Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

15 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcription profiling of WT and dsr1 Arabidopsis seedlings treated with salicylic acid

ABSTRACT: Reactive oxygen species such as hydrogen peroxide (H2O2) are important in biotic and abiotic stress responses in plants, but their source is often unclear. We have identified an Arabidopsis mutant that shows loss of stress responsive GSTF8 gene expression in response to the plant defence signal salicylic acid (SA) . The mutant showed increased susceptibility to both fungal and bacterial pathogens. The dsr1 mutation was mapped to mitochondrial succinate dehydrogenase (SDH1-1) and dsr1 had reduced SDH activity and a lowered mitochondrial H2O2 production. To better understand the loss of SA-response in dsr1, we performed ATH1 microarray analysis in WT and dsr1 10 hours after a 1 mM SA treatment, a point at which we observed maximal SA-induced GSTF8 promoter activity. 4 day old WT (a Columbia line containing a -800GSTF8::LUC reporter) and dsr1 seedlings (a mutant Columbia line containing a -800GSTF8::LUC) reporterwere treated with water (mock) or 1 mM SA for 40 min. Ten hours after treatment, samples were collected.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Cynthia Gleason

PROVIDER: E-GEOD-22942 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Expression data in whole Arabidopsis seedlings after treatment with the herbicide dicamba

Project description:Dicamba is an auxin-like herbicide that can stimulate the production of ethylene and ABA biosynthesis. The subsequent stomatal closure and build-up of reactive oxygen species is hypothesized to contribute to plant death. In order to further understand the herbicide dicamba's mode of action at the molecular level, we used microarrays to dissect global gene expression in Arabidopsis seedlings 10 hrs after dicamba treatment. 4 day old Arabidopsis seedlings (a Columbia line containing a -800GSTF8::LUC reporter) were flooded with water or 7mM dicamba for 40 minutes before the treatment was poured off. Ten hours after the start of the treatment, whole seedlings were collected

2010-12-10 | E-GEOD-24052 | biostudies-arrayexpress

Transcription profiling of WT and dsr1 Arabidopsis seedlings treated with salicylic acid

Project description:Reactive oxygen species such as hydrogen peroxide (H2O2) are important in biotic and abiotic stress responses in plants, but their source is often unclear. We have identified an Arabidopsis mutant that shows loss of stress responsive GSTF8 gene expression in response to the plant defence signal salicylic acid (SA) . The mutant showed increased susceptibility to both fungal and bacterial pathogens. The dsr1 mutation was mapped to mitochondrial succinate dehydrogenase (SDH1-1) and dsr1 had reduced SDH activity and a lowered mitochondrial H2O2 production. To better understand the loss of SA-response in dsr1, we performed ATH1 microarray analysis in WT and dsr1 10 hours after a 1 mM SA treatment, a point at which we observed maximal SA-induced GSTF8 promoter activity.

2010-12-14 | GSE22942 | GEO

Regulation of the microsomal proteome by salicylic acid and deficiency of phosphatidylinositol‐4‐kinases β1 and β2 in Arabidopsis thaliana

