2, and Rox1.

2009-04-23 | GSE12602 | GEO

Injury-dependent hydrogen peroxide oxidation of IKK-alpha regulates keratinocyte migration through induction of EGF

Project description:Hydrogen peroxide is known to promote skin keratinocyte migration, although the mechanism of action is unclear. In an attempt to identify signaling pathways regulated by hydrogen peroxide in the skin, 3 day post fertilized (dpf) zebrafish larvae (nacre strain) were treated with 3mM hydrogen peroxide for 2 hours and subjected to RNA-seq analyses. Pools of about 1000 embryos for each of three biological replicates were derived from 5 independent mating pairs and raised to larval stages until 3 dpf. All larvae were subsequently homogenized in Trizol and total RNA was extracted using a chloroform extraction protocol treated with DNAse. Messenger RNA (mRNA) was subsequently purified from total RNA using biotin-tagged poly dT oligonucleotides and streptavidin-coated magnetic beads, followed by quality control using an Agilent Technologies 2100 Bioanalyzer (values >7 were used for sequencing). The poly(A)-tailed mRNA samples were fragmented and double-stranded cDNA generated by random priming for deep sequencing studies.

2016-02-22 | GSE75728 | GEO

Injury-dependent hydrogen peroxide oxidation of IKK-alpha regulates keratinocyte migration through induction of EGF

2016-02-22 | E-GEOD-75728 | biostudies-arrayexpress

Response of Bacillus pumilus to hydrogen peroxide

2014-05-17 | E-GEOD-57735 | biostudies-arrayexpress

Transcriptome profiling of H. polymorpha in response to hydrogen peroxide exposure

Project description:To gain insight into the basic mechanism of Hydrogen peroxide detoxification in the methylotrophic yeast, H. polymorpha, we analyzed changes in transcriptional profiles in response to hydrogen peroxide exposure.

2015-02-28 | GSE43048 | GEO

Interactions between reactive oxygen species stress and brassinosteroid hormone signaling in Arabidopsis seedlings

2011-02-28 | GSE20756 | GEO

Interactions between reactive oxygen species stress and brassinosteroid hormone signaling in Arabidopsis seedlings

Project description:We were interested in investigating the transcriptome responses to exogenous applications of brassinosteroid hormone when Arabidopsis seedlings are pre-stressed with a reactive oxygen species, hydrogen peroxide. We were interested in seeing which subsets of BR-responsive gene transcripts were most affected and how BR-responsive gene transcripts responded to increasing concentrations of hydrogen peroxide both as a whole and individually. Liquid culture Arabidopsis seedlings are grown under standard conditions. Hydrogen peroxide is added at various concentrations to pre-stress the seedlings. Following this pretreatment, the seedlings are then treated with brassinosteroid (BR) hormone (epi-brassinolide, BL). Following this treatment, seedlings are harvested and total RNA is extracted for genome-wide transcriptome analysis.

2011-02-28 | E-GEOD-20756 | biostudies-arrayexpress

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Project description:Using data from microarray experiments, we investigated the effects of excess hydrogen peroxide on D. vulgaris. Keywords: stress response, time course

2011-07-04 | GSE21438 | GEO

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