• EF-Tu receptor, abbreviated as EFR, is a pattern-recognition receptor (PRR) that binds to the prokaryotic protein EF-Tu (elongation factor thermo unstable) in Arabidopsis thaliana. (wikipedia.org)
  • The plant Arabidopsis thaliana has a genome with only around 135 megabase pairs (Mbp), making it small enough to fully synthesize. (wikipedia.org)
  • Here we report the structure of the Arabidopsis thaliana BRI1 ligand-binding domain, determined by X-ray diffraction at 2.5 Å resolution. (nature.com)
  • Here we describe a transcriptomic analysis based on single nucleotide polymorphisms (SNPs) present in two Arabidopsis thaliana accessions, one used as female and the other as male. (biomedcentral.com)
  • Arabidopsis thaliana and Pseudomonas syringae pathovar tomato ( Pto ) provide an excellent plant-bacteria model system to study innate immunity. (biomedcentral.com)
  • The best studied PAMP recognition systems in plants are represented by the bacterial flagellin recognized by the Arabidopsis thaliana FLS2 receptor and the fungal chitin recognized by the CEBiP receptor [ 1 ]. (biomedcentral.com)
  • ALD1 ( ABERRANT GROWTH AND DEATH2 [ AGD2 ]- LIKE DEFENSE1 ) is one of the key defense regulators in Arabidopsis thaliana and Nicotiana benthamiana . (ppjonline.org)
  • Utilizing Arabidopsis mutants previously shown to be defective in flg22-induced ROS, we demonstrate that ROS elicited by live Pto was fully or in part dependent on RbohD and BAK1 , respectively. (biomedcentral.com)
  • FLS2 and CEBiP are found associated with RLK proteins like BAK1 in Arabidopsis and CERK1 in rice respectively [ 1 ]. (biomedcentral.com)
  • For example, the Arabidopsis receptor protein FLAGELLIN-SENSING (FLS2) associates with the co-receptor protein BRASSINOSTEROID INSENSITIVE 1-SSOCIATED KINASE 1 (BAK1) in a complex to sense the bacterial PAMP molecule flg22 (Sun et al. (biomedcentral.com)
  • Mutation in FER gene leads to the reduction of the ligand-induced assembly of immune receptor complexes FLS2-BAK1 and EFR-BAK1 (Stegmann et al. (biomedcentral.com)
  • The plasma membrane-localized BRI1-ASSOCIATED KINASE1 (BAK1) functions as a co-receptor with several receptor kinases including the brassinosteroid (BR) receptor BRASSINOSTEROID-INSENSITIVE 1 (BRI1), which is involved in growth, and the receptors for bacterial flagellin and EF-Tu, FLAGELLIN-SENSING 2 (FLS2) and EF-TU RECEPTOR (EFR), respectively, which are involved in immunity. (illinois.edu)
  • We first produced transgenic Arabidopsis lines expressing BAK1 (Y610F)-Flag in the homozygous bak1-4 bkk1-1 double null background. (illinois.edu)
  • Furthermore, untagged BAK1 (Y610F) transgenic plants were as responsive as plants expressing BAK1 (in the bak1-4 background) and wild-type Col-0 plants toward treatment with the EF-Tu- and flagellin-derived peptide epitopes elf18- and flg22, respectively, as measured by reactive oxygen species production, mitogen-activated protein kinase activation, and seedling growth inhibition. (illinois.edu)
  • but comparably little is known whether in Arabidopsis , ROS is produced in response to intact live Pto and whether this response can be used to dissect genetic requirements of the plant host and live bacterial pathogens in planta . (biomedcentral.com)
  • Here, we report of a fast and robust bioassay to quantitatively assess early ROS in Arabidopsis leaves, a tissue commonly used for pathogen infection assays, in response to living bacterial Pto strains. (biomedcentral.com)
  • We provide evidence and necessary control experiments demonstrating that in planta , this ROS bioassay can be utilized to rapidly screen different Arabidopsis mutant lines and ecotypes in combination with different bacterial strains to investigate the genetic requirements of a plant host and its pathogen. (biomedcentral.com)
  • Like EFR, FLS2 (flagellin-sensing 2) is a plant receptor-like kinase that acts as a PRR in the plant innate immune system. (wikipedia.org)
  • Shiu, S. H. & Bleecker, A. B. Receptor-like kinases from Arabidopsis form a monophyletic gene family related to animal receptor kinases. (nature.com)
  • The FLS2 protein belongs to the Receptor-like Kinase (RLK) gene family. (biomedcentral.com)
  • The receptor-like kinase (RLK) FERONIA functions in immunity in Arabidopsis . (biomedcentral.com)
  • Consistent with strong induction of abnormal cell growth by HrcC(-), we found that the PTI elicitor flg22 also activates abnormal cell growth, depending on a functional flg22-receptor FLS2. (omicsdi.org)
  • thus for experimental ease, many studies utilize single synthesized PAMPs such as flg22, a short protein peptide derived from Pseudomonas flagellin. (biomedcentral.com)
  • Flg22 recognition by Arabidopsis Flagellin Sensing 2 (FLS2) initiates a plethora of signaling responses including rapid production of apoplastic reactive oxygen species (ROS). (biomedcentral.com)
