Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"NPR1"”.
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An investigation into the role of cytosolic free Ca2+ in Salicylic acid mediation of disease resistance in Arabidopsis
… SA-induced [Ca2+]c increase in the regulation of NPR1 expression since modulation of the SA-induced [Ca2+]c response with the extracellular Ca2+ chelator BAPTA causes a reduction in NPR1 mRNA levels. We have isolated two putative mutants that are defective in their ability to produce a SA-induced …
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Large-scale studies and biophysical analysis of systems involved in plant immunity.
… by salicylic acid (SA) and the SAR-orchestrator, NPR1. Finally, we demonstrated that NPR1 binds SA and that this interaction leads to the destabilization of NPR1. More importantly, the method used to show the latter is scalable and can be used to develop novel chemistries capable of deploying …
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The Molecular Consequences of CK2-mediated Phosphorylation of the TGA2 Transcription Factor within Systemic Acquired Resistance of Arabidopsis thaliana
… non-expressor of pathogenesis-related gene 1 (NPR1) protein forming an activating complex enabling PR1 transcription. This study elucidates the TGA2 dissociation mechanism by introducing protein kinase CK2 into this process. This enzyme efficiently phosphorylates TGA2 resulting in two crucial …
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I. Etablierung eines induzierbaren Suizidsystems zur Identifizierung von Mutanten der salizylsäureabhängigen Signaltransduktion II. Expression von tierischen Signaltransduktionskomponenten in Tabak zur Herstellung eines induzierbaren Expressionssystems
… eingebracht.Das regulatorische Protein NPR1 ist eine entscheidende Komponente bei der durch Salizylsäure induzierten Aktivierung der späten" Abwehrgene. Durch Kreuzung der transgenen 5×as-1-GUS-Deac-Pflanzen mit npr1-Mutanten konnte gezeigt werden, daß NPR1 keinen entscheidenden Einfluß …
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Structural Investigation of Bacterial Pathogenesis and Host Immune Response
… the infection sites (Dodds & Rathjen, 2010). NPR1 (NONEXPRESSOR OF PATHOGENESIS-RELATED GENES 1) is a master immune regulator in plants. It orchestrates systemic acquired resistance (SAR) by activating PATHOGENESIS-RELATED(PR) genes in response to induction of salicylic acid (SA) during the …
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Towards understanding of plasmodesmal association and regulation using Plasmodesmata-Located Protein 5 as a model
… or signaling pathways such as eds1, ics1 or npr1, using PD permeability assays and PD callose quantifications showed that, SA accumulation is critical for PDLP5-mediated PD-callose deposition and -closure during microbial pathogen infection.
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Investigation of the roles of a membrane-bound caleosin in higher plants
… non-expressor of pathogenesis related protein 1 (npr1) knockout mutant plant demonstrates Clo-3 response to salicylic acid (SA) is chiefly via npr1 translocation to the nucleus. The type of peroxygenase epitomised by Clo-3 is similar to those involved in the formation of epoxy alcohols from fatty …
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REGULATION OF DEFENSE RESPONSES MEDIATED BY BON1 AND BAP2 IN ARABIDOPSIS THALIANA
… to negatively regulate the R gene suppressor of npr1-1, constitutive 1 (SNC1). In the Columbia (Col) accession of A. thaliana, the loss-of-function (LOF) bon1-1 mutant allele exhibits a growth defect phenotype (dwarfed plant). bon1-1 leads to constitutive activation of SNC1 which compromises …
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Molecular Characterisation of the Brassinosteroid, Phytosulfokine and cGMP-dependent Responses in Arabidopsis thaliana
… to that of atrial natriuretic peptide receptors NPR1 and NPR2. The findings also strongly suggest that cGMP has a role as a second messenger in both Brassinosteroid and Phytosulfokine signalling. We speculate that other proteins with similar domain organisations may also have dual catalytic …
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Isolation and Characterization of Proteins Interacting with Tobacco Transcription Factor TGA2.2
… planta bestätigt. At1g28480 kann über TGA2.2 mit NPR1 in einem `Hefe Drie-Hybrid System` interagieren. Die Expression des At1g28480 Gens werden nach Pathogeninfektion und SA behandlung induziert. Überexpression oder Unterdrückung des At1g28480 Gens in Arabidopsis änderte nicht die Expression des …
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Dissection of Regulatory Networks Mediating Resistance and Susceptibility of Arabidopsis thaliana to the Downy Mildew Pathogen Hyaloperonospora parasitica
… with defense signal transduction (PAD4, NDR1, NPR1, RAR1). Double mutant combinations of these signal transduction components were analyzed to detect additive or functionally-redundant contributions to RPP7-dependent resistance. Most of the double mutants support an enhanced level of asexual …
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Molecular characterization of tomato brown rugose fruit virus-host interactions and development of biocontrol strategies
… HSP90 through stabilizing the master regulator NPR1 (nonexpressor of pathogenesis-related genes 1). As a counteracting mechanism, ToBRFV CP antagonizes host defenses by specifically targeting the SGT1-HSP90 complex for proteasomal degradation. To develop a biocontrol agent through …
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Regulation of plant innate immunity: the role of protein import and the novel MOS4-associated complex
… is independent of the signalling protein NPR1. MOS4 encodes a protein with homology to human Breast Cancer Amplified Sequence 2 and with predicted protein-protein interaction domains. Subcellular localization of MOS4-GFP shows that MOS4 is localized to the nucleus. To illuminate the …
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Functional Characterization of Four Xanthomonas euvesicatoria Type III Effectors
… factor, NbVOZ, and represses the expression of NPR1, a key component of the basal defense. Therefore, XopN has a role in maintaining a water-affluent environment for better replication of Xe, and it can also interact with NbVOZ1/2 to regulate plant immunity. AvrRxo1, a T3E of Xanthomonas oryzae …
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Arabidopsis thaliana class II TGA transcription factors provide a molecular link between salicylic acid and ethylene defense signalling
… sind der redox-regulierte Co-Aktivator NPR1 und die TGA-Transkriptionsfaktoren. Zur Abwehr von nekrotrophen Pathogenen wird sowohl der Jasmonsäure (JA)- als auch der Ethylen (ET)-Signalweg benötigt, deren beider Signale auf dem Promotor des Transkriptionsfaktors ORA59 integriert werden. …