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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Arabidopsis thaliana roots at 7DAG; ga1, ga1 scl3 (LOF) and ga1 SCL3 OE (GOF)

ABSTRACT: Transcriptional profiling in the root between ga1, ga1 scl3 and ga1 SCL3 OE. We used Affymetrix ATH1 microarrays to determine the effect of GRAS transcription factor SCL3 and gibberellin on the growth and development of the Arabidopsis root system by global transcriptome analysis and to identify new regulators in the regulatory pathway. Three-condition experiments, ga1, ga1 scl3 and ga1 SCL3 OE. Biological triplicates: 3 ga1-3 , 3 ga1-3 scl3 and 3 ga1-3 SCL3 OE

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Eun Kyung Yoon

PROVIDER: E-GEOD-61104 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Arabidopsis thaliana roots at 7DAG; Col-0, scl3 (LOF) and SCL3 OE (GOF)

Project description:Transcriptional profiling of root part comparing wild type with scl3 mutant and SCL3 OE. We used Affymetrix ATH1 microarrays to determine the effect of GRAS transcription factor SCL3 on growth and development of Arabidopsis root system by global transcriptome analysis and to identify new regulators in the regulatory pathway. Three-condition experiments, Col-0, scl3 and SCL3 OE. Biological triplicates: 3 WT, 3 scl3 and 3 SCL3 OE

2012-10-13 | E-GEOD-41544 | biostudies-arrayexpress

Arabidopsis thaliana roots at 7DAG; ga1, ga1 scl3 (LOF) and ga1 SCL3 OE (GOF)

Project description:Transcriptional profiling in the root between ga1, ga1 scl3 and ga1 SCL3 OE. We used Affymetrix ATH1 microarrays to determine the effect of GRAS transcription factor SCL3 and gibberellin on the growth and development of the Arabidopsis root system by global transcriptome analysis and to identify new regulators in the regulatory pathway.

2014-09-05 | GSE61104 | GEO

Arabidopsis thaliana roots at 7DAG; Col-0, scl3 (LOF) and SCL3 OE (GOF)

2012-10-13 | GSE41544 | GEO

Iron-deficiency-induced changes in wild type, ubc13A and cucumber CsUBC13 overexpressed Arabidopsis thaliana roots

Project description:CsUBC13 was identified via proteomics from iron starvation treated Cucumber root. ubc13A is an ABRC seed stock (CS51269). CS851269 was purchased from ABRC and confirmed as homozygous Atubc13A knock-out T-DNA mutant. We generated transgenic arabidopsis with ectopic expression of CsUBC13 gene under control of the cauliflower 35S promotor. Both genotypes and Col-0 were used to investigate the transcriptional response to Iron (Fe) deficiency. Wild type Col-0, ubc13A and transgenic overexpressor OE were grown under normal and iron-deficiency conditions. Roots were collected with 3 biological replicates.

2009-07-07 | E-GEOD-16964 | biostudies-arrayexpress

IMA1 OE #7-4 line compared to EYFP OE line (control)

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Chip-chip from mouse olfactory epithelium (OE) and liver with antibodies against H3K9me3 and H4K20me3

Project description:The Olfactory Receptor (OR) genes are specifically expressed in the MOE in a monogenic and monoallelic fashion. Only 1 out of 2800 alleles is expressed in each olfactory sensory neuron in mice. ChIP-chip from mouse olfactory epithelium (OE) and liver for H3K9me3 and H4K20me3 revealed that the ORs are highly enriched for these modifications in OE but not in liver. 24 samples were analyzed (20 from OE and 4 from liver) with matching inputs as controls. For the OE samples, there were 2-3 replicates for each array.