Project description:Phosphatidylinositol-4-kinases β1 and β2 (PI4Kβ1/PI4Kβ2), which are responsible for phosphorylation of phosphoinositol to phosphatidylinositol-4-phosphate, have an important role in vesicular trafficking in plants. Moreover, PI4Kβ1/PI4β2 negatively regulate biosynthesis of phytohormone salicylic acid (SA). SA plays crucial role in plant immune responses and its endogenous concentration strongly affects plant transcriptome. In this study we were focused on the effect of the PI4Kβ1/PI4Kβ2 and SA on the abundance of membrane proteins. For this purpose, we performed proteomic analysis on isolated microsomal fractions from leaves of four Arabidopsis thaliana genotypes: wild type ecotype Columbia-0; double mutant impaired in function of PI4Kβ1/PI4Kβ2 (pi4kβ1/pi4kβ2) exhibiting high SA level; sid2 mutant with impaired SA biosynthesis depending on the isochorismate synthase 1 and triple mutant sid2/pi4kβ1/pi4kβ2. In total, we identified 4534 proteins from which 1696 proteins differed in abundance between the mutants and WT. We showed that SA has a big impact on membrane proteome, because among hundreds of the identified affected proteins typical proteins associated with SA triggered pathway occurred. Our data thus point out new connections between SA pathway and clathrin independent endocytosis (flotillins) and exocytosis/protein secretion (syntaxins, tertraspanin) to be investigated in future. In contrast to SA, presence/absence of PI4Kβ1/PI4Kβ2 itself affected only 27 proteins. Nevertheless, among them we identified CERK1, plasma membrane receptor for chitin. Although PI4Kβ1/PI4Kβ2 itself did not have strong impact on A. thaliana microsomal proteome, our data clearly shows that PI4Kβ1/PI4Kβ2 enhance the proteome changes when SA pathway is modulated in parallel

2021-02-24 | PXD019737 | Pride

Expression data of Col:LUC Arabidopsis treated with antimycin A (AA) in the presence or absence of a synthetic auxin analogue

Project description:Mitochondrial stress stimuli such as AA caused a transient suppression of auxin signaling and conversely, auxin treatment represses a part of the response to AA treatment. Expression data of Col:LUC Arabidopsis treated with antimycin A (AA) in the presence or absence of a synthetic auxin analogue Total RNA extraction was carried out on 80 mg of Col:LUC Arabidopsis seedlings grown on B5 media for 10 days and transferred to fresh plates, containing either B5 media or B5 media supplemented with 4.5 µM NAA for an additional 3 days. Seedlings were treated with 50 µM AA for 3 hours.

2014-06-01 | E-GEOD-57140 | biostudies-arrayexpress

Identification of microRNA-27b target genes in breast cancer cell lines

Project description:To identify the microRNA-27b (miR-27b) target genes in luminal-type breast cancer cells, we performed the microarray analysis using miR-27b knockdown MCF7-luc cell line (MCF7-luc anti-miR-27b), miR-27b overexpressing MCF7-luc cell line (MCF7-luc miR-27b o.e.) and their contro cell line (MCF7-luc anti-NC). After establishing MCF7-luc anti-miR-27b, MCF7-luc miR-27b o.e. and MCF7-luc anti-NC using lentivirus vector, we performed the microarray analysis.

2015-06-18 | E-GEOD-67631 | biostudies-arrayexpress

RNA Expression Data from IL-15-/- and IL-15+/+ TAX-LUC Mouse Tumors

Project description:IL-15 is recognized as a promising candidate for tumor immunotherapy and has been described as both a promoter of cancer and a promoter of anti-cancer immunity. IL-15 was discovered in cells transformed by HTLV-1, the etiologic agent of adult T cell leukemia / lymphoma (ATL) and the human retrovirus that carries the Tax oncogene. We have developed the TAX-LUC mouse model of ATL in which Tax expression drives both malignant transformation and luciferase expression, enabling non-invasive imaging of tumorigenesis in real time. To identify the role of IL-15 in spontaneous development of lymphoma in vivo, an IL-15-/- TAX-LUC strain was developed and examined. The absence of IL-15 resulted in aggressive tumor growth and accelerated mortality and demonstrated that IL-15 was not required for Tax-mediated lymphoma but was essential for anti-tumor immunity. Further analysis revealed a unique transcriptional profile in tumor cells that arise in the absence of IL-15 that included a significant increase in the expression of IL-1α and IL-1α-regulated cytokines. Moreover, anti-IL-1α antibodies and an IL-1 receptor antagonist (Anakinra) were used to interrogate the potential of IL-1α targeted therapies in this model. Taken together, these findings identify IL-15 and IL-1α as therapeutic targets in lymphoma. We used microarrays to compare the gene expression profile of tumors in IL-15-/- TAX-LUC mice to IL-15+/+ TAX-LUC mice RNA was obtained from CD16/32HI and CD16/32LO cells harvested from n=2 IL-15+/+ (control)and n=2 IL-15-/- Tax tumors and was compared to look for alterations in gene expression in malignant and tumor infiltrating cells resulting from loss of IL-15 in vivo