  • Dynamics of defense responses and cell fate change during Arabidopsis-Pseudomonas syringae interactions. (omicsdi.org)
  • Toward a better understanding of PTI, ETS, and ETI, we systematically examined various defense-related phenotypes of Arabidopsis infected with different Pseudomonas syringae pv. (omicsdi.org)
  • Thus, our study has revealed a comprehensive picture of dynamic changes of defense phenotypes and cell fate determination during Arabidopsis-P. syringae interactions, contributing to a better understanding of plant defense mechanisms. (omicsdi.org)
  • The immune response triggered by FLS2 is very similar to the one that is triggered by EFR and the enzymes that are activated by both receptors likely come from a common pool that is found in many cells. (wikipedia.org)
  • Other proteins that are required for the proper synthesis of EFR include Arabidopsis CRT3 and UGGT, which are members of the EFR-QC and act as chaperones to help folding. (wikipedia.org)
  • In Arabidopsis , Catharanthus roseus RLK1-like kinase ( Cr RLK1L) proteins play vital roles in regulating both PTI and ETI (Mang et al. (biomedcentral.com)
  • The functions of Cr RLK1L proteins are conserved in cell growth, cell-cell communication and cell wall integrity (CWI) in Arabidopsis and rice (Lindner et al. (biomedcentral.com)
  • One of these is the PRR/DAMP pair between the Arabidopsis Wall-Associated Kinase 1 (AtWAK1) and oligogalacturonides (OGs) [ 9 ] derived from the pectin embedded in the cell-wall of most plants [ 10 ]. (biomedcentral.com)
  • For future experiments, this robust bioassay can be easily extended beyond Arabidopsis - Pto to diverse plant-pathosystems including crop species and their respective microbial pathogens. (biomedcentral.com)
  • Instead of binding to EF-Tu, it binds to flagellin, another highly conserved structure present on many pathogens. (wikipedia.org)
  • 2018 ). For example, mutations in Arabidopsis FER lead to sterile and growth defection with semi-dwarf, abnormal trichomes, box-shaped epidermal cells, defected root hair (Duan et al. (biomedcentral.com)
  • Nadeau, J. A. & Sack, F. D. Control of stomatal distribution on the Arabidopsis leaf surface. (nature.com)
  • The analysis of the crystal structure of Arabidopsis FLS2 and BAK1 ectodomains in complex with flg22 revealed that FLS2 LRRs bind specific residues of flg22, while BAK1 recognizes the C-terminus of FLS2-bound flg22 5 . (nature.com)
  • The physical interaction between FLS2 and BAK1 leads to the activation of their intracellular kinase domains and the initiation of immune signalling 6 . (nature.com)
  • Structural basis for flg22-induced activation of the Arabidopsis FLS2-BAK1 immune complex. (nih.gov)
  • We provide evidence here that T3SS effector-based suppression does not appear to be sufficient to overcome FLS2-based immunity during Pst DC3000 infection, but that the phytotoxin coronatine (COR) produced by Pst DC3000 also plays a critical role. (duke.edu)
  • Instead of binding to EF-Tu, it binds to flagellin, another highly conserved structure present on many pathogens. (wikipedia.org)
  • We selected the WRKY29-promoter reporter line to identify mutants in the signaling pathway downstream of FLS2. (uea.ac.uk)
  • In this chapter we describe the instrument setup for high-throughput imaging of leaves, protocols for flg22-induced endocytosis, image acquisition for fluorescent-tagged FLS2 receptors and subcellular markers, automated image analysis of cellular parameters, and data outputs of FLS2 endocytosis. (uea.ac.uk)
  • The RLK resistant genes FLS2, BIR2, ERECTA, IOS1, and AtSERK1 from Arabidopsis and SLSERK1 from Solanum lycopersicum were present in different pairwise syntenic blocks among the legume species. (biomedcentral.com)
  • We generated nine transgenic Arabidopsis reporter lines expressing the LUC gene fused to multiple promoter sequences of defense-related genes. (uea.ac.uk)
  • Although five flg22-insensitive awf mutants harbored mutations in FLS2 itself, Lumi-Map revealed three genes not previously associated with PTI. (uea.ac.uk)
  • Only limited knowledge exists on how EFR and FLS2 function at the molecular level. (upm.es)
  • Although bacteria are thought to carry multiple microbe-associated molecular patterns, stomata of fls2 plants are completely unresponsive to COR-deficient mutant Pst DC3000 bacteria. (duke.edu)
  • Quantification of endosomes containing FLS2 can thus be used as a direct readout of immune response activation at the cellular level. (uea.ac.uk)
  • COR-deficient mutants of Pst DC3000 are severely reduced in virulence when inoculated onto the leaf surface of wild-type Columbia-0 plants, but this defect was rescued almost fully in fls2 mutant plants. (duke.edu)