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herpes simplex/nicotiana
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5 resultados
Variable expression of the herpes simplex virus thymidine kinase gene in Nicotiana tabacum affects negative selection.
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The potentials and limitations of negative-selection systems based on the human herpes simplex virus thymidine kinase type-1 (HSVtk) gene, which causes sensitivity to the nucleoside analog ganciclovir, were examined in tobacco as a model system. There were great differences between individual
Technical advance: stringent control of transgene expression in Arabidopsis thaliana using the Top10 promoter system.
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We show that the tightly regulated tetracycline-sensitive Top10 promoter system (Weinmann et al. Plant J. 1994, 5, 559-569) is functional in Arabidopsis thaliana. A pure breeding A. thaliana line (JL-tTA/8) was generated which expressed a chimeric fusion of the tetracycline repressor and the
NICTABA and UDA, two GlcNAc-binding lectins with unique antiviral activity profiles.
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OBJECTIVE
This study aimed to assess the antiviral properties of a unique lectin (NICTABA) produced by the tobacco plant, Nicotiana tabacum.
METHODS
Cellular assays were used to investigate the antiviral activity of NICTABA and Urtica dioica agglutinin (UDA). Surface plasmon resonance (SPR) studies
Inducible expression in plants by virus-mediated transgene activation.
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We have developed a plant virus-mediated transgene activation (VMTA) system that utilizes a viral expression vector to present the inducer. The concept was tested using two well characterized components: (i) an artificial promoter based on the yeast GAL4 upstream activating sequence and the minimal
Novel pristinamycin-responsive expression systems for plant cells.
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Novel gene regulation systems were designed for plant cells responsive to the streptogramin antibiotic pristinamycin. The pristinamycin-repressible plant gene regulation concept (PIPpOFF) is based on a transcriptional activator (PIT) which consists of the Pip protein, the repressor of the
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