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Expression data from Arabidopsis wt and ga1-3, brm-1, ga1-3/brm-1 mutants

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2013-03-08 | E-GEOD-26848 | biostudies-arrayexpress

High REDOX RESONSIVE TRANSCRIPTION FACTOR1 levels result in accumulation of reactive oxygen species in Arabidopsis thaliana shoots and roots [mature leaves]

Project description:Redox Responsive Transcription Factor1 (RRTF1) in Arabidopsis is rapidly and transiently upregulated by H202, as well as biotic and abiotic induced redox signals. Inactivation of RRTF1 restricts and overexpression promotes reactive oxygen species (ROS) accumulation in response to stress. Overexpressor (oe) lines are impaired in root and shoot development, light sensitive and susceptible to Alternaria brassicae infection. These symptoms are diminished by the beneficial root endophyte Piriformospora indica which reduces ROS accumulation locally in roots and systemically in shoots, and by antioxidants and ROS inhibitors which scavenge ROS. More than 850 stress-, redox-, ROS regulated-, ROS scavenging-, defense-, cell death- and senescence-related genes are regulated by RRTF1, ~ 30% of them have ROS related functions. Bioinformatic analyses and in vitro DNA binding assays demonstrate that RRTF1 binds to GCC-box and GCC-box like sequences in the promoter of RRTF1-responsive genes. Upregulation of RRTF1 by stress stimuli as well as H2O2 requires WRKY18/40/60. RRTF1 is co-regulated with the phylogenetically related RAP2.6, which contains GCC-box like sequene in its promoter, but RAP2.6 oe lines do not accumulate higher ROS levels. RRTF1 stimulates systemic ROS accumulation in distal non-stressed leaves. We conclude that the highly conserved RRTF1 rapidly, transiently and systemically induce ROS accumulation in response to ROS and ROS-producing abiotic and biotic stress signals. Necrotrophs stimulate RRTF1 expression, while symbiotic interactions of Arabidopsis with (hemi)-biotrophs and P. indica do not affect or repress RRTF1 expression. Mature leaves of 5 weeks-old Col-0 wild type and RRTF1-overexpressor Arabidopsis (called oe18), which were grown on soil under short-day condition at 20˚C, were subjected to RNA extraction and Affymetrix microarray analysis. Three biological independent experiments for both Col-0 and oe18 were performed.

2015-04-23 | E-GEOD-64853 | biostudies-arrayexpress

Expression data from LCM-captured Arabidopsis root cells after challenge with Meloidogyne incognita

Project description:The differentiation of specialized feeding sites in Arabidopsis root cells in response to nematode infestation involves substantial cellular reprogramming of host cells that is not well characterized at the molecular level. Expression data was generated from Arabidopsis root cells undergoing giant cell formation due to nematode infestation and from non-infested control root cells. Cells were laser captured 14 and 21 days after infestation. Samples, collected 14 days post infestation, consisted of three biological replicates per treatment (control root cells or giant cells). RNA samples were isolated from ~150 control cells or from ~80 giant cells using the PicoPure RNA Isolation Kit (Arcturus, Mountain View, USA). RNA amplifications were carried out with the NuGEN WT-Ovation Pico kit. GSM546568-GSM546577: Control and giant cells collected 21 days post infestation.

2012-04-26 | E-GEOD-37553 | biostudies-arrayexpress

Identification of early gibberellin (GA) responsive genes in Arabidopsis hypocotyls

Project description:The aim of the experiment was to identify early gibberellin (GA) responsive genes in the roots of an Arabidopsis GA deficient mutant.The GA deficient mutant used in this study is a transgenic line overexpressing the PcGA2ox1 gene. This mutant has an identical phenotype to ga1-3, but it does not require exogenous GA treatment for germination.Seeds were germinated on 1xMS + 1% (w/v) sucrose plates containing 0.7% gelrite, and grown under continous light. The plates were orientated vertically.After six days growth the plates were treated with or without 5uM GA4 for 0, 30, 60 and 180 minutes.Approximately 400 hypocotyls were harvested per timepoint using a razorblade and after excision the hypocotyls were frozen in liquid nitrogen giving a total of 7 experimental samples (1: untreated, 2: 30 mins GA4, 3: 30 mins untreated, 4: 60 mins GA4, 5: 60 mins untreated, 6: 180 mins GA4, 7: 180 mins untreated. Three biological replicates were performed giving a total of 21 root samples. Total RNA was isolated from the roots using the QIAGEN RNeasy method. Keywords: Expression profiling by array 21 samples were used in this experiment

2009-11-17 | E-GEOD-18985 | biostudies-arrayexpress

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