2013-06-11 | E-GEOD-46072 | biostudies-arrayexpress

Knockdown of mitochondrial MnSOD by inducible RNAi in Arabidopsis leaves

Project description:Mitochondrial antioxidant defence was manipulated by dexamthasone inducible RNAi knockdown of the mitochondrial superoxide dismutase (MSD1) to study transcriptional changes in response.

2011-11-01 | E-TABM-1197 | biostudies-arrayexpress

Cross-species complementation reveals conserved functions for EARLY FLOWERING 3 between monocots and dicots.

Project description:Plant responses to the environment are shaped by the external stimuli and internal signaling pathways. In both the model plant Arabidopsis thaliana and crop species, circadian clock factors have been identified as critical for growth, flowering and circadian rhythms. Outside of A. thaliana, however, little is known about the molecular function of clock genes. Therefore, we sought to compare the function of Brachypodium distachyon and Seteria viridis orthologs of EARLY FLOWERING3, a key clock gene in A. thaliana. To identify both cycling genes and putative ELF3 functional orthologs in S. viridis, a circadian RNA-seq dataset and online query tool (Diel Explorer) was generated as community resource to explore expression profiles of Setaria genes under constant conditions after photo- or thermo-entrainment. The function of ELF3 orthologs from A. thaliana, B. distachyon, and S. viridis were tested for complementation of an elf3 mutation in A. thaliana. Despite comparably low sequence identity versus AtELF3 (< 37%), both monocot orthologs were capable of rescuing hypocotyl elongation, flowering time and arrhythmic clock phenotypes. Molecular analysis using affinity purification and mass spectrometry to compare physical interactions also found that BdELF3 and SvELF3 could be integrated into similar complexes and networks as AtELF3, including forming a composite evening complex. Thus, we find that, despite 180 million years of separation, BdELF3 and SvELF3 can functionally complement loss of ELF3 at the molecular and physiological level.

2018-01-08 | PXD006352 | Pride

Expression data of ahg2-1, ahg2-1abi1-1, ahg2-1sid2-2, and WT Arabidopsis plants grown under normal growth conditions.

Project description:Arabidopsis ABA hpersensitive germination2-1 mutant shows an enhanced sensitivity to ABA. This mutant has higher levels of endogenous ABA. This mutant also exhibited SA hypersensitivity and dwarf phenotype. Regarding SA hypersensitivity, ahg2-1 exhibits higher endogenous SA level and an enhanced resistance to pathogenic bacteria. Since AHG2 encodes the Arabidopsis polyA specific ribonuclease that is involved in mRNA degradation, presumably abnormal accumulation of some mRNAs confers the unique phenotype. Transcriptome analyses are expected to offer information on the target of AHG2. In order to eliminate secondary effects of higher levels of ABA and SA, ahg2-1abi1-1 and ahg2-1sid2-2 double mutants were also examined. The transcriptome data revealed that; ahg2-1 confers unique gene expression profiles, ABA and SA affect the expression profiles of this mutant but many genes are independent of those plant hormone responses. Comparing with expression profiles of other mutants indicated that the ahg2-1 might affect mitochondrial function. Keywords: strain comparison, ABA, SA

2009-11-27 | GSE16913 | GEO

Haemophilus ducreyi 35000HPcpxA gene expression relative to 35000HP

Project description:Comparative analysis of the global gene expression of a Haemophilus ducreyi 35000HP cpxA deletion mutant relative to the wild type strain After the cpxA mutant was generated, both strain were grown in Columbia Broth. After 8 hr of growth RNA wa isolated and processed for DNA microarray analysis. This study includes three biological replicates (paired samples), and all three were subjected to dye swap.

2011-05-03 | E-GEOD-21788 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data