Effect of flg22 peptide over transcriptome and nucleosome landscape of Arabidopsis on Col-0 and chromatin remodelling ATPase EDA16 mutants
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PROVIDER: PRJNA629545 | ENA |
REPOSITORIES: ENA
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Project description:Activation of plant immunity by bacterial MAMPs such as flg22 affects nucleosome positioning over thousands of loci and is correlated with the transcription of immune-related genes. Data for chromatin remodelling ATPase EDA16 truncated and over-expressor mutants as well as Col-0 (control) are provided.
2021-04-20 | GSE149654 | GEO
Project description:Arabidopsis MPK11 is activated and plays a role in the flg22 sensing. Mitogen-activated protein kinases (MAPKs) mediate cellular signal transduction during stress responses, as well as diverse growth and developmental steps in eukaryotes. Pathogen infection or treatment with conserved pathogen-associated molecular patterns (PAMPs) such as the bacterial flagellin-derived flg22 peptide are known to activate three Arabidopsis thaliana MAPKs, MPK3, MPK4 and MPK6. Several stresses, including flg22 treatment, are known to increase MPK11 expression but activation of MPK11 has not been shown. Here, we show that MPK11 activity can indeed be increased through flg22 elicitation. Expression profiling using a small-scale microarray for defense-related genes revealed that cinnamyl alcohol dehyrogenase 5 (CAD5) requires MPK11 for full flg22-induced expression. An mpk11 mutant showed increased flg22-mediated growth inhibition but no altered susceptibility to Pseudomonas syringae, Botrytis cinerea or Alternaria brassicicola.
2012-05-03 | GSE33648 | GEO
Project description:rs06-06_mirna - flg22 treatment & mutants - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? 14-day old seedlings treated with flg22 (flagellin- derived peptide). Keywords: time course,total transcriptome knowledge
2008-06-02 | GSE10383 | GEO
Project description:Arabidopsis MPK11 is activated and plays a role in the flg22 sensing. Mitogen-activated protein kinases (MAPKs) mediate cellular signal transduction during stress responses, as well as diverse growth and developmental steps in eukaryotes. Pathogen infection or treatment with conserved pathogen-associated molecular patterns (PAMPs) such as the bacterial flagellin-derived flg22 peptide are known to activate three Arabidopsis thaliana MAPKs, MPK3, MPK4 and MPK6. Several stresses, including flg22 treatment, are known to increase MPK11 expression but activation of MPK11 has not been shown. Here, we show that MPK11 activity can indeed be increased through flg22 elicitation. Expression profiling using a small-scale microarray for defense-related genes revealed that cinnamyl alcohol dehyrogenase 5 (CAD5) requires MPK11 for full flg22-induced expression. An mpk11 mutant showed increased flg22-mediated growth inhibition but no altered susceptibility to Pseudomonas syringae, Botrytis cinerea or Alternaria brassicicola. A 24 DNA microarray study using toral RNA from an Arabidopsis mutant (mpk11 SALK049352) as well as wild type treated with water or flg22.
2012-05-02 | E-GEOD-33648 | biostudies-arrayexpress
Project description:The goal of this experiment was to identify the early responsive genes activated by the 22 amino acid peptide of bacterial flagellin (flg22) in Arabidopsis seedlings that are involved in the initial responses important for plant innate immunity. We used the microarrays to detail the global program of gene expression underlying intial cellular and molecular responses to microbial associated molecualr patterns (MAMPs). Arabidopsis seedlings were treated with 2 nM flg22 for 30 min and 60 min. Transcript profiles were analyzed and compared between control and treated cells to identify early flg22 responsive genes.
2010-03-18 | E-GEOD-17382 | biostudies-arrayexpress
Project description:rs06-06_mirna - flg22 time course - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - 14-day old seedlings (Col-0 and fls2 KO) treated with 10uM of flg22 (flagellin derived peptide) over a one hour timecourse. Keywords: time course,treated vs untreated comparison
2008-06-02 | GSE10418 | GEO
Project description:Synthesis and accumulation of seed storage proteins (SSPs) is an important aspect of the seed maturation program. Genes encoding SSPs are specifically and highly expressed in the seed during maturation. However, the mechanisms that repress the expression of these genes in leaf tissue are not well understood. To gain insight into the repression mechanisms, we have performed a transgenic screening for mutants that express SSPs in leaves. Here we show that mutations of BRAHMA (BRM), a SNF2 chromatin remodelling ATPase, cause the ectopic expression of a subset of SSPs and other embryogenesis related genes in leaf tissue. Consistent with the notion that such SNF2-like ATPases form protein complexes in vivo, we observed similar phenotypes for mutations of AtSWI3C, a BRM interacting partner, and BSH, a SNF5 homolog and essential SWI/SNF subunit. Further, we present chromatin immunoprecipitation evidence that BRM is recruited to the promoters of a number of embryogenesis genes including the 2S genes, which are expressed/elevated in brm leaves. Consistent with its role in nucleosome remodelling, BRM appears to control the chromatin structure of the At2S2 promoter. These results show that a BRM-containing chromatin remodelling ATPase complex is involved in the direct repression of SSPs in leaf tissue. A matrix comprising the signal intensity value of each gene per replicate hybridization and the averaged data of each gene generated from three replicate hybridizations of the wild type and mutant samples, respectively, is linked below as a supplementary file.
2009-01-21 | GSE11505 | GEO
Project description:The goal of this experiment was to identify the early responsive genes activated by the 22 amino acid peptide of bacterial flagellin (flg22) in Arabidopsis mesophyll cells that are involved in the initial responses important for plant innate immunity. We used the microarrays to detail the global program of gene expression underlying intial cellular and molecular responses to microbial associated molecualr patterns (MAMPs). Arabidopsis mesophyll protoplasts were treated with 100 nM flg22 for 30 min and 60 min. Transcript profiles were analyzed and compared between control and treated cells to identify early flg22 responsive genes.
2010-03-18 | E-GEOD-16472 | biostudies-arrayexpress
Project description:rs06-06_mirna - flg22 treatment & mutants - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? 14-day old seedlings treated with flg22 (flagellin- derived peptide). Keywords: time course,total transcriptome knowledge 7 dye-swap - CATMA arrays
2008-06-01 | E-GEOD-10383 | biostudies-arrayexpress
Project description:rs06-06_mirna - flg22 time course - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - 14-day old seedlings (Col-0 and fls2 KO) treated with 10uM of flg22 (flagellin derived peptide) over a one hour timecourse. Keywords: time course,treated vs untreated comparison 7 dye-swap - CATMA arrays
2008-06-01 | E-GEOD-10418 | biostudies-arrayexpress