antifungal/nicotiana

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Pathogenesis-related PR-1 proteins are antifungal. Isolation and characterization of three 14-kilodalton proteins of tomato and of a basic PR-1 of tobacco with inhibitory activity against Phytophthora infestans.

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Three distinct basic 14-kD proteins, P14a, P14b, and P14c, were isolated from tomato (Lycopersicon esculentum Mill. cv Baby) leaves infected with Phytophthora infestans. They exhibited antifungal activity against P. infestans both in vitro (inhibition of zoospore germination) and in vivo with a

Only Specific Tobacco (Nicotiana tabacum) Chitinases and [beta]-1,3-Glucanases Exhibit Antifungal Activity.

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Different isoforms of chitinases and [beta]-1,3-glucanases of tobacco (Nicotiana tabacum cv Samsun NN) were tested for their antifungal activities. The class I, vacuolar chitinase and [beta]-1,3-glucanase isoforms were the most active against Fusarium solani germlings, resulting in lysis of the

A novel pathogen- and wound-inducible tobacco (Nicotiana tabacum) protein with antifungal activity.

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A novel pathogen- and wound-inducible antifungal protein of 20 kD was purified from tobacco (Nicotiana tabacum) Samsun NN leaves inoculated with tobacco mosaic virus (TMV). The protein, designated CBP20, was purified by chitin-affinity chromatography and gel filtration. In vitro assays demonstrated

Semicontinuous bioreactor production of a recombinant human therapeutic protein using a chemically inducible viral amplicon expression system in transgenic plant cell suspension cultures.

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Plant cell culture is an alternative for the production of recombinant human therapeutic proteins because of improved product safety, lower production cost, and capability for eukaryotic post-translational modification. In this study, bioreactor production of recombinant human alpha-1-antitrypsin

A strobilurin fungicide enhances the resistance of tobacco against tobacco mosaic virus and Pseudomonas syringae pv tabaci.

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The strobilurin class of fungicides comprises a variety of synthetic plant-protecting compounds with broad-spectrum antifungal activity. In the present study, we demonstrate that a strobilurin fungicide, F 500 (Pyraclostrobin), enhances the resistance of tobacco (Nicotiana tabacum cv Xanthi nc)

NMR-based structural validation of therapeutic antibody produced in Nicotiana benthamiana.

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CONCLUSIONS We successfully developed a method for metabolic isotope labeling of recombinant proteins produced in transgenic tobacco. This enabled assessment of structural integrity of plant-derived therapeutic antibodies by NMR analysis. A variety of expression vehicles have been developed for the

A novel two-component Tobacco mosaic virus-based vector system for high-level expression of multiple therapeutic proteins including a human monoclonal antibody in plants.

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Expression of multiple therapeutic proteins from Tobacco mosaic virus (TMV)-based vectors was not successful when plants were coinoculated with a mixture of two TMV vectors engineered to express two foreign genes individually. Here, we have engineered and developed a defective RNA (dRNA)-based TMV

Purification and characterisation of an antifungal protein, MCha-Pr, from the intercellular fluid of bitter gourd (Momordica charantia) leaves.

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An antifungal protein, designated MCha-Pr, was isolated from the intercellular fluid of bitter gourd (Momordica charantia) leaves during a screen for potent antimicrobial proteins from plants. The isolation procedure involved a combination of extraction, ammonium sulphate precipitation, gel

Actigard Increases Fungicide Efficacy Against Tobacco Blue Mold.

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Blue mold, caused by Peronospora tabacina, can be economically damaging to cigar wrapper tobacco (Nicotiana tabacum). We evaluated acibenzolar-S-methyl (ASM) as Actigard 50WG alone and in combination with a standard fungicide program for efficacy against blue mold on shade-grown cigar wrapper

Intracellular reprogramming of expression, glycosylation, and function of a plant-derived antiviral therapeutic monoclonal antibody.

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Plant genetic engineering, which has led to the production of plant-derived monoclonal antibodies (mAb(P)s), provides a safe and economically effective alternative to conventional antibody expression methods. In this study, the expression levels and biological properties of the anti-rabies virus

Novel osmotically induced antifungal chitinases and bacterial expression of an active recombinant isoform.

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NaCl (428 mM)-adapted tobacco (Nicotiana tabacum L. var Wisconsin 38) cells accumulate and secrete several antifungal chitinases. The predominant protein secreted to the culture medium was a 29-kD peptide that, based on internal amino acid sequence, was determined to be a class II acidic chitinase

Gastrodianin-like mannose-binding proteins: a novel class of plant proteins with antifungal properties.

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The orchid Gastrodia elata depends on the fungus Armillaria mellea to complete its life cycle. In the interaction, fungal hyphae penetrate older, nutritive corms but not newly formed corms. From these corms, a protein fraction with in vitro activity against plant-pathogenic fungi has previously been

Processing, targeting, and antifungal activity of stinging nettle agglutinin in transgenic tobacco.

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The gene encoding the precursor to stinging nettle (Urtica dioica L. ) isolectin I was introduced into tobacco (Nicotiana tabacum). In transgenic plants this precursor was processed to mature-sized lectin. The mature isolectin is deposited intracellularly, most likely in the vacuoles. A gene

From ligand design to therapeutic efficacy: the challenge for nicotinic receptor research.

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S-Nicotine, the principal psychoactive constituent of Nicotiana tabacum, underpins addiction to tobacco smoking. Although tobacco consumption is a leading cause of death worldwide, nicotine itself is also proposed to have potential therapeutic benefits for a diverse range of conditions. Nicotine

Plant expression systems for early stage discovery and development of lead therapeutic antibodies.

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BACKGROUND Antibodies for human clinical applications are predominantly produced in mammalian expression systems, with Chinese hamster ovary (CHO) cells being the gold standard. CHO cells are ideal for the manufacturing of the IgG class of antibodies, but not for the production of complex antibodies

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